Document:

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                                                                   EXHIBIT 10.72
                                  CURIS, INC.

                        2000 DIRECTOR STOCK OPTION PLAN

1.   Purpose.
     --------

     The purpose of this 2000 Director Stock Option Plan (the "Plan") of Curis,
Inc. (the "Company") is to encourage ownership in the Company by non-employee
directors of the Company whose continued services are considered essential to
the Company's future progress and to provide them with a further incentive to
remain as directors of the Company.

2.   Administration.
     ---------------

     The Board of Directors (the "Board") shall supervise and administer the
Plan.  All questions concerning interpretation of the Plan or any options
granted under it shall be resolved by the Board and such resolution shall be
final and binding upon all persons having an interest in the Plan.  The Board
may, to the full extent permitted by or consistent with applicable laws or
regulations, delegate any or all of its powers under the Plan to a committee
appointed by the Board, and if a committee is so appointed, all references to
the Board in the Plan shall mean and relate to such committee.

3.   Participation in the Plan.
     --------------------------

     Directors of the Company who are not employees of the Company or any
subsidiary of the Company ("non-employee directors") shall be eligible to
receive options under the Plan.

4.   Stock Subject to the Plan.
     --------------------------

     (a)  The maximum number of shares of the Company's common stock, par value
$0.01 per share ("Common Stock"), which may be issued under the Plan shall be
500,000 shares, subject to adjustment as provided in Section 7.

     (b)  If any outstanding option under the Plan for any reason expires or is
terminated without having been exercised in full, the shares covered by the
unexercised portion of such option shall again become available for issuance
pursuant to the Plan.

     (c)  All options granted under the Plan shall be non-statutory options not
entitled to special tax treatment under Section 422 of the Internal Revenue Code
of 1986, as amended (the "Code").

     (d)  Shares issued under the Plan may consist in whole or in part of
authorized but unissued shares or treasury shares.
<PAGE>

5.   Terms,  Conditions and Form of Options.
     --------------------------------------

     Each option granted under the Plan shall be evidenced by a written
agreement in such form as the Board shall from time to time approve, which
agreements shall comply with and be subject to the following terms and
conditions:

     (a)(i)  Automatic Option Grant Dates.  Options shall automatically be
             ----------------------------
granted to all non-employee directors as follows:

             (x) each person who first becomes a non-employee director after the
closing date (the "Closing Date") of the registration of the Company's Common
Stock pursuant to an effective registration statement under the Securities Act
of 1933, as amended, shall be granted an option to purchase 25,000 shares of
Common Stock on the date of his or her initial election to the Board; and

             (y) each non-employee director shall be granted an option to
purchase 5,000 shares of Common Stock on the date of each Annual Meeting of
Stockholders of the Company following the Closing Date commencing with the 2001
Annual Meeting of Stockholders (other than a director who was initially elected
to the Board at any such Annual Meeting or, if previously, at any time after the
prior year's Annual Meeting of Stockholders), provided that he or she is serving
as a director immediately following the date of such Annual Meeting.

        (ii) Periodic Grants of Options.  Subject to execution by the non-
             --------------------------
employee director of an appropriate option agreement, the Board may grant
additional options to purchase a number of shares to be determined by the Board
in recognition of services provided by a non-employee director in his or her
capacity as a director, provided that such grants are in compliance with the
requirements of Rule 16b-3, as promulgated under the Securities Exchange Act of
1934, as amended from time to time.

Each date of grant of an option pursuant to this Section 5(a) is hereinafter
referred to as an "Option Grant Date."

     (b)     Option Exercise Price.  The option exercise price per share for
             ---------------------
each option granted under the Plan shall equal (i) the closing price on any
national securities exchange on which the Common Stock is listed, (ii) the
closing price of the Common Stock on the Nasdaq National Market or (iii) the
average of the closing bid and asked prices in the over-the-counter market,
whichever is applicable, as published in The Wall Street Journal, on the Option
                                         -----------------------
Grant Date. If no sales of Common Stock were made on the Option Grant Date, the
price of the Common Stock for purposes of clauses (i) and (ii) above shall be
the reported price for the next preceding day on which sales were made.

     (c)     Transferability of Options.  Except as the Board may otherwise
             --------------------------
determine or provide in an option granted under the Plan, any option granted
under the Plan to an optionee shall not be transferable by the optionee other
than by will or the laws of descent and distribution or pursuant to a qualified
domestic relations order as defined by the Code or Title I of the Employee
Retirement Income Security Act, or the rules thereunder, and shall be
exercisable

                                      -2-
<PAGE>

during the optionee's lifetime only by the optionee or the optionee's guardian
or legal representative. References to an optionee, to the extent relevant in
the context, shall include references to authorized transferees. Notwithstanding
the foregoing, options may be transferred by non-employee directors (i) to a
spouse, lineal ancestor or descendant, brother or sister of such Participant and
to any trust for the benefit of such persons and (ii) as gifts to charitable
organizations within the meaning of Section 501(c)(3) of the Code, so long as
any such transferee agrees to be bound by the terms of such written
instrument(s) as the Board shall determine.

     (d)    Vesting Period.
            --------------

        (i)    General.  Each option granted under the Plan pursuant to Section
               -------
5(a)(i)(x) above shall become exercisable (vest) in four equal annual
installments beginning on earlier of (A) the first anniversary of such Option
Grant Date and (B) the day before the Annual Meeting of Stockholders of the
applicable anniversary year .  Each option granted under the Plan pursuant to
Section 5(a)(i)(y) above shall become exercisable in full upon the Option Grant
Date.  No further vesting shall occur with respect to an option granted pursuant
to Section 5(a)(i)(x) after the optionee ceases to be a non-employee director of
the Company.  Each option granted under the Plan pursuant to Section 5(a)(ii)
above shall become exercisable on such terms as shall be determined by the Board
and set forth in the option agreement with the respective optionee.

        (ii)   Acceleration Upon Acquisition Event.  Notwithstanding the
               -----------------------------------
foregoing, each outstanding option granted under the Plan shall immediately
become exercisable in full immediately prior to the occurrence of an Acquisition
Event (as defined in Section 8) with respect to the Company.

        (iii)  Right to Receive Restricted Stock. Notwithstanding the provisions
               ---------------------------------
of Section 5(d)(i) above, the Board shall have the authority to grant options
(including options granted pursuant to Section 5(a)(i) above) which are
immediately exercisable subject to the Company's right to repurchase any
unvested shares of stock acquired by the optionee on exercise of an option in
the event such optionee's service as a director terminates for any reason.

     (e)    Termination.  Each option shall terminate, and may no longer be
            -----------
exercised, on the earlier of (i) the date ten years after the Option Grant Date
of such option or (ii) the first anniversary of the date on which the optionee
ceases to serve as a director of the Company; provided, however, that in the
event that a non-employee director has served as a director of the Company for
at least five years, each option held by such director shall terminate, and may
no longer be exercised, on the date ten years after the Option Grant Date of the
applicable option.

     (f)    Exercise Procedure.  An option may be exercised only by written
            ------------------
notice to the Company at its principal office accompanied by (i) payment in cash
or by certified or bank check of the full consideration for the shares as to
which they are exercised, (ii) delivery of outstanding shares of Common Stock
(which have been outstanding for at least six months) having a fair market value
on the last business day preceding the date of exercise equal to the option
exercise price, (iii) an irrevocable undertaking by a creditworthy broker to
deliver promptly to the

                                      -3-
<PAGE>

Company sufficient funds to pay the exercise price or delivery of irrevocable
instructions to a creditworthy broker to deliver promptly to the Company cash or
a check sufficient to pay the exercise price, (iv) delivery of a promissory note
to the Company on terms determined by the Board or (v) any combination of the
above permitted terms of payment.

     (g)  Exercise by Representative Following Death of Director.  An optionee,
          ------------------------------------------------------
by written notice to the Company, may designate one or more persons (and from
time to time change such designation), including his or her legal
representative, who, by reason of the optionee's death, shall acquire the right
to exercise all or a portion of the option. If the person or persons so
designated wish to exercise any portion of the option, they must do so within
the term of the option as provided herein. Any exercise by a representative
shall be subject to the provisions of the Plan.

6.   Limitation of Rights.
     ---------------------

     (a)  No Right to Continue as a Director.  Neither the Plan, nor the
          ----------------------------------
granting of an option nor any other action taken pursuant to the Plan, shall
constitute or be evidence of any agreement or understanding, express or implied,
that the Company will retain the optionee as a director for any period of time.

     (b)  No Stockholders' Rights for Options.  An optionee shall have no rights
          -----------------------------------
as a stockholder with respect to the shares covered by his or her option until
the date of the issuance to him or her of a stock certificate therefor, and no
adjustment will be made for dividends or other rights (except as provided in
Section 7) for which the record date is prior to the date such certificate is
issued.

     (c)  Compliance with Securities Laws.  Each option shall be subject to the
          -------------------------------
requirement that if, at any time, counsel to the Company shall determine that
the listing, registration or qualification of the shares subject to such option
upon any securities exchange or under any state or federal law, or the consent
or approval of any governmental or regulatory body, or the disclosure of non-
public information or the satisfaction of any other condition is necessary as a
condition of, or in connection with, the issuance or purchase of shares
thereunder, such option may not be exercised, in whole or in part, unless such
listing, registration, qualification, consent or approval, or satisfaction of
such condition shall have been effected or obtained on conditions acceptable to
the Board.  Nothing herein shall be deemed to require the Company to apply for
or to obtain such listing, registration or qualification, or to satisfy such
condition.

7.   Adjustment Provisions for Mergers, Recapitalizations and Related
     ----------------------------------------------------------------
Transactions.
-------------

     If, through or as a result of any merger, consolidation, reorganization,
recapitalization, reclassification, stock dividend, stock split, reverse stock
split, or other similar transaction, (i) the outstanding shares of Common Stock
are exchanged for a different number or kind of securities of the Company or of
another entity, or (ii) additional shares or new or different shares or other
securities of the Company or of another entity are distributed with respect to
such shares of Common Stock, the Board shall make an appropriate and
proportionate adjustment in (x) the

                                      -4-
<PAGE>

maximum number and kind of shares reserved for issuance under the Plan, (y) the
number and kind of shares or other securities subject to then outstanding
options under the Plan, and (z) the price for each share subject to any then
outstanding options under the Plan (without changing the aggregate purchase
price for such options), to the end that each option shall be exercisable, for
the same aggregate exercise price, for such securities as such option holder
would have held immediately following such event if he had exercised such option
immediately prior to such event. No fractional shares will be issued under the
Plan on account of any such adjustments.

8.   Acquisition Event.
     ------------------

     For purposes of the Plan, an "Acquisition Event" shall be deemed to have
occurred only if any of the following events occurs: (i) any merger or
consolidation which results in the voting securities of the Company outstanding
immediately prior thereto representing immediately thereafter (either by
remaining outstanding or by being converted into voting securities of the
surviving or acquiring entity) less than 50% of the combined voting power of the
voting securities of the Company or such surviving or acquiring entity
outstanding immediately after such merger or consolidation; (ii) any sale of all
or substantially all of the assets of the Company; or (iii) the complete
liquidation of the Company.

9.   Termination and Amendment of the Plan.
     --------------------------------------

     The Board may suspend or terminate the Plan or amend it in any respect
whatsoever.

10.  Notice.
     -------

     Any written notice to the Company required by any of the provisions of the
Plan shall be addressed to the Treasurer of the Company and shall become
effective when it is received.

11.  Governing Law.
     --------------

     The Plan and all determinations made and actions taken pursuant hereto
shall be governed by the internal laws of the State of Delaware (without regard
to any applicable conflicts of laws or principles).

12.  Effective Date.
     ---------------

     The Plan shall take effect upon the Closing Date.

                              Adopted by the Board of Directors on
                              _________, 2000.

                              Approved by the Stockholders on
                              _________, 2000.

                                      -5-<PAGE>
                                                                   EXHIBIT 10.73
                                  CURIS, INC.

                       2000 EMPLOYEE STOCK PURCHASE PLAN

                             _______________, 2000

     The purpose of this Plan is to provide eligible employees of Curis, Inc.
(the "Company") and certain of its subsidiaries with opportunities to purchase
shares of the Company's common stock, $__ par value (the "Common Stock"),
commencing on July 15, 2000. One million (1,000,000) shares of Common Stock in
the aggregate have been approved for this purpose. This Plan is intended to
qualify as an "employee stock purchase plan" as defined in Section 423 of the
Internal Revenue Code of 1986, as amended (the "Code"), and the regulations
promulgated thereunder, and shall be interpreted consistently therewith.

     1.   Administration.  The Plan will be administered by the Company's Board
          --------------
of Directors (the "Board") or by a committee appointed by the Board (the
"Committee"). The Board or the Committee has authority to make rules and
regulations for the administration of the Plan and its interpretation and
decisions with regard thereto shall be final and conclusive.

     2.   Eligibility.  All employees of the Company, including Directors who
          -----------
are employees, and all employees of any subsidiary of the Company (as defined in
Section 424(f) of the Code) designated by the Board or the Committee from time
to time (a "Designated Subsidiary"), are eligible to participate in any one or
more of the offerings of Options (as defined in Section 9) to purchase Common
Stock under the Plan provided that:

          (a)  they are customarily employed by the Company or a Designated
     Subsidiary for more than 20 hours a week and for more than five months in a
     calendar year; and

          (b)  they have been employed by (i) the Company or a Designated
     Subsidiary, (ii) Creative BioMolecules, Inc., Ontogeny, Inc. or
     Reprogenesis, Inc. or (iii) any combination of any entities listed in
     subsection (i) or (ii) above for at least 6 months prior to enrolling in
     the Plan; and

          (c)  they are employees of the Company or a Designated Subsidiary on
     the first day of the applicable Plan Period (as defined below).

     No employee may be granted an option hereunder if such employee,
immediately after the option is granted, owns 5% or more of the total combined
voting power or value of the stock of the Company or any subsidiary. For
purposes of the preceding sentence, the attribution rules of Section 424(d) of
the Code shall apply in determining the stock ownership of an employee, and all
stock which the employee has a contractual right to purchase shall be treated as
stock owned by the employee.

     3.   Offerings.  The Company will make one or more offerings ("Offerings")
          ---------
to employees to purchase stock under this Plan. Offerings will begin every six
months on June 15
<PAGE>

and December 15, or the first business day thereafter (the "Offering
Commencement Dates"). Each Offering Commencement Date will begin a six month
period (a "Plan Period") during which payroll deductions will be made and held
for the purchase of Common Stock at the end of the Plan Period. Notwithstanding
the foregoing, the first Plan Period shall begin on July 15, 2000 and end on
December 15, 2000. The Board or the Committee may, at its discretion, choose a
different Plan Period of twelve (12) months or less for subsequent Offerings.

     4.   Participation.  An employee eligible on the Offering Commencement Date
          -------------
of any Offering may participate in such Offering by completing and forwarding a
payroll deduction authorization form to the employee's appropriate payroll
office at least fifteen (15) days prior to the applicable Offering Commencement
Date. The form will authorize a regular payroll deduction from the Compensation
received by the employee during the Plan Period. Unless an employee files a new
form or withdraws from the Plan, his deductions and purchases will continue at
the same rate for future Offerings under the Plan as long as the Plan remains in
effect. The term "Compensation" means the amount of money reportable on the
employee's Federal Income Tax Withholding Statement, excluding overtime, shift
premium, incentive or bonus awards, allowances and reimbursements for expenses
such as relocation allowances for travel expenses, income or gains on the
exercise of Company stock options or stock appreciation rights, and similar
items, whether or not shown on the employee's Federal Income Tax Withholding
Statement, but including, in the case of salespersons, sales commissions to the
extent determined by the Board or the Committee.

     5.   Deductions.  The Company will maintain payroll deduction accounts for
          ----------
all participating employees. With respect to any Offering made under this Plan,
an employee may authorize a payroll deduction in any dollar amount up to a
maximum of 15% of the Compensation he or she receives during the Plan Period or
such shorter period during which deductions from payroll are made. Payroll
deductions may be at the rate of 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%,
12%, 13%, 14% or 15% of Compensation with any change in compensation during the
Plan Period to result in an automatic corresponding change in the dollar amount
withheld. The minimum payroll deduction is such percentage of compensation as
may be established from time to time by the Board or the Committee.

     No employee may be granted an Option (as defined in Section 9) which
permits his rights to purchase Common Stock under this Plan and any other
employee stock purchase plan (as defined in Section 423(b) of the Code) of the
Company and its subsidiaries, to accrue at a rate which exceeds $25,000 of the
fair market value of such Common Stock (determined at the Offering Commencement
Date of the Plan Period) for each calendar year in which the Option is
outstanding at any time.

     6.   Deduction Changes.  An employee may decrease or discontinue his
          -----------------
payroll deduction once during any Plan Period, by filing a new payroll deduction
authorization form.  However, an employee may not increase his payroll deduction
during a Plan Period.  If an employee elects to discontinue his payroll
deductions during a Plan Period, but does not elect to withdraw his funds
pursuant to Section 8 hereof, funds deducted prior to his election to
discontinue will be applied to the purchase of Common Stock on the Exercise Date
(as defined below).

                                      -2-
<PAGE>

     7.   Interest.  Interest will not be paid on any employee accounts, except
          --------
to the extent that the Board or the Committee, in its sole discretion, elects to
credit employee accounts with interest at such per annum rate as it may from
time to time determine.

     8.   Withdrawal of Funds.  An employee may at any time prior to the close
          -------------------
of business on the last business day in a Plan Period and for any reason
permanently draw out the balance accumulated in the employee's account and
thereby withdraw from participation in an Offering. Partial withdrawals are not
permitted. The employee may not begin participation again during the remainder
of the Plan Period.  The employee may participate in any subsequent Offering in
accordance with terms and conditions established by the Board or the Committee.

     9.   Purchase of Shares.  On the Offering Commencement Date of each Plan
          ------------------
Period, the Company will grant to each eligible employee who is then a
participant in the Plan an option ("Option") to purchase on the last business
day of such Plan Period (the "Exercise Date"), at the Option Price hereinafter
provided for, the largest number of whole shares of Common Stock of the Company
as does not exceed the number of shares determined by multiplying $2,083 by the
number of full months in the Offering Period and dividing the result by the
closing price (as defined below) on the Offering Commencement Date of such Plan
Period.

     The purchase price for each share purchased will be 85% of the closing
price of the Common Stock on (i) the first business day of such Plan Period or
(ii) the Exercise Date, whichever closing price shall be less. Such closing
price shall be (a) the closing price on any national securities exchange on
which the Common Stock is listed, (b) the closing price of the Common Stock on
the Nasdaq National Market or (c) the average of the closing bid and asked
prices in the over-the-counter-market, whichever is applicable, as published in
The Wall Street Journal.  If no sales of Common Stock were made on such a day,
-----------------------
the price of the Common Stock for purposes of clauses (a) and (b) above shall be
the reported price for the next preceding day on which sales were made.

     Each employee who continues to be a participant in the Plan on the Exercise
Date shall be deemed to have exercised his Option at the Option Price on such
date and shall be deemed to have purchased from the Company the number of full
shares of Common Stock reserved for the purpose of the Plan that his accumulated
payroll deductions on such date will pay for, but not in excess of the maximum
number determined in the manner set forth above.

     Any balance remaining in an employee's payroll deduction account at the end
of a Plan Period will be automatically refunded to the employee, except that any
balance which is less than the purchase price of one share of Common Stock will
be carried forward into the employee's payroll deduction account for the
following Offering, unless the employee elects not to participate in the
following Offering under the Plan, in which case the balance in the employee's
account shall be refunded.

     10.  Issuance of Certificates.  Certificates representing shares of Common
          ------------------------
Stock purchased under the Plan may be issued only in the name of the employee,
in the name of the employee and another person of legal age as joint tenants
with rights of survivorship, or (in the Company's sole discretion) in the name
of a brokerage firm, bank or other nominee holder

                                      -3-
<PAGE>

designated by the employee. The Company may, in its sole discretion and in
compliance with applicable laws, authorize the use of book entry registration of
shares in lieu of issuing stock certificates.

     11.  Rights on Retirement, Death or Termination of Employment.  In the
          --------------------------------------------------------
event of a participating employee's termination of employment prior to the last
business day of a Plan Period, no payroll deduction shall be taken from any pay
due and owing to an employee and the balance in the employee's account shall be
paid to the employee or, in the event of the employee's death, (a) to a
beneficiary previously designated in a revocable notice signed by the employee
(with any spousal consent required under state law) or (b) in the absence of
such a designated beneficiary, to the executor or administrator of the
employee's estate or (c) if no such executor or administrator has been appointed
to the knowledge of the Company, to such other person(s) as the Company may, in
its discretion, designate.  If, prior to the last business day of the Plan
Period, the Designated Subsidiary by which an employee is employed shall cease
to be a subsidiary of the Company, or if the employee is transferred to a
subsidiary of the Company that is not a Designated Subsidiary, the employee
shall be deemed to have terminated employment for the purposes of this Plan.

     12.  Optionees Not Stockholders.  Neither the granting of an Option to an
          --------------------------
employee nor the deductions from his pay shall constitute such employee a
stockholder of the shares of Common Stock covered by an Option under this Plan
until such shares have been purchased by and issued to him.

     13.  Rights Not Transferable.  Rights under this Plan are not transferable
          -----------------------
by a participating employee other than by will or the laws of descent and
distribution, and are exercisable during the employee's lifetime only by the
employee.

     14.  Application of Funds.  All funds received or held by the Company under
          --------------------
this Plan may be combined with other corporate funds and may be used for any
corporate purpose.

     15.  Adjustment in Case of Changes Affecting Common Stock.  In the event of
          ----------------------------------------------------
a subdivision of outstanding shares of Common Stock, or the payment of a
dividend in Common Stock, the number of shares approved for this Plan, and the
share limitation set forth in Section 9, shall be increased proportionately, and
such other adjustment shall be made as may be deemed equitable by the Board or
the Committee.  In the event of any other change affecting the Common Stock,
such adjustment shall be made as may be deemed equitable by the Board or the
Committee to give proper effect to such event.

     16.  Merger.  If the Company shall at any time merge or consolidate with
          ------
another corporation and the holders of the capital stock of the Company
immediately prior to such merger or consolidation continue to hold at least 80%
by voting power of the capital stock of the surviving corporation ("Continuity
of Control"), the holder of each Option then outstanding will thereafter be
entitled to receive at the next Exercise Date upon the exercise of such Option
for each share as to which such Option shall be exercised the securities or
property which a holder of one share of the Common Stock was entitled to upon
and at the time of such merger or consolidation, and the Board or the Committee
shall take such steps in connection with such

                                      -4-
<PAGE>

merger or consolidation as the Board or the Committee shall deem necessary to
assure that the provisions of Section 15 shall thereafter be applicable, as
nearly as reasonably may be, in relation to the said securities or property as
to which such holder of such Option might thereafter be entitled to receive
thereunder.

     In the event of a merger or consolidation of the Company with or into
another corporation which does not involve Continuity of Control, or of a sale
of all or substantially all of the assets of the Company while unexercised
Options remain outstanding under the Plan, (a) subject to the provisions of
clauses (b) and (c), after the effective date of such transaction, each holder
of an outstanding Option shall be entitled, upon exercise of such Option, to
receive in lieu of shares of Common Stock, shares of such stock or other
securities as the holders of shares of Common Stock received pursuant to the
terms of such transaction; or (b) all outstanding Options may be cancelled by
the Board or the Committee as of a date prior to the effective date of any such
transaction and all payroll deductions shall be paid out to the participating
employees; or (c) all outstanding Options may be cancelled by the Board or the
Committee as of the effective date of any such transaction, provided that notice
of such cancellation shall be given to each holder of an Option, and each holder
of an Option shall have the right to exercise such Option in full based on
payroll deductions then credited to his account as of a date determined by the
Board or the Committee, which date shall not be less than ten (10) days
preceding the effective date of such transaction.

     17.  Amendment of the Plan.  The Board may at any time, and from time to
          ---------------------
time, amend this Plan in any respect, except that (a) if the approval of any
such amendment by the shareholders of the Company is required by Section 423 of
the Code, such amendment shall not be effected without such approval, and (b) in
no event may any amendment be made which would cause the Plan to fail to comply
with Section 423 of the Code.

     18.  Insufficient Shares.  In the event that the total number of shares of
          -------------------
Common Stock specified in elections to be purchased under any Offering plus the
number of shares purchased under previous Offerings under this Plan exceeds the
maximum number of shares issuable under this Plan, the Board or the Committee
will allot the shares then available on a pro rata basis.

     19.  Termination of the Plan.  This Plan may be terminated at any time by
          -----------------------
the Board. Upon termination of this Plan all amounts in the accounts of
participating employees shall be promptly refunded.

     20.  Governmental Regulations. The Company's obligation to sell and deliver
          ------------------------
Common Stock under this Plan is subject to listing on a national stock exchange
or quotation on the Nasdaq National Market (to the extent the Common Stock is
then so listed or quoted) and the approval of all governmental authorities
required in connection with the authorization, issuance or sale of such stock.

     21.  Governing Law.  The Plan shall be governed by Delaware law except to
          -------------
the extent that such law is preempted by federal law.

                                      -5-
<PAGE>

     22.  Issuance of Shares.  Shares may be issued upon exercise of an Option
          ------------------
from authorized but unissued Common Stock, from shares held in the
treasury of the Company, or from any other proper source.

     23.  Notification upon Sale of Shares.  Each employee agrees, by entering
          --------------------------------
the Plan, to promptly give the Company notice of any disposition of shares
purchased under the Plan where such disposition occurs within two years after
the date of grant of the Option pursuant to which such shares were purchased.

     24.  Effective Date and Approval of Shareholders.  The Plan shall take
          -------------------------------------------
effect on __________________, 2000 subject to approval by the shareholders of
the Company as required by Section 423 of the Code, which approval must occur
within twelve months of the adoption of the Plan by the Board.

                              Adopted by the Board of Directors

                              on _______________, 2000

                              Approved by the stockholders

                              on _______________, 2000

                                      -6-

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