The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1905-11-23

these toadStoOs. You
quite complicated structure consisting of long white
stalk with fiat expansion at the top On the side
of this cap you get number of fiat gls hanging
down and is on these gs amelae that the spores OF
toadstool borne Now have the West Indies as
said before very similar disease this Hawaii
and they have very similar disease in They
by fungus having this modification We inclined to think
for many that the reproductive organs Hawaiian
fungus VIII be- when found either identical with those of the
West Indian root fungus very similar and the Division will
that found growing about base OF Whenever
found this fungus generally growing from or
soil ~ "
Mr. Thurston1How big that toadstool natural sizea
Mr. Lewton- Braln-Ihe specimens have found
than inch the cap That quite early in the
morning when they expanded These are not
Indies did them more than three o. four times in the
field them than three times in the
to think However trying do all the
tories in this Territory obtain modification white
myceunl of fungus and tell whether
have the disease the West Indies until
get qualifications and until we are SIRE that te M
qualifications of that fungus of tell whether
Our disease the that of Java the of
the West Indies and i OF importance that be-
cause it the need be particular importing
canes from those places if is the should be
very importing SO that we do not introduce the disease
That is the practical point of OF scientific
interest as well We trying all get these
on some noculatlon experiments and hope
fish the results later
Mr. D. Forbes-How fungus spread from one place
to the other is by of these white threads you speak of?
Mr. Lewon- Bra1lThis fungus, was going on to ex-
plain spreads nearly entirely by mycelm lust like
the sugar plant which has propagated hundreds of
years by cuttings and by seed is propagaed by its
nyceu especially through the soil you carry away cutting
with of these dead you CARRYING away the
root fungus And would say that fungus propagates
e almost exclusively through its myceum Even in the West
Indies and Java where the qualifications fungus does
not spread much through its Spores but by its mycelum
ing the fungus = NN'
now pass describe of diseased root This
can be seen by examining longitudinal section
stfed roots which have mentioned before The cap ap-
pears atter its cells show graduation living cells
the eristem outside but thew all aDpear
dead and aened Evidently being formed at the
e[sem to replace those worn away in front The growing
point itself also looks unhealthy Its cells full proto
Pasm and division taking place actively By examining
very closely discovers and among the cells the root cap
and merem the hphae Of the fungus These
cap m from the soil and pass from there nleristem
cells in the by Cobb AS the outer
part OF the OF the tip composed of dead cells which
hypae Here the fungus takes the food that IS being ny
by the plant away from the dividing cells thus starving them
and retardng their activity Of dividing take
up good dfa OF the TODD supplied by the plant which
where the food is supplied the dividing cells finally
the killed and the growth of the root ceases Hence
nasmuch cells formed except from the division
OF cells already stence if those cells destroyed killed
by the fungus mycem, nothing with which to form new
cells and that root dies All growth has
because there is nothing left new cells Hence
as the old root hairs die formed
will be produced When growth stops activity
root at an end The hypae spread beyond
growing point that is they do the part
root but you the vital part of all attacks the
actual dividing region where cells are formed When
root has stopped growing be developed
ITS place he cane has been to expense were
The old roots decay naturally have been killed fungus
yceun and the from developing
the fungus this continues destroy them If goes
while the plant going feel beyond
immediate neghborhood of the attack reason that the
leaves do not get the of require
OF mineral salts absorbed from the soil consider
able portion of the system of affected water
supply carried to the leaves through the from the
also be affected which explains why dry up
and stand upright 1t is of of
hey show that they need of which get
from the usual channes-as the commences
shut up shop 1t is not healthy. But only the water
supply essened considerably bn also the supply of gas
air begins to be off, owing the leaves being
standing upright hence the free of pores
is shut off which lessons the of sugar
food formed in the leaves The leaves
and then IT the fungus continues the upper hand the whole
plant suffers from starvation The system poor
not take enough mineral
leaves not developed vigorously they should
normal conditions of receiving
through the
have the