PHILIPPINE DIPTEROCARPACEAE. 267 Leaves glabrous, ovate, acuminate, margin undulate or entire; secondary nerves 6 pairs; tertiary nerves parallel, not conspicuous, joined by reticulate veins. Anthers linear; appendix of connective very short. Ovary glabrous; style cylindric, articulate with ovary, stigma minutely papillose. Wings of fruiting-calyx twisted, very unequal, the two largest 7 to 13 cm long, with 10 to 12 prominent nerves, the third 6.5 cm long, the others much smaller. Fruit tomentose, acuminate ; base of fruiting-calyx pubescent. The number of secondary nerves is rather variable as is also the size of the fruit. This is the commonest and most widely distributed species of the family in the Islands. It is probable that it occurs in every province. Luzon, Province of Cagayan, For. Bur. 7088 Klemme, For. Bur. 14726, 14734, Darling, For. Bur. 16930, 16963, 17163, 17186 Curran: Province of Isabela, For. Bur. 14840 Darling, For. Bur. 18557 Alvarez: Province of Ilocos Norte, For. Bur. 13823, 13854, 13923, 14002 Merrit & Darling: Province of Ilocos Sur, For. Bur. 14092 Merritt & Darling: Province of Abra, For. Bur. 14663 Darling: District of Bontoc, For. Bur. 17013 Curran: Subprovince of Bengnet, For. Bur. 10804 Curran: Province of Nueva Vizcaya, For. Bur. 18411 Alvarez: Province of Pangasinan, For. Bur. 8282 Curran & Merritt, For. Bur. 14364 Villamil: Province of Nueva Ecija, For. Bur. 8493 Curran, Bur. Sci. 12297 Foxworthy, For. Bur. 22388 Alvarez: Province of Tarlac, Vidal 79: Province of Bulacan, For. Bur. 11152 Aguilar, Bur. Sci. 12203 Foxworthy : Province of Zainbales, For. Bur 5810, 5904, 6916 Curran, For. Bur. 19462 Agama: Province of Bataan, For. Bur. 504 511, 519, 534, 536, 538, 605, 598, Barnes. Dec. Phil. For. Fl. 72 Barnes, Jan. 1904. in flower, For. Bur. 650, 653 Borden, April 1904, in flower, Whitford 293, May 1904, in flower, For. Bur. 677 Borden, May 1904, in flower For. Bur. 821 Borden, June 1904, with immature fruit, For. Bur. 1748 Border, Aug. 1904, mature fruit. Bur. Sci. 1555, 1626 Foxworthy, For. Bur. 5281,5961, 17609 Curran, For. Bur. 6367 Curran, Mar. 1907, in flower: Province of Rizal, Vidal 987, 2167, Merrill 2697 Ramos, June 1903 in flower, For. Bur. 2970 Ahern’s coll., Apr. 1905, in fruit, For. Bur. 3199 Ahern’s coll., July 1905, in flower, Bur. Sci. 109 Foxworthy, Bur. Sci. 1464 Ramos, Bur. Sci. 3258 Ramos, June 1907, in fruit, For. Bur. 10009, 10036, 10042 bis Curran, Bur. Sci. 4635 Ramos: Province of La Laguna, For. Bur. 7902 Curran & Merrit, For. Bur. 22232 Mariano: Province of Tayabas, For. Bur. 6070 Kobbe, For. Bur. 10175, 10398 Curran, For. Bur. 11504 Whitford, For. Bur. 14990, 18690 Darling, Oct., Dec. 1909, in fruit: Province of Camarines, For. Bur. 10447, 10735 Curran, For. Bur. 10659 Curran, June 1908, in flower, For. Bur. 10721 Curran, July 1908, in flower, For. Bur. 13356 Aguilar, For. Bur. 14337 Aguilar, July 1909, with immature fruit: Province of Albay, For. Bur. 10593, 10615 Curran: Province of Sorsogon, For. Bur. 5168 Bridges, For. Bur. 10559 Curran, June 1908, in flower. Polillo, For. Bur. 3217 Hagger, July 1904, fruit, Bur. Sci. 6831 Robinson, Aug. 1909, fruit, Bur. Sci. 10379 McGregor. Marinduque, For. Bur. 12155 Rosenbluth. Masbate, Merrill 2772 Barnes, June 1903, in flower. Mindoro, Whitford 1395, For. Bur. 4480 Merritt, June 1906, in flower, For. Bur. 9910 Merrit, April 1908, immature fruit, For. Bur. 8682, 12012 Merrit. Samar, For. Bur. 12853, 12651 Rosenbluth. Negros, For. Bur. 17349, 17417, 17487 Curran, For. Bur. 17367, 17432 Curran, Sept. 1909, in fruit. Mindanao, Subprovince of Agusan, For. Bur. 7597 Hutchinson: District of Davao, For. Bur. 11564 Whitford: District of Lanao. Mrs. Cle-