XIII, c, 5 Merrill: Noteworthy Philippine Plants 285 



Philippines it differs, among other characters, in its decidedly larger, 

 broader, more numerously nerved leaves. 



HORSFIELDIA Willdenow 

 HORSFIELDIA CONFERTIFLORA sp. nov. 



Arbor circiter 25 m alta, inflorescentiis exceptis glabra; 

 ramis ramulisque teretibus, lenticellatis ; foliis chartaceis vel 

 subcoriaceis, oblongis, usque ad 25 cm longis, breviter acumi- 

 natis, nervis utrinque circiter 18, subtus perspicuis; inflores- 

 centiis s e axillis defoliatis, paniculatis, usque ad 13 cm longis, 

 plus minusve f errugineo-pubescentibus ; floribus pedicellatis, 3-, 

 rariter 4-meris, circiter 1.7 mm diametro, in ramulis ultimis 

 dense confertis. 



A tree reaching a height of about 25 m, glabrous except the 

 inflorescence. Branches terete, stout, brownish and striate when 

 dry, lenticellate, the branchlets also terete, glabrous. Leaves 

 firmly chartaceous or subcoriaceous, oblong, 17 to 25 cm long, 

 4.5 to 8 cm wide, slightly shining and usually more or less 

 brownish when dry, the apex shortly acuminate, the base acute 

 or obtuse ; nerves about 18 on each side of the midrib, prominent 

 beneath, anastomosing, the reticulations obsolete or nearly so, 

 very lax; petioles about 1 cm long. Staminate inflorescence 

 from the axils of fallen leaves, paniculate, pyramidal, 10 to 13 

 cm long, the lower branches spreading, often 5 cm long, the 

 upper few gradually shorter, the rachis, branches and especially 

 the ultimate branchlets more or less ferruginous-pubescent, the 

 flowers densely crowded on the ultimate branchlets, their pedicels 

 less than 1 mm long. Buds globose, less than 2 mm in diameter. 

 Mature flowers 1.5 to 1.8 mm long, 3-, rarely 4-merous, the lobes 

 broadly ovate, acute, about 1 mm long, quite glabrous. Stamens 

 about 14, the anthers entirely united into a sessile, globose or 

 depressed-globose mass about 1 mm in diameter. Immature 

 fruits oblong, about 2 mm long, glabrous. 



Luzon, Bataan Province, Lamao River, For. Bur. 2^87 Borden, January, 

 1905 (sterile), For. Bur. 7509 Curran, September, 1907: Rizal Province, 

 Bosoboso, For. Bur. 3183 Ahern's collector, July, 1905 (tsrpe) : Tayabas 

 Province, Mount Banahao, For. Bur. 8049 Curran & Merrift, November, 

 1907. 



I am disposed to place this species in the section Pyrrhosa, allied to 

 H. kingii, H. amygdalina, and H. glabra. It strongly resembles, however, 

 H. irya and allied species, but the anthers seem to be entirely united, and 

 the flowers are never 2-merous. This is the form previously identified by 

 me as Horsfieldia ardisiifolia Warb.,* the determination having been made 



' Philip. Journ. Sci. 1 (1906) Suppl. 55. 



