x, c, 4 Merrill: Studies on Philippine Anonaceae, 1 245 
shining, dark brown fruits, 2 to 3 cm long, 1.2 to 1.5 cm in 
diameter. 
LUZON, Province of Sorsogon, Sugod Bay, For. Bur. 5160 Bridges (type), 
August 6, 1906, in forests from sea level to an altitude of 75 meters: Prov- 
ince of Laguna, Bur. Sci. 21989 Ramos, October, 1913, in fruit: Province of 
Cagayan, For. Bur. 20U72 Barros, July, 1913. Samar, Phil. PI. 1660 Ravios 
(as P. ramosii) . 
A species well characterized by its numerous flowers which are fascicled 
along the branches below the leaves and by its especially narrow and long 
subequal petals. 
POLYALTHIA ZA M BO A N G A E N St S sp. nov. § Monoon. 
Species P. latariflorae similis et affinis differt foliis tenuioribus, 
venis iateralibus obscure anastomosantibus vix evanescentibus, 
floribus pauilo longioribus. 
A tree about 10 m high, nearly glabrous. Branches terete, 
lenticellate, glabrous, the youngest branchlets somewhat puber- 
ulent and the terminal buds ferruginous-pubescent. Leaves 
oblong, chartaceous, 16 to 18 cm long, 6 to 7 cm wide, glabrous, 
the base rounded, the apex acuminate, shining on both surfaces, 
the lower a little paler than the upper; lateral nerves about 16 
on each side of the midrib, prominent on the lower surface, 
curved upward, faintly anastomosing near the margins, the 
reticulations very fine, indistinct; petioles 5 to 7 mm long, 
glabrous. Flowers greenish-yellow, very fragrant, fascicled on 
the branches of the previous year below the leaves, the nodules 
bearing the flowers pubescent, each with about three flowers 
developed at one time, but with additional small buds present. 
Pedicels 3 to 4.5 cm long, slender, slightly pubescent, usually 
with an orbicular, obtuse, pubescent bracteole about 1.5 mm 
long at about the middle. Sepals broadly ovate or reniform, pu- 
bescent, 4 to 5 mm wide, wider than long. Petals flat, lanceolate, 
narrowed gradually to the acute or blunt apex, 5 to 6 cm long, 
4 to 6 mm wide, slightly pubescent on the back in the lower 
part, the outer three a little shorter and narrower than the inner 
three. Stamens indefinite, about 1 mm long, connectives trun- 
cate, the torus convex, pubescent. Carpels indefinite, oblong, 
about 1 mm long, pubescent, with a single basal ovule. 
Mindanao, District of Zamboanga, near Margosatubig, For. Bur. 13276 
Foxworthy, DeMesa, & Villamil, May 11, 1912, in hill forests, altitude about 
120 meters. Locally known to the Moros as malacayang lupo. 
A well-marked species but manifestly closely allied to the Malayan 
Polyalthia lateriflora King, which it greatly resembles. It is distinguish- 
able by its thinner leaves, different venation, obscure and fine ultimate 
reticulations, and somewhat longer flowers. 
