82 The Philippine Journal of Science 1915 
oblong-ovate to ovate-lanceolate, chartaceous or subcoriaceous 
when dry, usually olivaceous, 3.5 to 5 cm long, 1.3 to 1.6 cm 
wide, the base acute, the apex slenderly and sharply acuminate; 
lateral nerves 3 or 4 on each side of the midrib, ascending, very 
slender, often obscure; petioles about 2 mm long. Flowers 
solitary, axillary, their pedicels rather densely hirsute, about 6 
mm long. Calyx cleft to the base into 5, narrowly lanceolate, 
acuminate or blunt lobes which are somewhat hirsute, about 7 
mm long, 1.2 mm wide, 3-nerved. Corolla red, somewhat curved 
and ventricose, 3.5 cm long, hirsute outside, the mouth somewhat 
oblique, the lower 3 lobes broadly ovate, rounded, about 6 mm 
in diameter, the upper two about 4 mm in diameter. Disk 
glabrous, truncate, about 2 mm long. Ovary glabrous; style 
hirsute. Anthers 2 mm long, connate, included, the filaments as 
long as the corolla-tube. 
Luzon, Province of Nueva Vizcaya, near Ixnugan, Bur. Sci. 20075 
McGregor, January, 1913. 
Manifestly closely allied to Trichosporum rizalense, which it closely 
resembles, differing in the indicated floral and vegetative characters. 
TRICHOSPORUM RIZALENSE sp. nov. § Haplotrichium. 
Species T. philippinense simillima et affinis, differt floribus 
majoribus, circiter 3 cm longis, extus parce hirsutis, nervis 
lateralibus vix obsoletis, tenuibus, adscendentibus. 
A scandent, slender, epiphyte, glabrous except the inflores- 
cence. Branches and branchlets slender, terete, mostly light 
gray. Leaves opposite, when fresh fleshy, when dry coriaceous, 
elliptic-ovate, 3.5 to 4 cm long, 1.5 to 2 cm wide, the base acute, 
the apex acute or slightly acuminate, rather pale when dry; 
lateral nerves slender, ascending, about 4 on each side of the 
midrib, sometimes indistinct; petioles about 3 mm long. 
Flowers solitary, axillary, their pedicels slender, hirsute, 5 to 
6 mm long. Calyx cleft to the base into 5, lanceolate, obtuse, 
3-nerved lobes 5 to 6 mm long, about 1.4 mm wide, sparingly 
hirsute. Corolla red, somewhat curved, 3 cm long, sparingly 
hirsute outside, narrowed below, the mouth somewhat oblique, 
2-lipped, lobes of the upper lip broadly rounded-ovate, about 4 
mm in diameter, of the lower lip about 5 mm in diameter. Disk 
glabrous, truncate, 1.5 mm long. Ovary glabrous; style hirsute. 
Anthers included, connate in pairs, 2 mm long, the filaments as 
long as the corolla. 
Luzon, Province of Rizal, Mount Canumay, Bur. Sci. 13775 Ramos, 
October, 1911. 
In general appearance greatly resembling Trichosporum philippinense, 
differing however, among other characters, in its larger hirsute flowers. 
