46 
The Philippine Journal of Science 
1913 
apex pubescent, as are the linear-spatulate or slenderly club- 
shaped, 2 to 3 mm long lobes. Corolla about 10 mm long, gla- 
brous, the lobes 5, narrowly oblong, obtuse, about 3 mm in 
length. 
Mindanao, District of Zamboanga, Port Banga, For. Bur. 9183 Whitford 
& Hutchinson, January, 1908. 
A strongly marked species, distinguishable by its very thickly coriaceous, 
prominently veined, oblong-ovate leaves. 
OLDENLANDIA Linnaeus 
OLDENLANDIA OVATIFOLIA (Cav.) DC. Prodr. 4 (1830) 427. 
Hedyotis ovatifolia Cav. Ic. 6 (1801) 52, t. 753. 
Oldenlandia nudicauUs Roth Nov. PI. Sp. (1821) 95; Hook. f. FI. 
Brit. Ind. 3 (1880) 70. 
The oldest valid name for this species is here accepted. The species 
is represented by the following Philippine material: Luzon, Province of 
Bataan, Lamao River, Merrill 3303, Williams 65, 12i: Province of Laguna, 
Los Baiios, Hallier s. n. 
India to the Malay Peninsula and Java. 
OPHIORRHIZA Linnaeus 
OPHIORRHI2A UNDULATA sp. nov. 
Planta erecta, simplex vel leviter ramosa, circiter 15 cm alta, 
caulibus brunneo-pubescentibus ; foliis lanceolatis, acuminatis, 
margine undulatis, usque ad 9 cm longis, subtus pallidis ; floribus 
paucis, ebracteolatis, circiter 4.5 mm longis; capsulis 4 mm longis, 
8 mm latis. 
An erect, simple or slightly branched herbaceous plant about 
15 cm high, the stems slender, distinctly pubescent with short, 
more or less curled, brownish hairs. Leaves lanceolate, about 
equally narrowed at both ends, acuminate, base acute or acu- 
minate, those of each pair very unequal in size, the larger ones 
3 to 9 cm long, 0.7 to 1.7 cm wide, their petioles about 1 cm 
long, the smaller ones 1.5 to 3.5 cm long, 4 to 8 mm wide, sub- 
sessile or shortly petioled, margins undulate, the upper surface 
da.rk-olivaceous when dry, the lower pale-green or somewhat 
whitish. Flowers terminal, few, white, ebracteolate, their pedi- 
cels about 1 mm long. Calyx ovoid, 1.5 mm long, the teeth 5, 
linear-lanceolate, 0.8 mm long. Corolla white, tubular, the tube 
about 3 mm long, slightly enlarged at the base; lobes oblong, 
obtuse, 1.5 mm long. Filaments 2 mm long, slender; anthers 
oblong. Capsule compressed, about 4 mm long, 8 mm wide. 
Mindanao, District of Davao, Mount Binutun, Weber 1H5, October 26, 
1911, on banks of small streams in bamboo forests. 
