264 
MERRILL. 
HYPOLYTRUM L. C. Rich. 
Hypolytrum latifolium L. C. Rich, in Pers. Syn. 1 (1805) 70; Clarke in 
Philip. Journ. Sci. Bot. 2 (1907) 108. 
In forests at 500 m. alt. (No. 4345 Merritt ) June, 1906. 
Widely distributed in the Philippines. 
British India to Formosa, Malaya, Queensland and the Yiti Islands. 
PALM2E. 
PI NANG A Blume. 
Pinanga elmerii Becc. in Webbia (1905) 323. 
In forests at 900 m. alt. (No. 5555). 
Previously known only from the mountains of northern and central Luzon. 
Pinanga sp. 
In forests at 1,100 m. alt. (No. 5680) ; also collected by Merritt at an altitude 
of 1,500 m. in June, 1906 (No. 4468). 
Pinanga maculata Porte, was observed in the forest at various places but all 
the specimens seen were without fruits or flowers. 
Other than species of Pinanga, no other palms, except Calamus, were observed 
on the trip. Calamus is represented on Halcon by several species, but no spec- 
imens were found with fruit or flowers. 
ARACE2E. 
ARISAEM A Linn. 
Arisaema polyphylla (Blanco) Merr. in Govt. Lab. Publ. 27 (1905) 90. 
In forests at 1,800 m. alt. (No. 6155). 
Endemic in the Philippines. 
SPATHIPHYLLUM Schott. 
Spathiphyllum commutatum Schott, in Oest. Bot. Wochenbl. (1857) 158. 
In forested ravines along a small stream at 700 m. alt. (No. 5486). 
Luzon to Mindanao. 
Celebes and Amboina. 
CENTROLEPIDACE2E. 
CENTROLEPIS Labill. 
Centrolepis philippinensis Merrill n. sp. 
Perennis, dense caespitosa, multifoliata, foliis setaceis, ad 1 cm. longis, 
basi pilosis, pedunculo 1 ad 2 cm. longo, glnmis 2, inaequalibus, lan- 
ceolatis, 4 ad 5 mm. longis, spiculis solitariis, 4-floris; stamen; ovarium 
2-loculare. 
Perennial, densely csespitose forming close mats or tufts, the stems 
somewhat branched, the individual plants 3 to 4 cm. high, the usually 
hemispherical tufts frequently 10 cm. or more in diameter. Leaves very 
numerous, setaceous, glabrous above, about 1 cm, long, the lower portions 
pilose with weak white hairs. Peduncles 1 to 2 cm. long, glabrous, 
terminal, each bearing 1 spikelet about 5 mm. long. Spikelets 4-flowered, 
