264 MKUUILL. 
HYPOLYTRUM L. C. Rich. 
Hypolytrum latifolium L. C. Ricli. in Ters. Syii. 1 (1805) 70; Clarke in 
Philip. Journ. Sci. Bot. 2 (1007) 108. 
In forests at 500 m. alt. (No. 4345 Mcrritt) June, 190G. 
Widely distributed in the Philippines. 
British India to Formosa, Malaya, Queunbland and the Viti Islands. 
PINANGA Bluuxe. 
Pinanga elmerii Becc. in Webbia (1905) 323. 
r 
In forests at 900 ni. alt. (No. 5555). 
Previously known only from the mountains of northern and central Luzon. 
Pinanga sp. 
In forests at 1,100 m. alt. (Na 5680) ; also collected by Mcrntt at an altitude 
of 1,500 m. in June, 1906 (No. 4468). 
Pinanga maculnia Porte, was observed in the forest at various places but all 
file spec'ijiiens seen were witliout 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. 
ARACEJi:! 
ARISAEMA Linn. 
Arisaema polyphylia (Blanco) Merr. in Govt. Lab. Publ. 27 (1905) 90. 
In forests at 1,800 ni. alt. (No. 6155). 
Endemic in the Philippines. 
SPATHIPHYLLUM Schott. 
CENTEOLEPIDACE^. 
CENTROLEPIS Labill. 
Centrolepis philippinensis Merrill n. sp. 
Perennis^ dense caespito?a^ niultifoliataj foliis setaceis, ad 1 cm. longis^ 
basi pilosis, pediinculo 1 ad 2 cm. longo, gluinis 2, iiiaeqmdibus, laii- 
ceolatis, 4 ad 5 imii. longis, spiculia solitariis, 4-flori^; stumon; ovarium 
;;3-Ioeulare. 
Perennial, densely caespitose forming close mats or tufts, the stems 
somewhat branched, the individual plants 3 to 4 cm. high, the usually 
hemispherical tiift^ 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. Ped ancles 1 to 3 cm. long, glabrous, 
terminal, each bearing 1 spikelet about 5 mm. long. Spikelets 4-flowered, 
i 
I 
Spathiphyllum commutatum Schott. in Oest. Bot. Wochenbl. (1857) 158. , j 
In forested ravines along a small stream at 700 m. alt. (No. 5486). 
Luzon to Mindnnao. 
Celebes and Amboina. 
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