250 THE VOYAGE OF H.M.S. CHALLENGER. 



AHOIDE.E. 



Pothos rumphii, Scbott var. 1 



Pothos rumphii, Schott var. ? DC, Monogr. Phanerog., ii. p. 89. 

 Scindapsus rumphii, Presl, Epim., p. 241 ; Miq., El. Ind. Bat., iii. p. 185. 



Admiralty Islands. — The specimens of this aroid are excellent, but we have only 

 seen a single imperfect specimen of Pothos rumphii, which is from Java. It is a more 

 robust plant than the present, and the two may be distinct species. 



Pothos sp. 



Admiralty Islands. — Barren branches of an extremely slender species with small 

 leaves. It belongs to the group having winged petioles as large as, or larger than the blade. 

 The same species, in the same condition, was collected in New Guinea. 



CYPERACE.E. 



Hypolytrum latifolium, Rich. 



llijpohjtrum latifolium, Rich. ; Benth., Fl. Austr., vii. p. 339 ; Seem., Fl. Vit., p. 317. 



Admiralty Islands. — Widely dispersed in Tropical Asia and Africa ; also occurring 

 in North-eastern Australia, and in Polynesia it extends eastward to the Fiji Islands. A 

 very closely allied species inhabits Tropical America. 



Scleria sumatrensis, Retz 1 



Scleria sumatrensis, Retz? Miq., Fl. Ind. Bat., iii. p. 343. 



Admiralty Islands. — The specimen is very young, and may not belong to this 

 species. 



GRAMINE^E. 



Oplismenus compositus, Beauv. 



Oplismenus compositus, Beauv.; Benth., Fl. Austr., vii. p. 491 ; Nadeaud, Enum. PI. Tahiti, p. 31. 

 Oiiliopogon compositus, R. Br. ; Miq., FL Ind. Bat., iii. p. 443. 



Admiralty Islands. — Generally spread in warm countries, including Polynesia, east- 

 ward to Pitcairn and the Sandwich Islands. Of this genus there are several other widely 

 diffused species, the numerous forms of which are very difficult of classification. 



Ischaemum muticum, Linn. 



Ischa'Jiium muticum, Linn. ; Benth., Fl. Austr., vii. p. 520. 



Admiralty Islands. — Widely spread in Tropical Asia and Western Polynesia, and 

 also found on the north-eastern coast of Australia. The genus is a considerable one, most 

 of the species being Asiatic or African, though a few are found in America. 



