THE FLORA HONGKONGENSIS. 131 
In dry, sandy and gravelly places. Found also in the Indian 
peninsula, Ceylon, and the Malay archipelago. 
41. Cyperus nigro-viridis, Thw. Enum. Pl. Zeyl. 345. 
Found in Hongkong by the late Dr. Harland, and on the adja- 
cent continent by myself. A native also of the Indian peninsula 
and Ceylon. 
*Cyperus pennatus, Lam., 
is, according to Mr. Kurz (Journ. As. Soc. Beng. xxxix. 85), 
Heyne's C. pallidus; and if so, the name is very good. The plant 
taken for this by Escnbeck (Wight, Contrib. 79), according to a 
specimen from Dr. Thwaites (C. P. 8559), is quite different, and 
the name is not appropriate to it. 
45. Scirpus plantagineus, Rottb. (=Eleocharis plantaginea, R. Br.; 
Kunth, Enum. Plant. ii. 153; Steud. Syn. Pl. Cyp. 82.) 
In ditches on the racecourse, Happy Valley, plentiful; gathered 
by me in November 1862. Found in India, Ceylon, the Malayan 
islands, Madagasear, and Japan. I found this plant growing in 
sea-sand on the Island of Ku lung su, Amoy. 
46. Scirpus (Eleocharis) laxiflorus, Thw. Enum. Pl. Zeyl. 435. 
In the swamp in the Happy-Valley woods; gathered by Mr. 
Sampson in July 1866 and October 1868. Only known besides 
from Ceylon. 
*Scirpus barbatus, Rottb. (=Isolepis barbata, R. Br.; Benth. Fl. 
Hongk. 393.) : 
*Scirpus supinus, Linn. (=Isolepis supina, R. Br.; Benth. Fl. Hongk. 
394. 
Dd and, following him, Thwaites retain /solepis as a genus, 
whilst uniting Eleocharis with Scirpus ; but, of the two, Eleocharis 
has unquestionably the higher claim to be kept separate, charac- 
ters derived from the style being more constant and of greater 
value than the presence or absence of hypogynous sete ; and both 
Parlatore and Asa Gray admit it to generic rank while merging 
Isolepis in Scirpus. Grisebach, probably with more justice, reduces 
Fimbristylis even to Scirpus; for F. capillaris, A. Gray, has about 
equal claims to rank with Zsolepis. 
*Fimbristylis rigidula, Nees in Wight, Contrib. 99; Steud. Syn. Pl. 
Cyp. 116. (=F .diphylla, Vahl, var. ? leptophylla, Benth. Fl. Hongk. 
392. 
ene specimens, determined by Mr. Bentham himself, are 
certainly identical with Dr. Thwaites’s C. P. 3232. à 
K 
