134 DR. H. F. HANCE'S SUPPLEMENT TO 
Pl. Gram. 186. (=P. patula, Nees, ibidem.—P. latifolia, Ait. ; 
Benth. Fl. Hongk. 413.) 
I consider this is truly distinct from the Ceylon and South- 
African P. hordeiformis, Nees, by its much longer spikelets and 
awns, and looser racemes. Steudel gives seven species of Perotis ; 
but I believe the two just mentioned and P. rara, R. Br., are the 
only well-founded ones. 
*Zoysia sinica, Hance in Seem. Journ. Bot. vii. 167. (= Zoysia pun- 
gens, Benth. Fl. Hongk. 418.) 
I consider this a very good species as compared with the true 
Z. pungens, Willd., from Ceylon and Australia. 
51. Saccharum procerum, Roab. Fl. Ind. i. 2435; Steud. Syn. Pl.Gram. 
406.) 
In waste places, on a dry gravelly or sandy soil, but not 
common. Occurs on the mainland, near Canton, and also in 
Bengal. 
52. Arthraxon ciliare, Beauv. (=A. japonicum, Mig. Ann. Mus. Bot. 
Lugd.-Bat. ii. 288.—Andropogon Retzii, Steud. Syn. Pl. Gram. 375. 
—A. submuticus, eidem, l. c. 382.—Pleuroplitis Langsdorffiana, Trin.; 
Kunth, Enum. Plant. i. 473.—Lucea Langsdorffiana, Steud. Syn. Pl. 
Gram. 413.—Batratherum submuticum, Nees.—Lasiolytrum hirtum, 
Steud. Syn. Pl. Gram. 12.) 
On bank-sides, but not a common grass in Hongkong. Abun- 
dant in many places on the adjacent mainland, and extending up 
the coast of China as far as Japan ; occurs also in the mountainous 
regions of India. The group to which this pretty grass belongs 
seems to me a natural one, all the species having a very marked 
inflorescence ; but Grisebach, following Trinius (Góttinger Nach- 
richten, Febr. 1868, 90), combines it with Andropogon. The pre- 
sent species varies a good deal in the number of spikes, the size, 
colour, and smoothness or roughness of the glumes, and absence 
or length when present, of the awns of the florets, and has been 
much misunderstood, as the above list of synonyms, which might 
doubtless be extended, will show. 4. nudum, Wall. (Pleuroplitis 
centrasiatica, Griseb.), which is found in the Himalayas, Nipal, and 
the Songorian steppes, is very doubtfully distinct; and the two are 
combined by Regel (Trautvetter, Enum. Pl. Schrenk., contin. 4- 
71). See the observations of Grisebach (Ledeb. Fl. Ross. iv. 478). 
53. Andropogon Bladhii, Retz; Roxb. Fl. Ind. i. 259 ; Steud. Syn. Pl. 
Gram. 379; Trin. Ic. Gram. t. 325. 
