232 



CHINA. 



[ Graminece. 



aequilongis pubescentibus 3-5-nervibus, flosculo neutro fusco subtil issime punctato, culmo 

 erecto vaginisque glabris, foliis angustis supra velutino-scabris. — P. filiforme, Chinense. 

 Kunth. En. I. p. 46. 



Hab. Ad Macao urbem ; G. H. Vaclicll, " X." (ex parte.) 



Differt a P.filiformi rhachi latiori recta, s])iculis paullo majoribus imbricatis aut densius saltern confertis ; 

 a P. nematode culrao erecto gracili, vaginis foliisque protractis. 



[Kunth's Chinese locality is taken from Roxburgh ; but Roxburgh's Panicum filiforme is obviously a true . 

 Panicum, allied to his P. lineare (P. pseudodurva, N. ab E.) and P. commutation, N. ab E., but differing 

 by the upper glume being only half the length of the neuter floret, and both three-nerved and slightly villous 

 on the margin.] 



2. HELOPUS. Trin. 



EriochlocB genus Humb. et Kunth, secundum novissimum Kunthii librum idem ac Helopus, Trin. At 

 vero characteres in Nov. PI. Gen. et Sp. exhibiti, veram generis naturam non exprimunt. Itaque Trinianum 

 nomen retinendutn, quippo quo primum genus vero innotuerit. 



1. H. annulatus; racemo decomposito laxo, rhacbi triquetra glabra gracili, pedunculis 

 bifloris, spiculis ovato-lanceolatis sericeo-pilosis, culrao raraoso glabro. — N. ab E. Arjrost. 

 Bras. p. 16. — Eriochloa annulata. Kunth. En. l./?.73. — Paspalus annulatus. Flugge. — Trin. 

 1c. Gr. 12. t. 133.— Milium ramosum. Roxb. Fl. Ind. hp. 15; {ed. Wall.) hp. 317. 



Hab. Circa urbem Macao ; G. H. Vachell, n. 57. (ex parte.) 



Differt a reliquis sui generis gracilitate racemi, pedunculis longioribus bifloris, defectu vel minimi vestigii 

 u'lumai inferioris. 



3. PANICUM. Linn. 



a. DlGITAEIA. 



1. P. commutatum; racemis 3-5 subdigitatis erectis, rhachi scabra, spiculis subimbricatis 

 geminatis, gluma inferiori minutissima subrotunda truncatave enervi, superiori lanceolata 

 flosculo paullo breviori et duplo fere angustiori trinervi, quadrifariam dense lanata, valvula 

 neutra 5-nervi interstitiis nervorum lateralium dense villosis, culmo basi repente foliisque 

 glabris, vaginis ore barbatis. — N. ab E. in Linn&a, 7. p. 274. — P. ciliare. Roxb. Fl. Ind. I. 

 p. 200; {ed. Wall.) hp. 203. — P. filiforme. Thunb. — Digitaria commutata. Schult. Mailt, 

 p. 262. 



Hab. Circa Macao urbem ; Millett. Vachell, n. 34. 



Species singulari integumento spicularum ct foliis vaginisque extra oras glabris, ut et proportione glumaj 

 superioris, turn a P. ciliari, turn etiam a P. marginato, Link, bene distincta. 



b. Paspalidea. 



2. P. colonum; spica composita, partialibus pluribus (5-9-nis) alternis discretis approxi- 

 matis erectis, rhachi communi glabris, partialibus scabris, spiculis quadrifariis imbricatis 

 ovatis turgidulis, glumis mucronulatis hispido-scabris, inferiori triplo breviori, flosculo 

 neutro bivalvi valvula inferiori mucronata, hermaphrodito laevi mucronato, culmo basi ra- 

 moso nodis foliisque glabris, his margine scabris. — «. Culmo plerumque humiliori, foliis 



