MR. G. BENTHAM ON GBAMINEX. 68 
pedicel, and the very different shape and proportion of the glumes, 
seem sufficient to maintain the genus as distinct. 
8. Lornorrris, Dene., is a little slender East-Indian annual, 
allied in some respects to Latipes, but with excessively minute 
curiously shaped spikelets, so rapidly ripening and so very deci- 
duous that itis very rare to find any on the specimens in an 
examinable state. The plant was first sent home by Wallich 
under the name of Holboellia, and was figured as such by Hooker 
in the Botanical Magazine; but in the meantime Wallich pub- 
lished a Lardizabalous genus under that name in his Tentamen 
of a Nepal Flora, and Decaisne therefore changed that of the 
present grass to Lopholepis. 
9. NeuracHnE, R. Br., three Australian species, and 10. PEro- 
TIS, Ait. (Xystidium, Trin.), from the tropical regions of the Old 
World, of which the species are variously estimated as from two to 
seven, are both of them well-known genera, accurately described 
and figured. 
11. LEPTOTHRIUM, Kunth, founded on a specimen brought by 
Humboldt from tropical America, is unknown to me. It is said 
to be very near the Asiatic genus Zoysia, and, from the descrip- 
tion, seems to differ chiefly in its widely distant geographical 
station and in the presence of an additional lower empty glume. 
12. Zoxsıa, Willd. (Mafrella, Pers.), is a well-defined genus of 
two or three maritime plants, dispersed over the shores of eastern 
and southern Asia, Australia, and New Zealand, extending also to 
the Mascarene Islands. 
To these Zoysiez I have provisionally added a small Mexican 
plant, the affinities of which are very puzzling, and which I 
have described and figured as a new genus SCHAFENERA, so named 
after the collector from whom we have received it. At first sight 
it seemed to bear some resemblance to Press figure of Catheste- 
chus ; but the structure of the spikelets is quite different, being 
nearly that of Zoysia, whilst the general inflorescence, though on 
a much smaller scale, approaches that of some species of Andro- 
pogon (Cymbopogon) or of Apluda. 
Tribe VI. ANDROPOGONEX. 
This tribe is chiefly characterized by the spikelets in pairs at 
each node of the articulate rhachis of the spike or of the branches 
of the panicle, or in triplets at the end of each branch, and by 
the inner glume under the fertile flower being much smaller and 
G2 
