106 MB. G. BESTHAM on GRAMlKE^. 



16. Lepibopyeonia, A. Eich,, is a single Abyssinian species 

 which I have not seen, and of which the specimen described is 

 said to have been imperfect. .From the figure and description it 

 would appear to be allied to the Tripogon cibyssinicus, Nees, but 

 with broad, very villous flowering glumes, and the single awn not 

 quite terminal. 



17. Tetraposon, Desf., lias four Abyssinian, North-African, 

 or "West-Asiatic species, including the above-mentioned Chloris 

 villosa, Pers., and O. macrantha of Jaubert and Spach. They have 

 one, two, or rarely three terminal erect spikes, resembling Elio- 

 nurus in the long silky hairs which cover them, but with the cha- 

 racters of Chlorideee, differing from Chloris itself in their several- 

 flowered spikelets. 



18. AsTEEBiiA, p. Muell., comprises two or three Australian 

 species formerly referred to Dantlionia, from which the habit and 

 untwisted awn separate them. In the ' Elora Australiensis ' I 

 placed them near PappophoresB on account of their many-nerved 

 glumes ; but the inflorescence places them in Chlorideaj, where 

 they come in many respects near to Tetrapogon. 



19. Wangekheimia, Moench {Oynosurus Lima, Linn.), from 

 Spain and North Africa ; 20. Ctenopsis, DeNotar. {Festuca 

 pectinella, Delile), from North Africa ; and 21. Teieaohne, 

 Nees, from South Africa, are all single species hitherto referred 

 toEestuceffi; but they have all the one-sided spikes with the 

 spikelets sessile in two rows of Chloridefe, to which, following out 

 Munro's memoranda, I have transferred them. The spikes are 

 solitary, erect, and often slightly falcate in Wangenheimia and 

 Ctenopsis, several scattered along the common peduncle in 

 Tetrachne. 



22. DiJTEBEA, Jacq., remains limited to the original African 

 and East-Indian B. arahica figured by Jacquin. DeCandolle, as 

 above mentioned, joined it with the section Aiheropogon of 

 Bouteloua, of which it has the habit ; but there are always two 

 fertile flowers to the spikelet. Kunth referred it to Leptochloa, 

 from which it is further removed by its short dense awned spikes ; 

 and from both it is separated by the lower empty glumes as long 

 as, or longer than, the rest of the spikelet. 



23. Eleusine, Gsertn., taken in the sense given to it by Per- 

 soon, is a natural genus of about seven species, from the tropical 

 and subtropical regions of the Old World, two of them common 

 weeds also in America. The spikes are usually several, digitate 



