MR. G. BENTHAM ON GRAMINEX. 103 
with one to three empty awned glumes above the flowering one, 
are quite those of Chloris, The two southern species had long 
been indicated and named in herbaria as constituting an inde- 
pendent genus (the one by J. Gay, the other by Munro); but 
never having been published, we must adopt Fournier's generic 
name for the whole. The two southern species (from Chili, 
Tucuman, and Buenos Ayres) are indeed so very near 7. fasci- 
culata, Fourn., that it will require close investigation to estab- 
lish their specific differences. Another different-looking plant 
from Tucuman (Tweedie), much smaller, with a loose inflores- 
cenee and short-awned spikelets, shows also the essential cha- 
racters of Trichloris. 
9. Gyxworoaow, Beauv. (Anthopogon, Nutt.), differs from all 
ihe preceding one-flowered genera in the spikelets not closely 
crowded, but more or less distant along the slender rhachis ofthe 
spikes, although still sessile in two rows and unilateral; the spikes 
themselves are scattered or verticillate along the common pe- 
duncle. There are four or five American species, northern or 
southern, and one from Ceylon, G. rigidus, Thw., forming Nees's 
genus Dichetaria, but only differing from the American ones, in 
the spikes fewer in the panicle, and the spikelets rather larger with 
longer awns. Doell’s G. foliosus and G. pullulans should be 
restored to Chloris, with which they agree in every respect except 
that the spikes are not quite so closely clustered at the end of 
the peduncle. 
10. MoxocHrE, Doell, a single Brazilian species of which I 
have seen no specimen, is removed by Doell from Gymnopogon, 
where Martius had placed it, as having no continuation of the 
rhachilla beyond the flower. Nees, however, deseribes a bristle- 
like continuation, but not bearing any empty glume or awn 
as in Gymnopogon. The genus is as yet, therefore, in some 
measure doubtful. 
ll. ScigpoNNARDUS, Steud., is the North-American Leptu- 
rus paniculatus, Nutt., which, however, Steudel failed to recog- 
nize. Nuttall indicated its affinity to Gymnopogon, and evidently 
only placed it in Lepturus from not knowing the latter genus 
except from the imperfect characters then published. Sckedon- 
nardus has now been figured in the last part of Hooker's Icones ; 
the deseription, accidentally omitted in printing, will appear in 
the next part. 
12. CnmasPEDonHacHis, Benth., is a single species from east 
tropical Africa, allied to Sehedonnardus, but differing in the 
