74 MR. G. BENTHAM ON GRAMINEX. 
pedicellation of the spikelets have induced the proposal of distinet 
genera for most of the species, and several of them have been 
adopted by Andersson in a monograph most carefully worked up 
in as far as the materials at his command admitted, but in which, 
for want of access to a sufficiently rich library, he is much mis- 
taken as to several of the synonyms quoted. These proposed 
genera are:—1. Aristaria, Jungh., for A. frondosa, Br. (A. Jung- 
huhniana, Nees), which forms the section ZZeterelytron of Anders- 
son, but not Junghuhn's genus of that name. 2. Perobachne, 
Pres], is 4. arundinacea, Roxb., forming Andersson's subsection 
Chrysanthistiria. 3. Andersson’s subsection Euanthistiria for the 
common A. ciliata, Linn., and its immediate allies, to which some 
botanists would restrict the genus. Andersson distinguishes twelve 
species, adding at the same time that they might well all be re- 
duced to varieties of a single widely-spread species. 4. Andro- 
scepia, Brongn. (Heterelytron, Jungh.), was founded originally on 
the 4. gigantea, Cav., but became a very unnatural group when 
made to include A. (Androscepia) anathera, Anders., which very 
closely resembles .4. ( Euanthistiria) minuta, Anders., and a variety 
armata, Anders., of A. gigantea, which is much nearer to the A. 
(-Perobachne) arundinacea. 5. Iseilema, Anders., containing two 
East-Indian and one Australian species, and 6. Ewotheca, Anders., 
comprising A. abyssinica, Hochst., from tropical Africa, and A. 
fasciculata, Thw., from Ceylon, have each a peculiar habit and 
characters, sufficient to maintain them as sections. 7. Germainia, 
Balansa, has, perhaps, two closely allied species—A. caudata, Nees, 
from Khasiya and China, and the typical 4. capitata fron Saigou; 
the latter, however, which I only know from Balansa’s figure and 
description, is exactly like the Chinese plant, except that there 
appear to be rather more spikelets in the cluster. 
26. APLUDA, Linn., is now universally recognized as a distinct 
and natural genus, limited to the two tropical-Asiatic species ori- 
ginally assigned to it by Linneus, though his character was even 
then very imperfect, and rendered still more so by the subsequent 
addition of the very different American Zeugites, which Schreber 
afterwards restored asan independent genus. Beauvois, however, 
threw every thing into confusion; for it is evident from his figures 
that his Diectomis is A. aristata, Linn., and his Calamina is A. 
mutica, Linn., though in drawing up his character for the latter 
he combined it with some species of Anthistiria. Beauvois’s 
Apluda is certainly different, probably a Chrysopogon. 
