204 XXVIII, GRAMINEAE, [Aristida 
setaceous, becoming convolute, scabridulous, sparsely hairy 
beneath, ligule obsolete; panicle lax, strict, meagre; pedicels 
not exceeding the blue-purple spikelet; gl. I. linear-lanceolate, 
acuminate or tapering to a strongly cuspidate apex, with one 
strong median nerve, back hispidulous ; gl. IT. slightly exceeding 
gl. IL, linear-tapering to linear-lanceolate, strongly cuspidate, 
with a strong median nerve, glabrous; gl. III. oblong, tapering 
above without articulation into the awn-stipe, 3-nerved, scabridu- 
lous, awn stipe several times twisted, panicles generally 3 sub- 
equal or the median slightly longer, sometimes with one or two 
small additional branches. 
Plants about 15 in. high; leaves 4 in. long or less, } line or 
less in width. Panicle 21 to 4 in. long, branches few, generally 
appressed, not exceeding 14 to 12in. Gl. I. 31 to 4 lines long; 
gl. II. 33 to 42% lines; gl. ITI. about 23 lines, including the 
shortly bearded callus (4 line), awn-stipe 23 to 34 lines, branches 
6 to 8 lines. 
A distinct species of this section characterised by its strongly 
cuspidate subequal barren glumes, and strict meagre panicle. 
Huiiia.—A_ barley-like grass, culms suberect, widely ceespitose. 
Stony precipices at the cataract near Lopollo ; 1 Nov. 1859. On the 
drier rocks at the cataract of Lopollo ; April 1860. No. 2691. 
4, A. rhiniochloa Hochst. in Flora xxxvili. p. 200 (1855); 
Durand & Schinz, i.c., p. 808 (rhinochioa). 
Loanpa.—Plentiful in dry places grown with Euphorbia near 
Maianga do Povo, but found only in one locality; 17 May 1854. 
No. 7360. 
Sect. 2.—ARTHRATHERUM. 
5. A. hordeacea Kunth Rev. Gram. p. 517, t. 173 (1835) ; Steud.. 
Syn. Pl. Gram. p. 142 (1854); Durand & Schinz, ic., p. 803. 
A, Steudeliana Trin. & Rupr. in Mém. Acad. Sci. Petersb. 
ser. 6. vil. p. 155 (1843); Steud., Zc. ; Durand & Schinz, l.c., p. 809. 
Loanpa.—Annual, cxspitose, with a Bromoid habit, violet-purple 
glumes and yellowish awns. Sandy places, Alto das Cruzes; May 
1858. No. 7301. Nos. 7324, 7336, 7474 (no notes). 
6. A. vestita Thunb, Prodr. Pl. Capens. p. 19 (1794); Steud., 
ie. p. 142; Durand & Schinz, i.c., p. 810. 
Arthratherum vestitum Nees Fl. Afr. Austr. p. 174 (1841). 
Hvi.ia.—Plentiful in grassy thickets among Acanthacee between 
Quilengues and Lake Ivantdla ; Feb. 1860. No. 7516. 
The following specimen may belong to this species, but the: 
material is too young for determination, 
HuILLa.—Wooded meadows on the river Monino; Feb. 1860. 
No. 2651. 
Sect. 3.—Sr1pagrostis. 
7. A. subacaulis Steud. Nomencl. Bot. ed. ii. i. p. 132 (1840),. 
Syn. Pl. Gram. p. 144; Durand & Schinz, Le, p. 809. 
Arthratherum subacaule Nees, 1.c., p. 180. 
