Chloris] XXVIII. GRAMINE®, 223 
cauline internodes 3 to 4, slender, wiry, exceeding the leaf-sheaths ; 
leaves resembling the radical but with blades becoming shorter 
upwards ; spikes 2 in. long, a digitate pair, spikelets dull purplish- 
brown, membranous, oblong-lanceolate, 2-flowered, for the genus 
rather laxly arranged on the slender purplish rhachis; barren 
glumes hyaline except the keel which is subscabridulous in the 
upper half, the outer narrowly oblong when flattened, acute, 
the inner ovate and slightly shorter with a bilobulate shortly 
aristate apex ; fertile glume ovate, apex minutely bilobulate, with 
an interstitial awn about half the length of the glume, keel and 
especially the marginal nerves densely hairy; pale glabrous, 
lanceolate ; upper glume shortly stalked, glabrous, hyaline, bluntly 
lanceolate, epaleate. 
' Plants in the type specimen 8 to 9 in. high, but reaching 
11 ft. in the set at Lisbgqn; leaf-sheaths about 1 in. or less in 
length, blades reaching 14 in. long by nearly 2 lines broad, with 
a strong margin and conspicuous midrib. Spikelets the length of 
gl. L., which is a little over 2 lines long and nearly $ line broad, 
gl. II. 2 lines long, about 3 line broad, awn less than } line ; gl. IIT. 
barely 2 lines long not including the weak awn (3 to 2 line), pale 
slightly shorter, stamens 3, lodicules bluntly obcuneate, retuse ; 
gl. IV. a little over | line long, stalk barely } line. 
A very distinct little species, recalling somewhat C’. monostachya 
Poir. in habit, but a much more robust plant. 
Puxco ANDONGO ?—No. 2853 (no information). 
51. TRIPOGON Roth ; Benth. & Hook. f. Gen. PI. iii. p. 1169. 
1. T. abyssinicus Nees ex Steud. Syn. Pl. Gram. p. 301 (1854) ; 
Durand & Schinz, Consp. Fl. Afr. v. p. 864. 
Punco ANpDONGO.—A densely cespitose herb, scarcely a span high, 
culms and leaves rigidulous, often reddish ; culms numerous, slender, 
sometimes oblique, sometimes straight, or even widely spreading. The 
habit simulating that of Nurdus strictus. Plentiful in the clefts on the 
higher rocks of the presidium but very sparsely flowering ; in fl. and 
immature fr. 18 Dec. 1856. Nos. 2765, 2752. Plentiful in damp lofty 
meadows of the presidium at Funda-Quilombo ; end of April 1857. 
No. 2813. On the lofty rocks of Pedras de Guinga ; Jan. 1857. No. 7389. 
52. DINEBRA Jacq. ; Benth. & Hook. f. Gen. PI. iii. p. 1171. 
1. D, arabica Jacq. Fragm. p. 77, t. 121, fig. 1 (1800-—1809). 
D. retrofleca Panz. in Denkschr. Akad. Wiss. Miincb. 1813, 
p. 270, t. 12 (1814) ; Steud. Syn. Pl. Gram. p. 299 (1854) ; Durand 
& Schinz, Consp. Fl. Afr. v. p. 865; var. brevifolia Durand & 
Schinz, lc. ; D. brevifolia Steud. Lc. 
Loanpa.—A laxly cespitose rigidulous annual branched from the 
base, culms sometimes prostrate, sometimes ascending or obliquely 
erect, 1 to 3 in. to 14 ft. long. Plentiful, but in a few localities, on 
plains flooded in the rainy season between Loanda and Quicuxe ; 6 and 
7 Feb. 1859. No. 2903. Here and there in rather damp Adansomu 
groves near Imbondeiro dos Lobos ; Feb. 1858, No. 7292. Sporadic 
round drying-up ponds near Bemposta ; June 1858. No. 7292. Nos. 
7338, 7483 (no information). 
