144 XXVIII, GRAMINEA, [Andropogon 
spikelet scarcely 4 lines long; gl. I. 24 lines long; gl. II. a 
good 2 lines; gl. IIT. 2 lines; gl. IV. colourless, 1} line. 
A very distinct species of the section. 
Hvitta.—Rather damp pastures in the Lopollo district ; widely 
cespitose ; Feb. 1860. No. 2641. 
Susacenus II. Diectonis. 
5. A. fastigiatus Sw. Prodr. p. 26 (1788); Hack., /.c., p. 393 ; 
Durand & Schinz, lc. p. 711. 
Puxco Anponco.—A grass 2 to 3 ft. high, annual, slender, with 
scarcely czspitose growth, erect: spikes nodding. In rather damp 
meadows near Muta-Lucala on the right bank of the Cuanza; Mar. 
1857. No. 7405. In sandy thicket-grown woods between Catete and 
Luxillo; April 1857. No. 7416. Lofty meadows of Pedra de 
Cabindo, on the presidium; April 1857. With No. 2820 (Cymbopogox 
Welwitschii Var. minor). 
6. A. textilis Welw. ms. in herb. 
Widely cespitose with slender erect culms 2 to 3 ft. high, 
densely clothed at the base with the withered remains of sheaths ; 
nodes glabrous ; leaves glabrous, basal and cauline erect, elongated, 
very narrowly linear and plicate becoming subulate and finely 
pointed above ; ligule large, ovate, blunt with a strong bicarinate 
median portion and broad more membranous margins; spikes 
long-stalked, erect, smaller narrower and more compact than in 
A, fastigiatus ; edges of rhachis-joints and pedicels densely hairy, 
hairs pale ferruginous; sessile spikelet nearly twice as long as 
the rhachis-joint; outer glume linear-oblong, median portion 
membranous and densely hairy, margins closely 3-nerved, 
hispidulous above the middle, the central nerve becoming stronger 
and passing above on each side into the short hispidulous awn ; 
gl. II. membranous, almost colourless, scaphoid, widest near the 
middle, the keel minutely hispidulous above, passing into the 
slender straight awn, completely enclosing the hyaline inner 
glumes ; fertile glume short, bipartite with a strong awn nearly 
I in. long; outer glume of pedicelled spikelet flat, subrigid, 
purplish brown, obliquely lanceolate, acuminate with shortly 
ciliate edges and triaristate apex exceeding that of the sessile 
spikelet by less than one-fourth ; gl. II. closely appressed to the 
outer and reaching to the base of its awns, membranous, lanceolate, 
shortly aristate with involute edges including gl. IV., which like 
gl. III. is hyaline and lanceolate with incurved ciliolate edges, 
and subtends a shorter pale with a ¢ flower. ; 
The bright yellow culms are unbranched below the inflorescence ; 
numerous acaulescent leaf-shoots spring from within the en- 
veloping basal sheaths. The lowest stem internode is enveloped 
almost to the top by the glabrous striate sheath, the rest are 
increasingly longer than their sheath. Ligule strong appressed 
to the stem } in. long; blades reaching 14 in. long, about + line 
greatest width (in their natural folded state), upper ones shorter. 
