144 XXVIII. GRAMiNE.E. [Andropogoii 



.spikelet scarcely 4 lines long ; gl. I. 2^ lines long ; gl. II. a 

 good 2 lines ; gl. III. 2 lines ; gl. IV. colourless, 11 line. 



A very distinct species of the section. 



HuiLi,A. — Rather damp pastures in the Lopollo district ; widely 

 cfBspitose ; Feb. 18G0. Xo. 2641- 



Subgenus II. Diectomis. 



5. A. fastigiatus Sw. Prodr. p. 2G (1788) ; Hack., I.e., p. 393 • 

 Durand & Schinz, I.e., p. 711. 



Prxfio AxDONco. — A grass 2 to 3 ft. high, annual, slender, with 

 scarcely cgespitose 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 praesidium ; April 1857. With No. 2820 (Ci/mlxi/iofjo/i 

 Wehcit.-<ch i I Var . m ino r ) . 



6. A. textilis Welw. ms. in herb. 



Widely caespitose 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 sti^ong bicarinate 

 median portion and broad more membranous margins ; spikes 

 long-stalked, erect, smaller narrower and more compact than in 

 A. Jastigiatus; edges of rhachis- joints and pedicels densely hau-y, 

 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 

 1 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 appres-sed 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 wdthin 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 ?r in. long ; blades reaching 14 in. long, about }; line 

 greatest width (in their natural folded state), upper ones shorter. 



