166 XXVIII. GiiAMixE/E. [Dlgitafiii 



truncate, generally oblique. Panicle 5 to 7 in. long ; rhacbis 

 .slender, elongated, beai-ing numerous tiliform lateral branches ou 

 which the spikelets are arranged singly, or, in the lower portion, 

 on short few-flowered branchlets ; articulation of spikelets large, 

 shortly hairy. Lower glume acutely triangular from a rounded 

 gibbous base, 3-nerved, densely covered with long stiff hairs, li line 

 long ; upper subacute with thinly membranous incurved edges, the 

 nerves densely hairy, 1 1^ line long ; fertile glume shghtly .shorter 

 than the upper barren glume, glabrous, the edges incurved above 

 the middle, thin, and translucent, becoming convolute above to 

 form an abruptly acute apex; pale narrower, similar in form and 

 texture to the glume. 



HuiLLA. — A cEespitose grass, with erect leaves and culms, and silvery- 

 shining spikelets. Common in sandy clayey thickets near Lopollo : 

 2 Dec. 1859. No. 2634. 



Material insulEcient for specific determination : — 



Sierra Leone.— Sept. 1853. No. 2942. 



20. ERIOCHLOA H. B. & K. ; Benth. & Hook. f. Gen. PI. iii. 

 p. 1099. 



1. E. polystachya H. B. & K. Nov. Gen. & Sp. i. p. 95, t. 31 



(1815) ; Durand & Schinz, Consp. V\. Afr. v. p. 739. 



E. annulata Kunth Eev. Gram. i. p. 30 (1829). E. punctata 

 Hamilt. Prodr. PL Ind. Occ. p. 5 (1825) ; Durand & Schinz, I.e., 

 p. 739. Panicum annulatum A. Eich. Tent. Fl. Abyss, ii. 

 p. 370 (1851). 



LoANUA. — Banks of ponds in sandy clayey soil above Forte do 

 Conceicao ; rather rare ; perennial ; 12 July 1854. Xo. 7344. A grass 

 a foot high, in habit simulating a dwarf form of Glijcfrla jluifam. In 

 clayey sandy soil round the artificial ponds (represa), of Sr. Luiz 

 Gomes, south of Loanda ; May 1858. Xo. 7289. A small prostrate 

 perennial grass. Around ponds, dry in winter, near Bemposta, Init 

 sparse ; Jun. 1858. Xo. 7283- 



21. ISACHNEE. Br. ; Benth. & Hook. f. Gen. PI. iii. p. 1100. 

 1. I. angolensis Eendle sp. nov. 



Shoots decumbent and much branched below, then erect, leafy 

 up to the panicle, leaves narrowly sublanceolate-linear, acute ; 

 panicle large, habit of /. multiflora Trim., branches spreading, 

 densely flowered in the upper two-thirds from the appressed 

 secondary branches; spikelets like the rhachis and branches reddish- 

 purple, oval, blunt, 1 line long ; barren glumes subequal with 

 broad colourless margins ; lower fertile glume oval, overtopping 

 the barren glumes, enclosing a $ flower, upper shorter enclosing 

 a ? flower. 



Shoots copiously branched below, rooting at the lowermo.st 

 nodes, nearly 1^ ft. high ; nodes geniculate, purplish, glabrescent. 

 Leaves 2 to 4 in. long by 2 to 2^^ lines broad, glabrous, face.s 

 veiTUCulose, veining rather prominent on the lower ; ligule com- 

 prising a row of rather long (1 line) whitish hairs; sheaths, 

 except the uppermo.st, about equal to the internodes, striate, tinged 



