Isachne] XXVIII. GHAMINEyE. 1G7 



with purple, margins ciliate. Panicle scarcely fully expanded, 

 6 in. long by 4 in. broad, broadly ovate in outline, lov/ar bi-anches 

 2.^ in. long becoming shorter above, branchlets and pedicels very 

 shortly hairy, pedicels equal to, or 2 to 3 times the length of, the 

 spikelets. Barren glumes meml)ranous, pui-plish with a broad 

 thinner colourless margin, very blunt, the lower oval, 5- to 7-nerved, 

 with a few stiff erect hairs near the top, l line long, the upper 

 ovate, 7-nerved, glabrous, slightly shorter than the lower (^ line 

 long) ; lower fertile glume nearly 1 line, subcoriaceous, 7-nerved, 

 broadly oval, with a bluntly-pointed apex and a few stiff shoi-t 

 bail's at the base, the incurved edges enveloping a more narrowly 

 oval pale with a $ flower, anthers purple, styles very feathery ; 

 upper fertile gl. -i line, coriaceous, oval, 7-nerved, setuliferous 

 at the base with a few scattered short hairs above, enclosing a 

 narrower pale with a ? flower. 



Has the habit of /. midtiflora Trim., but is cUstinguished by the 

 characters of the spikelet, which is narrower with much nai'i-ower 

 fertile glumes. 



HuiLLA. — Damp rocks at Morro de Lopollo. At the cataract : end 

 of March 1860. No. 7499. 



22. PANICUM L. ; Benth. & Hook. f. Gen. PI. iii. p. 1100, 

 pro parte. 



Sect. 1. — Brachiaria. 



1. P. brizoides Lam. Illustr. 1. p. 170 (1791). 



P. paspalodes Pers. Syn. i. p. 81 (1805) ; Benth. in. Hook. 

 Niger Fl. p. 560 (1849); Steud. Syn. PI. Gram. p. 60 (1854) 

 (ei-rore ^^aspcdokles). 



MossAMEDES. — Sandy places at the river Maiombo, near Bisaco, 

 growing with various CyperaceiB ; Oct. 1859. No. 2638. A perennial 

 stoloniferous creeping grass, i to 2 ft., in form like Becknuuinia, rather 

 succulent and affording excellent fodder for cattle. A-'ery common in 

 woody damp places at the mouths of the rivers Giraul (or Quinina) 

 and Maiombo, and round Lake Giraul ; July 1859. No. 2289. 



2. P. andongense Rendle sp. nov. 



Perennial, 2^ ft. high, with a tuft of spreading branching shoots ; 

 leaves patent, linear-lanceolate, acute, with rigid minutely aculeate 

 margins ; spikes short, distant, sessile ; spikelets few, tui-gid, closely 

 arranged in two rows on a slender flexuose rachis, IV line long, 

 obovate, sparsely puberulous ; glume I. blunt about \ gl. IT. ; 

 gl. II. very concave, a little shorter than gl. III., which is 

 coriaceous, oliovate, and encloses a large broad pale and ($ flower ; 

 fertile gl. nearly equal to the last, obovate, enclosing a 5 flower. 



A number of shoots spring in a tuft from the shoi-t hard 

 rhizome ; they spread and branch copiously, becoming with their 

 ascending branches finally erect, and ending in long subtiliform 

 spike-bearing axes ; nodes puberulous. Leaf- sheaths generally 

 strict or appressed, except in the lower parts shorter than the 

 internodes, striate with pilose edges and mouth ; ligule short, 



