Crossotropis| XXVIII. GRAMINER, 227 
‘by its regular compound spicate inflorescence, and smaller fewer- 
flowered spikelets, etc. 
Loanpa.—Quinta de Luiz Gomes ; May 1854. No. 7460 (in part). 
No. 7482 (no notes). zt sista 
MossaMEDES.—1859. No. 2302b. A fragment of a stunted plant. 
58. DIPLACHNE Beauv. ; Benth. & Hook. f. Gen. Pl. iii, 
p. 1176. 
1, D. paucinervis Stapf ined. 
Dactylis paucinervis Nees Fl. Afr. Austr. p. 429 (1841); Steud. 
Syn. Pl. Gram. p. 297 (1854); Durand & Schinz, Consp. Fl. Afr. 
v. p. 904. 
MossaMEDEs. — Perennial, stoloniferous, with ascending much 
branched purplish culms, rigidulous glaucous subviscid leaves, con- 
tracted spikes and the habit of Poa or Danthonia. Very plentiful and 
excluding almost every other plant at the subsaline ponds between 
Porto de Pinda and the mouth of the river Croque or Caroca ; 31 Aug. 
1859. No. 2613. : 
59. TRIRAPHIS R. Br.; Benth. & Hook. f. Gen. Pl. iii. p. 1177, 
1, T. Pumilio R. Br. in App. Denh. & Clapp. Trav. Afr. p. 245 
(1826) ; Steud. Syn. Pl. Gram. p. 199 (1854). 
T. nana Hack. in Engl. Bot. Jahrb. xi. p. 403 (1890) ; Durand 
& Schinz, Consp. FI. Afr. v. p. 871. Diplachne nana Nees Fl. Afr. 
Austr. p. 259 (1841). Trisetum nanum Steud., Le, p. 227. 
MossaMEpeEs.—A somewhat cespitose grass, fixed in rather damp 
sand by a few hair-like root-fibres. In sandy places on the river 
Bero (or Rio das Mortes) near Mata dos Carpinteiros ; 1859. No. 2302. 
2. T. Welwitschii Rendle sp. nov. 
A small annual; culms generally unbranched, czspitose, with 
3 to 4 internodes, exposed portion below the panicle sparsely 
pilose ; leaf-sheaths striate, tuberculate-pilose, completely covering 
or slightly shorter than the internodes ; ligule represented by a 
thin row of short hairs, sometimes obsolete; blade flat, linear, 
tapering to.a subaristate apex, scabridulous and glabrous or 
sparsely tuberculate-pilose dorsally at the base ; panicle somewhat 
lax, lateral branches short, spreading, ascending or suberect, 
solitary or fastigiate, spikelets terminal on the branchlets or 
shortly stalked, many-flowered, a deep wine-red, becoming brown ; 
barren glumes slightly unequal or subequal, membranous, |-nerved, 
glabrous, the lower often shorter, ovate, tapering to a shortly 
aristate apex, the upper narrowly oblong, the apex more or less 
tridentate with the median tooth shortly awned ; flowering glumes 
slightly shorter than gl. IT., with short slender shortly hairy callus, 
lanceolate to oval-lanceolate, 3-nerved, the median awn generally 
slightly exceeding the glume springing from between two short 
hyaline lobes, lateral awns about 1 shorter, hyaline margins 
sparsely villous from above the base upwards; pale slightly 
shorter, narrow linear-oblong, glabrous, compressed. 
Plants 6 to 11 in. high ; the bases of the culms with their loose 
