Rottbellia| XXVIII. GRAMINEAE. 141 
spicuously 3-nerved back and incurved bluntly keeled edges, apex 
bluntly emarginate, surface minutely scabridulous as is also the 
exposed surface of the rhachis-joint and pedicel; inner barren 
glume subequal, chartaceous, bluntly scaphoid with scabridulous 
keel and incurved edges embracing the third, which is slightly 
shorter, elliptical, with 2 converging nerves, epaleate, and like 
the fertile glume hyaline; fertile glume enclosed in the second 
barren glume, 3-nerved and similar in shape, subtending a 
slightly shorter 2-nerved pale with a % flower; pedicel free, 
broadly clavate, spikelet narrower and slightly shorter, other- 
wise similar. 
Described from a single specimen: culm to base of inflorescence 
14 in., subcompressed, the single exposed node shortly hairy; the 
sheaths among which it springs show traces of burning. First 
sheath above the base 3 in. long, slightly shorter than the inter- 
node, 1$ lines wide; upper sheath narrower a little over 5 in. 
long. Leaf-blades stiffish, subflattened with crisped margin, sub- 
conspicuously multinerved, with a few hairs at the rounded base, 
otherwise glabrous, 1} in. long by scarcely { in. wide, or less. 
Inflorescence 51 in. long, of 4 curving subcompressed racemes, 
3 to 4in. long, subdigitately arranged on a common axis 2 in. 
long ; rhachis-joints, pedicel, and ppilelets glabrous ; sessile spikelet 
2 lines long, callus very short, scarcely ¢ line long; outer glume 
coriaceous ; inner barren glume 13 line ; fertile glume 13 line, 
pale 14 line. Pedicel little over ft line long, spikelet 12 line, 
including like the sessile one § flower. 
A very distinct species, perhaps nearest to the Indian ZR. speciosa 
Hackel, but a smaller plant, distinguished by its smaller blunt 
1-flowered spikelets. 
HUILia. —In thinly grassed thickets near Mumpulla, rare; Oct. 1859. 
No. 2648. 
8. MANISURIS Sw.; Benth. & Hook. f. Gen. Pl. iii. p. 1130. 
1. M. granularis Linn. f. Nov. Gram. Gen. p. 37, figs. 4-7 (1779); 
Hack. Mon. Androp, p. 314; Durand & Schinz, Consp. Fl. Afr. v. 
p. 700. 
UM. polystachya Beauv. Fl. Owar. p. 24. t. xiv. (1805) ; Cenchrus 
grenuloris L. Mant. p. 575 (1771). 
Gotunuo ALTo.—Remarkable for its spikes almost entirely enclosed 
in the sheaths. Sunny places Banza do Sova and Montalegre; Feb. 1855. 
No. 7259. 
9. ISCHAMUM L.; Benth. & Hook. f. Gen. Pl. iii. p. 1132. 
1. I. fasciculatum Brongn. Voy. Coqu. Bot. Pt. ii. p. 73 (1829) ; 
Hack. Mon. Androp. p. 235; Durand & Schinz, Consp. Fl. Afr. v. 
p. 697. 
Hvuitta.—In damp rocky mountain places near the cataract of 
Lopollo ; 31 Oct. 1859. No. 7484. 
