242 XXVIII. GRAMINEA. [Hragrostis 
MossaMEDES.—Sandy thickets on the river Bero; August 1859. 
No. 2606. 
19. E. rotifer Rendle sp. nov. 
An annual, 3 to 5 ft, high, with strong erect generally un- 
branched culms growing in tufts, and enveloped at the base by 
the long loose membranous sheaths which are pubescent at the 
very base; internodes 5, stout, terete, glabrous, with an irregular 
broken glandular ring below the swollen brown nodes ; mouth of 
sheath pilose, ligule a short dense row of hairs; leaves long, 
narrow linear, tapering to a setiform apex, scabrid, flattened, 
plicate or subconvolute when dry; panicle large, pyramidal, 
interrupted, the two lower nodes separated by a long internode 
and bearing a dense whorl of long very slender branches which 
branch again from the base upwards, succeeding internodes 
gradually shorter, and the branches at the nodes rapidly diminish-. 
ing in number and importance ; spikelets subcompressed, narrow- 
linear, glabrous, terminal or on pedicels half or less than half 
their length, flowers 8 to 15, somewhat laxly arranged on the 
very slender rhachis; barren glumes unequal, light-coloured, 
membranous, inconspicuously 1-nerved, the lower smaller, bluntly 
lanceolate, reaching just above the middle of the lowest fertile 
glume, caducous, the upper ovate, blunt; fertile glumes a dull 
brownish-green with a membranous brownish apex, broadly ovate 
when opened with a median and 2 incomplete faintly curved 
lateral nerves, apex blunt or rounded, back rounded ; pale scarcely 
shorter, keels minutely scabridulous in the upper part; anthers 
purplish; grain compressed, ellipsoidal, reddish-brown, hilum 
deeper-coloured. 
Basal and lower sheaths to 5 in. long, exceeding the inter- 
nodes, above the second internode about 4 in. long and shorter 
than the internode ; ligule 2 line long; leaves 9 to 18 in. long, 
1} to scarcely 2 lines broad at the base. Panicle when fully 
developed 1 ft. long and 8 in. in greatest diameter, internodes 
between the two lowest fertile nodes, 33 in. long, rhachis and 
branches glabrous. Spikelets 3 to 4 lines long, by 4 line broad. 
Lower barren gl. 4 line, the upper 2 to 3 line; fertile gl. 2 to 
scarcely # line long; anthers (3) barely 3 line; grain 3 line long. 
Differs from the large variety of H. agrostotdea in its long 
dea leaves, laxer spikelet and densely whorled interrupted 
panicle. 
Barra Do BENGO.—An annual, 3 to 5 ft. high, with erect culms 
and spreading panicles, By ponds between Quicuxe and Cacuaco ; 
June 1858. No. 7284. Nos. 7341, 73410 (no notes). 
20. E. huillensis Rendle sp. nov. 
Perennial with a tough slender densely rooting rhizome, culms 
tall, erect, unbranched, with 4 internodes; nodes glabrous not 
prominent ; leaf-sheaths loose, glabrous, save for a few hairs at 
the mouth, except the lowest generally half or less than half the 
length of the internode; ligule a very short and dense row of hairs, 
