78 
cl vii. GRAMiNEiE (Stapf). [ Ghasmojoodium . 
2 or 3, rather long and simple, all flowering. Leaf-sheaths more or 
less terete, tight, quite glabrous ; ligules a line of short cilia ; blades 
long, linear-lanceolate, setaceously acuminate, gradually passing 
into the sheath, up to If ft. long and 3-5 lin. wide (those of the 
branches much shorter or the uppermost rudimentary), flat, rigid, 
glabrous, scaberulous above, smooth below, very rough along the 
margin, midrib stout, whitish above, lateral nerves not prominent. 
Racemes 2J-3J in. long, straight, rather stout, glabrescent, pale ; 
joints 2-2 J lin. long, stout, linear below, clavate above, convex and 
smooth on the back, slightly concave on the inner face, shortly 
and softly ciliate on the angle facing the pedicel ; pedicels hardly 
shorter than the joints, separated from them by a linear-oblong 
space, linear, clavate, flat, ciliate along the outer angles. Sessile 
spikelet with a very narrow ring-shaped minutely puberulous dis- 
tinct callus, oblong, 3J lin. long, pale. Glumes subequal ; lower 
coriaceous including the upwards widened keels, obtuse, 2- 
toothed, convex on the back, glabrous, very minutely scaberulous, 
many-nerved if seen from within, keel-wings or crests with anas- 
tomosing venules ; upper slightly shorter, coriaceous, ovate, 
truncate, keeled, with a coriaceous obliquely truncate wing, quite 
glabrous, 11-nerved. Valve of lower floret elliptic-lanceolate, as 
long as the upper glume, acute, hyaline, ciliate, 3-nerved, with a 
similar glabrous 2 -nerved valvule ; of upper floret of the same length 
as that of the lower floret, ovate, acute, hyaline, 3-nerved, glabrous, 
with a lanceolate acute equally long valvule. Anthers 1J lin. long. 
Stigmas linear, purple. Pedicelled spikelet similar in size and. 
shape to the sessile, if not more lanceolate and greener, the lower 
glume winged rather broadly on one side only ; upper glume winged 
nearly from the base. Florets both 8. — Rottbcellia Afzelii , Hack, in 
DC. Monogr. Phan. vi. 300. 
Upper Guinea. Senegal, Heudelot, 336! Sierra Leone: Mabonto, Thomas, 
3506 ! very common all over the Sierra Leone hills, Scott Elliot, 3938 ! Afze- 
lius ! Sherbro Island, Hunter ! 
20. CfELORHACHIS, Brongn. in Duperr. Voy. Coq. Bot. 64, t. 14. 
Spikelets 2-nate on the nodes of the fragile rhachis of slender more 
or less compressed conspicuously dorsiventral spike-like racemes 
which terminate the culms and their usually fascicled spathe-sup- 
ported branches, different or very rarely alike in sex, similar in 
shape or the pedicelled more or less to very much reduced ; joints 
and pedicels similar or the latter more slender, linear to cuneate 
or subclavate, dorsally compressed, glabrous, contiguous or nearly 
so ; disarticulation of the joints at a right angle to the rhachis, 
their tips more or less hollowed out, with or without an auriculi- 
form appendage. Sessile spikelet dorsally compressed, the narrow 
transverse callus fused with the bases of the adjacent joint and 
