Jardinea.'] 
CLVII. GRAMINEiE (Stapf). 
53 
rhachis 1 to over 6 in. long, lowest internode np to over 3 in. long, 
perfectly glabrous ; joints linear, slender, slightly widened and 
hollowed out above, 4-5 lin. long, almost flat or obtusely angular 
on the back, flat on the inner face, glabrous, sparingly scabrid or 
almost smooth all over, disarticulating horizontally, scar very sparingly 
ciliolate ; pedicels similar to the joints, 1|— 2 lin. long, parallel to and 
contiguous with them. Sessile spikelet linear-lanceolate, including 
the semi-annular short callus 3-3J lin. long. Glumes subequal ; 
lower chartaceous, flat, tapering to a short scabrid mucro, glabrous, 
with 3 or 5 short spines on each side and keels scabrid upwards, 
intracarinal nerves 3-4, distinct ; upper glume slightly shorter than 
the lower, subchart aceous, boat-shaped, semi-obovate-lanceolate, 
acute, glabrous, sparingly spinulously ciliate on the keel, 3-nerved, 
lateral nerves close to the margin. Lower floret : valve linear- 
oblong, subobtuse, 2J lin. long, hyaline, 2-nerved, with a similar 
but narrower valvule. Upper floret as long as the lower : valve 
lanceolate, acute, hyaline, 3-nerved ; valvule almost the same 
length, linear. Ovary glabrous. Grain oblong, slightly compressed 
on the back, 1 lin. long. Pedicelled spikelet similar to the sessile, 
but smaller. — Uottbodlia anqolensis, Rendle in Cat. Afr. PI. Welw. 
ii. 139. 
lower Guinea. Angola : Pungo Andongo, Welwitsch, 2849 ! 
3. J. congoensis, Franck, ex Hack, in DC. Monogr. Phan. vi. 
277, 690. Perennial, up to 10 ft. high. Culms erect, terete, stout, 
very smooth and glabrous, with leafy shoots from some of the upper 
sheaths. Leaf-sheaths firm, striate, smooth and glabrous, terete, 
the basal ones not seen ; ligules very short, membranous, rufous, 
minutely ciliolate ; blades linear, very long, tapering to a filie point, 
at the base gradually passing into the sheath, up to over 1J ft. long 
and 6 lin. wide, firm, apparently not rigid, quite glabrous or more 
or less hairy at the base and along the margins, smooth excepting 
the rough margin, midrib stout, whitish and slightly channelled 
above, nerves numerous, the primary 5-6 on each side. Racemes 
usually very many on a common rhachis, simple or compound, the 
lower verticillate, slender, flexuous, somewhat tough, up to 10 in. 
long, dull purplish or yellowish-green ; common rhachis up to 6 in. 
long, lowest internode up to 4 in. long, the following 6-4 lin. long, 
angular, bearded at the nodes, peduncles of the lowest racemes over 
an inch long, of the upper very much shorter or none ; joints linear, 
slender, slightly widened and hollow above, 3-4 lin. long, angular 
on the back, almost flat on the inner face, very scabrid along the 
inner angles, disarticulating horizontally, scar sparingly ciliolate ; 
pedicels similar to the joint, but shorter, parallel to it and somewhat 
distant. Sessile spikelet narrowly linear-lanceolate, with a small 
indistinct callus, 2J-3 lin. long. Lower glume chartaceous, flat, 
usually running out into a rigid or more or less flexuous scabrous 
