265 
Andropogon.} clvii. gramineas {Stapf). 
margins rather setosely ciliate. Sessile spikelets laterally compressed, 
3J lin. long. Lower glume firm, ovate-lanceolate, sparingly hairy 
on the back, with 2 roughly ciliolate nerves near the narrow indexed 
margins ; upper glume papery, boat-shaped, acute, with 6 faint 
lateral nerves and a roughly ciliate keel. Lower floret : valve 
lanceolate, acute, hyaline, 2f lin. long, almost nerveless ; valvule 
of the same length. Upper floret ^ : valve 2-fid to about the middle, 
3-nerved at the base, delicate ; awn fine, 4J-5 lin. long ; valvule 
slightfy shorter, faintly 2-nerved. Pedicelled spikelet reduced to a 
single lanceolate glume 1-| lin. long. 
Upper Guinea. Cameroons : swamps by the Benue River at Garua, 1000 ft., 
Ledermann, 4577. 
This is evidently a species of Ischcemum, very near to if not identical with 
I. brachyatherum, Fenzl. 
45. A. Matteodanum, Chiov. Ann. Istit. Bot. Roma , viii. 279. 
Nile Land. Eritrea: Ocule Cusai ; Loggo Sarda, Deggaheu, 8500 ft., 
Pappi, 1388. 
The circumstantial description given by Chiovenda reads so much like that 
of Ischcemum brachyatherum , Fenzl, that there can be little doubt of their 
identity. 
46. A. Pospischilii, K. Schum. in Engl. Jahrb. xxiv. 328. Culms 
(base not known) slender, quite glabrous. Leaf-sheaths glabrous ; 
ligules acute, glabrous ; blades narrowly linear, acuminate, the upper 
about 9 in. by 1 J lin., glabrous, smooth except on the scabrid margins. 
Racemes 2-nate, one sessile, the otljer with a very short bare base, 
10-15 lin. long, 6-8-noded ; joints lj-l| lin. long, villous, hairs up 
to 1 J lin. long, tips irregularly denticulate ; pedicels slightly shorter. 
Sessile spikelet 3 lin. long, purplish. Lower glume grooved on the 
back, ciliate and sparingly hairy, upper ciliate- villous on the margin. 
Valve of upper floret awned ; awn 9-10 lin. long, kneed and twisted 
below the middle. Pedicelled spikelet <J, 3 lin. long, purplish. 
Mozambique Distr. German East Africa : Muani, Pospischil. 
According to K. Schumann this should be placed next to A. tenuiberbis, 
42. CYMB0P0G0N, Spreng. PLK s 'M..i\iy.W s 
Spikelets 2-nate, those of each pair differing in sex and more 
or less in shape — except those of the lowest pair of the lower 
or of both racemes which are homogamous or neuter) — one 
sessile, the other pedicelled on the articulate fragile rhachis of 
many- jointed paired racemes, terminating the culms and their 
branches ; raceme-pairs supported by a spatheole, collected into 
often decompound or supra-decompound spatheate panicles ; the 
fertile spikelets falling with the contiguous joint and the accompany- 
ing pedicel ; joints and pedicels filiform or linear with frequently 
more or less cupular or auricled tips, those of the lowest pair 
(raceme-base) often conspicuously swollen, oblong or barrel-shaped 
and hard. Florets 2, lower reduced to an empty valve, upper ^ in 
