322 
Clvii. graMineje (Stapf). [ Hyparrhenia . 
finely filiform, shortly ciliolate, up to 1J lin. long, those of the 
homogamous pairs shorter, finely puberulous to almost glabrous. 
Homogamous pair of spikelets 1 at the base of each raceme. Fertile 
spikelet linear-oblong, subacuminate, dorsally flattened and rounded 
at the sides, including the callus 2-J lin. long, glabrous, pale with 
reddish tips ; callus 1 lin. long, bearded with white hairs, the uppermost 
of its own length. Glumes equal, thinly chartaceous, lower minutely 
truncate or 2-denticulate, reddish upwards, 9-nerved, the inner 3 or 5 
nerves more or less raised on the back particularly towards the tips ; 
margins very narrowly involute, inflexed in the upper quarter, 
keels fine, scabrid ; upper glume oblong, very shortly deltoid- 
acute to subtruncate, 3-nerved, ciliolate upwards. Lower floret 
reduced to a linear-oblong obtuse spreadingly ciliate nerveless 
hyaline valve. Upper floret ^ ; valve stipitiform with 2 small 
hyaline teeth, awn 1J to over If in. long, slender, column fulvously 
hairy, the hairs varying up to l-|-2 lin. ; anthers £ lin. long. Pedicelled 
spikelets (or neuter ?), linear-lanceolate, 2-2 J lin. long, glabrous; 
lower glume very acute, mucronulate to subaristulate, 11-nerved, 
upper acute, 3-nerved, ciliate ; valves hyaline, oblong, obtuse, 
reversedly ciliate, the lower sub-3-nerved, 2 lin. long, the upper 
shorter and narrower, 1 lin. long ; anthers 1 \ lin. long. Homo- 
gamous spikelets like the pedicelled but muticous. — Andropogon 
Barteri, Hack, in Flora, 1885, 124, and in DC. Monogr. Phan. vi. 635 ; 
Durand & Schinz, Consp. FI. Afr. v. 707 ; Cheval. Sudania, 88. 
Upper Guinea. Northern Nigeria : confluence of the Niger and Benue 
Rivers, Barter ! Lokoja, Dalziel, 295 ! Southern Nigeria : Awka District ; 
Agolo, Obu, Thomas ! Cameroons : Benue Basin ; Bogalo River, Macleod ! 
North Central. Upper Oubangui: basin of the Ombella, Kaga Do near 
Damba, Chevalier, 5948 ! 5925 ! 
Chevalier’s no. 5925 collected along with 5948 consists of specimens only 
f-1 ft. high, with spatheoles and peduncles somewhat longer than usual, but 
in other respects identical with the ordinary form. 
C 
Var. calvescens^ Stapf . More robust than the type, up to 10 ft. high. Culms 
up to 2f lin. in diam. ; ligules up to If lin. long ; blades up to 1 ft. by lf-2f lin., 
glaucous, smooth except upwards and along the margins, midrib sometimes 
stout towards the base, 2-3 of the lateral nerves more prominent than the others ; 
peduncles at length more or less equalling the spatheole ; the upper raceme 
with 2 homogamous pairs. Fertile spikelets more acuminate ; awns up to over 
2 in. long, their hairs not exceeding 1 lin. Pedicelled spikelets 3 lin. long.' — 
— } Andropogon filipendulus, var. 13 calvescens, Hack, in DC. Monogr. Phan. vi. 635 
(Schweinfurth’s specimens). 
Nile Land. Jur : Gbattas’ Great Seriba, Schweinfurth, 2332 ! 2421 ! Bahr 
el Jebel : Mongulla Province ; Gigging, Broun, 1447 ! Uganda : Nile Province, 
Dawe, 947 ! 
This may perhaps be a distinct species and it inhabits a distinct geo- 
graphical area, but the general aspect and the structure of the spikelets are so 
like those of typical H. Barteri that I hesitate to separate it specifically. 
( HiroWA 0 
17. H. filipendula A Stapf. Perennial, 3-5 (rarely 7) ft. high, 
tufted from an oblique often much-branched rhizome, covered with 
