280 
cl vn. gramineje (Stapf). [Cymhopogon. 
rather loose, 4-5 (or sometimes 6) lin. long, pale green, slightly 
tinged with red or dull purple to dark dull violet, loosely villous, one 
subsessile, the other with a hairy base, J-§ lin. long, the base of the 
subsessile raceme very much shorter and stouter, the adjacent pedicel 
short, linear, not swollen; fertile joints slender, filiform, §-l lin. long, 
hairy on the back and sides, cilia up to 1 lin. long, spreading, tips 
cupular, cupule unequally 2-auriculate ; adjacent pedicels very 
similar, but longer (over 1 lin.) . Homogamous pair of spikelets 1 at the 
base of the sessile raceme. Fertile spikelets oblong to oblanceolate- 
oblong, 2-2| lin. long, pale or more or less tinged with dull purple, 
glabrous ; callus short, obtuse, shortly bearded. Glumes subequal, 
thinly chartaceous ; lower minutely 2-toothed, usually more or 
less depressed downwards, often with 1 or 2 faint transverse ridges 
across the depression, keels narrowly winged, wings white or reddish, 
intracarinal nerves 2-4 above the middle, like the keel-nerves green 
or violet ; upper glume boat-shaped, acute, acutely keeled, 1-nerved, 
margin broadly hyaline, ciliate upwards. Lower floret reduced to 
a linear or lanceolate-oblong hyaline nerveless ciliate valve, almost 
2 lin. long. Upper floret ^ : valve very narrow, linear, 2-fid almost 
or quite to the middle, hyaline and strongly 1-nerved below, segments 
subulate, linear, ciliolate, awn very fine, 2J-3 lin. long, bent at and 
twisted below the middle, column smooth, bristle spreading at a right 
angle or deflexed. Anthers almost 1 lin. long. Pedicelled spikelets 
(J, oblong, subobtuse, 2-2J lin. long, glabrous, darker coloured than 
the sessile. Glumes equal, thinly chartaceous ; lower with acute 
keels and 3-5 intracarinal nerves, upper 3-nerved, ciliolate ; valve 
linear-oblong, obtuse, almost equalling the glumes, sub-2-nerved, 
ciliolate ; anthers 1 lin. long. 
Nile Land. Uganda : Kipayo, (in grassland; Dummer, 445 ! Kavirondo, 
very common, 4000-5000 ft.j Scott Elliot , 7021 ! Buddu ; common in sandy 
soil, Scott Elliot , 7080! Ruwenzori; Kivata, 6000 ft.,) Scott Elliot , 7581! 
British East Africa : Aberdare Mountains, James !(and without precise locality, 
Powell, 21 \ 
Here belongs probably the Andropogon Nardus, var. marginatus of Pilger 
(in Mildbr. Wiss. Ergebn. Deutsch. Zentr.-Ajr. Exped. ii. 44) from Bukoba 
District, between Ituri and Buddu Forest, Mildbraed, 100. Andropogon 
Nardus, var. marginatus, Hack. ( = Cymbopogon marginatus, Stapf) is a much 
smaller plant with less compound panicles and broader winged keels. 
9. C. validus, Stapf ex Burtt-Davy in Ann. Transvaal Mus. iii. 121, 
129. Perennial, 4-7 ft. high, compactly csespitose, the intravaginal 
innovations more or less coated with long slender gradually breaking 
up sheaths. Culms erect, terete, stout, up to over 2J lin. thick, 
4-5-noded and simple below the panicle, glabrous, rarely pubescent 
towards the nodes, smooth ; lower internodes up to over 1 ft. long. 
Leaf -sheaths terete, firm, finely striate, the basal up to 1 ft. long, 
more or less widened below, the outer of them shortly hairy to sub- 
tomentose at the base, usually soon glabrescent, the others mostly 
