160 
clvii. gr AMINES (Stapf). [Chrysopogon. 
1. C. montanus, Trin. in Spreng. Neue Entdeck. ii. 93, var. tremu- 
lus, Stapf. Perennial, compactly csespitose, up to 3 ft. high. Culms 
slender, 4-6-noded, erect, more or less compressed downwards, 
glabrous. Leaf-sheaths quite glabrous and smooth, the lower 
crowded, laterally compressed, keeled, subflabellate-imbricate, the 
upper shorter ; ligules reduced to a minutely ciliolate rim ; blades 
linear, acute, plicate or opening out, at the base passing impercep- 
tibly into the sheath or the upper slightly contracted, up to over \ ft. 
by 2 lin., somewhat firm, pale green to glaucous, quite glabrous or 
with a few tubercle-based stiff hairs at the lower margins, smooth, 
midrib very slender, lateral nerves about 3 on each side. Panicle 
shortly exserted, erect, ovate-oblong, 3-4 in. long, loose or some- 
what contracted ; rhachis very slender, smooth ; branches in about 
5 or 6 whorls of up to 10 rays, finely filiform, J to over 1 in. long, 
almost quite smooth, flexuous, tips slightly thickened and oblique, 
minutely ciliate ; pedicels gradually thickened, glabrous below, 
ciliate-bearded upwards, 1J lin. long ; uppermost hairs 1J lin. long, 
bright fulvous. Sessile spikelet linear-subulate (seen from the back), 
acute, 3-4 lin. long, pale. Glumes chartaceous, laterally much com- 
pressed, glabrous ; lower distinctly shorter, 4-nerved, keel minutely 
scabrid upwards ; upper 3-nerved, keeled, keel hispidulous towards 
the tip, produced into a scaberulous bristle of the length of the glume. 
Valve of lower floret lanceolate, up to almost 24 lin. long, of upper 
up to 14 lin. long, 1-nerved ; awn f-1 in. long, pale. Anthers 1J lin. 
long. Pedicelled spikelet as long as the sessile, narrowly lanceolate, 
glabrous. Glumes thin, almost membranous, lower 7-nerved, pass- 
ing into an awn up to 2 lin. long ; upper of equal length with a fine 
point, 3-nerved, hyaline margins reversedly ciliate. Valves linear, 
2-2J lin. long, muticous, delicately hyaline, reversedly ciliate, lower 
finely 3-, upper 1-nerved. — A. monticola, var. Trinii, Stapf in Dyer, FI. 
Cap. vii. 349. A. tremulus , Hack, in Bull. Herb. Boiss. 2 me ser. i. 764. 
Mozambique Distr. Portuguese East Africa : Boruma, Menyharth. Rho- 
desia : Victoria Falls, Rogers , 5712 ! 
Also in South Africa and Madagascar. 
One of the several races which constitute the rather polymorphic species C. 
montanus, Trin., whose area includes Southern^ Africa, Madagascar and India. 
The var. tremulus approaches very closely thewar. elatior, Stapf, a large-spike- 
leted parallel to the var. serrulatus, Stapf \Chrysopogon serrulatus, Trin.), and 
differs from it apparently only in the almost quite smooth rhachis and branch- 
lets (a few sharp-pointed hairs may be found under a high power) and the 
pedicels, which are glabrous almost up to the middle, and not ciliate from the 
base. The type from which the species was originally described has much 
smaller spikelets and is distributed through India from Ceylon to Lower Bengal. 
A plant collected in Madagascar ( Perrier de la Bdthie, 30 !) may be referred to 
var. tremulus. 
2. C. Aucheri, Stapf, var . quinqueplumis, Stapf in Kew Bulletin , 
1907, 211, partly. Perennial ; stem-bases elongated, wiry almost 
woody, abundantly and fastigiately branched, the branches forming 
fascicles of culms and short leafy branches covered below them with 
