Hyparrhenia.] clvii. gramine^e (Stapf). 
325 
Hack.), and in the Philippines. Andropogon lachnatherus, Benth. (A. fili- 
pendulus, var. lachnatherus, Hack.), from Australia, is also conspecific. Its 
spikelets are much less hairy than those of the Angolan and British East African 
plants referred here to the variety pilosa. The Khasia plant quoted under 
Andropogon filipendulus in Hook. f. FI. Brit. India, vii. 210, is a perfectly distinct 
species of Hyparrhenia. H. filipendula is often found on abandoned planta- 
tions, and its occurrence in India, Malaya and Australia may possibly be due to 
casual introduction. „ _ . \ 
. COTjuu*.) 
1 18. H. familiaris^ Staff. Perennial, csespitose, 2 to over 6 ft. 
high. Culms rather slender to moderately stout, terete, smooth, 
glabrous, simple and few-noded below the panicle. Leaf-sheaths 
glabrous, terete and tight except the lowest which are compressed 
and inclined to slip off the culm ; ligules scarious, truncate, reddish, 
ciliolate ; blades linear from a gradually attenuated or almost 
equally wide base, long-tapering to a fine point, up to 1 ft. by 1-3 
lin., dull green, flexuous or rigid, glabrous, rough upwards, margins 
scabrid, midrib slender, primary nerves 3-4 on each side, slender. 
Spatheate panicle leafy, narrow, lax, up to 2 ft. long ; primary 
internodes 4-7, the lowest up to over 8 in. long, the following very 
gradually decreasing, the uppermost much shorter : lower tiers of 
2 or 3 compound 2-3-noded rays, up to f ft. long, bearing secondary 
tiers only, the following mixed, 3-5-ray ed, the uppermost of up to 
6 simple very slender rays, 3-2 in. long and scantily bearded at the 
insertion of the spatheole — or the whole inflorescence very much 
reduced with only 2 or 3 tiers of simple rays ; lower subtending 
leaves resembling the preceding leaves, the following with inflated 
sheaths and narrow blades, which often overtop the panicle, the 
uppermost spatheoloid. Spatheoles linear-lanceolate, 2-3 in. by 
1-1J lin., scarious, reddish-brown, glabrous, at length inrolled 
and very narrow ; peduncles slender, filiform, with a beard of white 
or yellowish spreading hairs below the tips, usually permanently 
enclosed in and always shorter than the spatheole, straight when 
mature. Racemes subparallel or more or less spreading, loose, 
up to 1 in. long, 3-5-awned per pair, olive-green tinged with purple 
or brownish, the lower subsessile, the other with a slender 
filiform glabrous or subglabrous base, 2-2 J lin. long ; joints fili- 
form, ciliate, over 1 lin. long, very obliquely truncate and sub- 
auriculate ; pedicels filiform, ciliate, 2 lin. long. Homogamous pairs 
of spikelets 1 at the base of the lower, 2 (normally) at that of the 
upper raceme. Fertile spikelets linear-oblong, flattened on the back 
upwards, rounded on the sides, including the callus 3-3J lin. long, 
reddish upwards, glabrous ; callus slender, very acute, up to over 1 
lin. long. Glumes equal, chartaceous, the lower narrowly truncate, 
finely 9-nerved, nerves rather distinct towards the hyaline teeth, 
margins involute, indexed in the tips, keels very short, scaberulous ; 
upper glume deltoid-truncate, narrowly oblong-boat -shaped, 3- 
nerved, spreadingly ciliate upwards. Lower floret reduced to an 
oblong very obtuse faintly 2-nerved reversedly ciliate hyaline valve. 
