318 
clvii. GRAMINE.E (Stapf). [Hyparrkenia. 
None of them has been seen bv me, except Pappi, no. 4807, which is quoted 
above. p ' 
13. H. soluta ^Stapj! Annual (?), 4-5 ft. high. Culms in scanty j 
fascicles, erect, stout, glabrous, simple and 3-noded below the 
panicle, sparingly rooting from the lower nodes. Leaf-sheaths 
terete or upwards keeled, tight, firm, glabrous and smooth ; ligules 
scarious, oblong, 14 lin. long ; blades linear from a hardly attenuated 
base, very long and finely tapering upwards, up to over 1 ft. by 4 lin., 
firm, glabrous, scabrid along the margins, otherwise smooth, midrib 
wide and whitish or pinkish on the upper side, primary lateral 
nerves 3 on each side. Spatheate panicle large, subeffuse, up to 
2 ft. by over \ ft., of 6 or 7 distant, upwards up to 8- (or more-) 
rayed mostly mixed tiers ; compound rays few with each tier (the 
lowest tier 2-rayed), 3- or 2-noded, up to § ft. long, slender, glabrous, 
simple rays filiform, more or less compressed and angular, 1-2 in. 
long ; lower and intermediate subtending leaves resembling the 
preceding leaves, but with much narrower and upwards' shorter 
blades. Spatheoles very narrow, at length inrolled, tapering to 
a fine point, up to over 2-2J in. long, glabrous, reddish' ; peduncle 
filiform, equalling or more usually exceeding the spatheoles and 
exserted from them subterminally, arching or recurved in a semi- 
circle upwards, but straightened out after the shedding of the 
racemes, minutely pubescent with long fine white tubercle-based 
hairs from the curvature. Racemes parallel, nodding, at length 
epinastically reflexed, slender, f-1 in. long, 8-11-awned per pair, 
pale, loosely and finely greyish- villous, lower with a short, upper 
with a long (1-1J lin.) base, both slender except for the swollen 
epinastic cushions, pubescent in the fork, otherwise glabrous or 
with a few short or long hairs, very obliquely truncate and 
narrowly auricled ; joints 5-6, filiform, subobliquely truncate, 1J 
lin. long, shortly ciliate, cilia white, J lin. long ; pedicels similar, 
slightly longer. Homogamous pair of spikelets 1 at the base of the 
lower raceme only, or 0. Fertile spikelets linear-oblong, including 
the callus about 1 J lin. long, pale or slightly tinged with pink ; callus 
slender, subacute, 4-f lin. long. Glumes equal, chartaceous ; lower 
minutely truncate, thin, almost membranous, more or less finely 
hairy (hairs white), dorsally flattened, margins narrowly involute 
and upwards indexed, keels short, fine, scaberulous, nerves 9-11, 
of which 5 are intracarinal, evanescent below ; upper glume mem- 
branous, 3-nerved, sparingly hairy above. Lower floret reduced 
to a broad-oblong truncate hyaline reversedly ciliate valve, If lin. 
long. Upper floret ^ : valve stipitiform, minutely 2-dentate, 
eciliate ; awn 2 in. long, column dark-brown, fulvous -puberulous, 
bristle pale ; valvule 0. Anthers 1 lin. long. Grain oblong, ?dorsally 
slightly compressed, If lin. long. Pedicelled spikelets lanceolate, 
acute, up to 3| lin. long, sparingly hairy or almost glabrous ; lower 
glume 11-nerved with scabrid keels, upper as in the sessile spikelets ; 
valves hyaline, upper narrowly cuneate, 1 lin. long, nerveless. — 
