Ichnanthus .] 
CLVJL GRAMINEiE (Stapf). 
745 
primary branches filiform, more or less angular or compressed, 
glabrous, rarely pubescent downwards, smooth below, scaberulous 
upwards ; lower primary branches distant (by up to more than 1 in.), 
the following much more approximate, solitary, erect or suberect, 
forming like the secondary branches of the lower part of the panicle 
shortly peduncled to sessile sparingly compound or simple racemes 
15-6 lin. long, and loose or moderately contracted ; pedicels 
unequal, where paired, one 1 lin. or less, the other up to over 
2 lin. long, angular, scaberulous, truncate. Spikelets lanceolate, 
acutely acuminate, about 2| lin. long. Glumes glabrous or finely 
hairy along the margins, lower two-thirds to over three-quarters the 
length of the lower floret, lanceolate in profile, more or less setaceously 
acuminate, 5-nerved, upper as long as or sometimes slightly shorter 
or longer than the lower floret, similar to the lower glume, but 
broader and mote oblong in profile with a shorter less narrow acumen 
or when flattened out shortly acute, prominently 7 -nerved. Lower 
floret imperfectly $ : valve similar to the upper glume but hardly 
acuminate, quite glabrous, 7 -nerved, finely keeled upwards ; valvule 
broad-oblong with wide flaps and scaberulous keels, more or less 
reduced ; anthers rudimentary. Upper floret oblong, obtuse, 
1 lin. by almost | lin., polished, white or pale brownish, on maturity 
with its median plane at right angles to that of the spikelet, the lower 
third of the margin occupied by a shallow whitish depression which 
on wetting swells out into a semitransparent narrow wing continued 
downwards along the supporting internode ; valvule hardened 
towards the minutely saccate base. — Doell in Mart. FI. Bras. ii. ii. 
290 ; Hook. f. FI. Brit. Ind. vii. 60 ; Hitchcock & Chase in Contr. 
U.S. Nat. Herb, xviii. 334. Apluda Zeugites, AuhL Hist. PL 
Guian. ii. 933, excl. syn. ; not of Linn. Panicum pollens, Sw. 
Prodr. 23, & FI. Ind. Occ. i. 164 ; Kunth, Enum. i. 89 , Nees, 
Agrost. Brasil. 137 ; Trin. Pan. Gen. 232, in Mem. Acad. Petersb. 
6me ser. iii. 320, and Sp. Gram. Ic. t. 211 ; Steud. Syn. PI. Glum. i. 93 ; 
Griseb. FI. Brit. West Ind. 550. P. vicinum, Bailey, Syn. Queensl. 
FI. Suppl. iii. 82. 
Upper Guinea. Sierra Leone : Mamaha, Thomas , 4635 ! 4571 ! Cameroons : 
Efulen, Bates, 271 1 
Also throughout tropical America and a large part of the Indo -Malayan region 
as far as New Guinea and Queensland. 
72. CYRT0C0CCUM, Stapf. 
Spikelets obliquely obovate to semi-obovate, laterally much com- 
pressed, falling entire from the pedicels of very loose and open or 
contracted and dense panicles ; lower floret barren with or without a 
valvule ; upper floret about as long as or almost as long as the lower, 
<J>. Glumes thinly membranous, unequal to subequal, 3-5-nerved. 
Lower floret : valve similar to the upper glume ; valvule, if present, 
narrow, 2-nerved. Fertile floret : valve narrowly boat-shaped, 
