404 
CLVII. GRAMiNEiE (Stapf). [Trackypogon 
hairy, tips very oblique. Subsessile spikelets rarely neuter, 
oblong to linear-oblong, 34-4 (rarely 5) lin. long, sparingly hairy to 
glabrous. Glumes subequal ; lower firmly charfcaceous, more or less 
convex on the back, very obtuse to truncate or obscurely 2-toothed, 
keels finely marginate and scabrid upwards, intracarinal nerves 7, 
very distinct upwards, with some transverse veins ; upper glume 
slightly longer, linear to linear-oblong, acute, thinner, 3-nerved, 
margins softly ciliate. Lower floret reduced to a narrow linear to 
linear-oblong acute faintly 2 -nerved ciliolate valve. Upper floret : 
valve similar to that of the lower floret, 2-toothed, sometimes mucro- 
nulate, 1-3-nerved, glabrous except the ciliolate teeth. Anthers 
up to 2J lin. long, tips minutely bearded. Fertile spikelets linear, 
34-4 long, with a sharply pointed bearded callus, about 1J lin. 
long. Glumes subequal ; lower convolute, subcoriaceous, obtuse, 
ciliolate near the membranous reddish tips, more or less pubescent 
or glabrescent and then often shining, about 11-nerved, with a few 
transverse veins ; upper slightly longer, linear, subobtuse, strongly 
3-nerved, ciliolate above. Lower floret reduced to an oblong obtuse 
hyaline ciliate 2-nerved valve. Upper floret ^ : valve linear, hyaline 
and 3-nerved below, cartilaginous above, passing into a slender 
flexuous silvery-grey awn, 1J-2J (rarely over 3) in. long, more or less 
kneed at or below the middle with the column usually so tightly 
spirally twisted that the margins close up and the spirals become 
obscured, slightly plumose from soft hairs about 1 lin. long, the 
bristle pale and with gradually decreasing short hairs, or merely 
hispidulous upwards. Anthers up to 2J lin. long. Stigmas up to 
1 lin. long. — Nash in North Amer. FI. xvii. 96. T. capensis , Trin. 
in Mem. Acad. Petersb. 6 me ser. ii. 257 ; Nees, FI. Air. Austr. 100 : 
Pilg. in Engl. Jahrb. xxx. 268. T. tmncatus , Anderss. in Ofvers. 
K. Yet. Akad. Forh. Stockh. 1857, 49. T . polymorphus , Eyles in 
Trans. Roy. Soc. S. Afr. v. 294. T. p., subvar. capensis, Hack, in 
DC. Monogr. Phan. vi. 326 ; Durand & Schinz, Consp. FI. Afr. 701 ; 
and Etudes FI. Congo, 314 ; Th. & Hel. Durand, Syll. FI. Congol. 
622 ; Stapf in Dyer, FI. Cap. vii. 331 (var.) ; var. tmncatus , 
Hack. l.c. 327 ; Durand & Schinz, Consp. FI. Afr. v. 702 ; var. 
Tholloni, Franch. in Bull. Soc. Hist. Nat. Autun, viii. 14 (of reprint), 
partly. Stipa capensis and S. spicata, Thunb. Prodr. 19-20 ; FI. 
Cap., ed. Schult. 106, 107. Heteropogon tmncatus , Nees, l.c. 102. 
Andropogon spicatus and A. tmncatus , Steud. Syn. PI. Glum. i. 368. 
Lower Guinea. Belgian Congo : Cataracts District ; Lutete, in dry sandy 
ground, 2000 ft., Hens, A. 222 ! Angola : Benguella ; country of the Ganguellas 
and Ambuellas, Gossweiler, 2422 ! 
South Central. Belgian Congo : Katanga ; Elisabethville, Rogers , 10903 ! 
Mozambique Distr. "German East Africa: Ubena, on laterite, 6000 ft., 
Goetze, 788 ! Rhodesia : Victoria, Monro, 907 ! Victoria Falls, Rogers, 5695* ! 
Salisbury District, Mundy ! Gazaland, Swynnerton, 1657* ! 1670* ! 
Also in South Africa, Madagascar and the hot parts of America from Texas 
and Arizona to the Argentine. 
