186. Styles united at the base. Stigmas spirally twisted. Spikelets in one-sided spikes or spike-like racemes, 2-flowered, very rarely 3-4-flowered. Glumes many-nerved; the outer ones unarmed, the flowering ones awned. Leaves transversely veined. (See 103.) =Streptogyne= Beauv. Styles free. Spikelets in sometimes spike-like panicles or in heads. 187 187. Spikelets in spike-like panicles, falling singly and entire, 2-flowered, very rarely 3-4-flowered, the uppermost flower male. Glumes awned or mucronate. (See 130.) =Fingerhuthia= Nees Spikelets in heads or head-like panicles or in fascicles arranged in spike-like panicles, not falling entire. 188 188. Spikelets in fascicles arranged in slender spike-like panicles, rarely in heads, and then stamen 1. Glumes 1-3-nerved, mucronate or awned. Spikelets 3-7-flowered.--Species 2. Central Africa. =Elytrophorus= Beauv. Spikelets in head-like panicles. Stamens 3. 189 189. Glumes 4-7-nerved, long-awned. Spikelets 3-7-flowered. Panicles enveloped by the sheath of the uppermost leaf. Leaves awl-shaped.--Species 1. South Africa. =Urochlaena= Nees Glumes 1-3-nerved, not awned, but sometimes mucronate. Leaves flat. 190 190. Spikelets 2-3-flowered, in spikes arranged in heads enveloped by the sheath of the uppermost leaf.--Species 1. North-west Africa (Morocco). (Under _Ammochloa_ Boiss.) =Dictyochloa= (Murb.) Camus Spikelets 7-15-flowered. Inflorescence not enveloped by a sheath. Species 2. North Africa. =Ammochloa= Boiss. 191. (185.) Spikelets 2-flowered, the lower flower hermaphrodite, the upper female. Axis of the spikelet elongated between the flowers, but not continued beyond them. Glumes unarmed, with faint nerves. Spikelets in loose panicles.--Species 1. Madagascar. =Coelachne= R. Br. Spikelets 2-flowered, both flowers hermaphrodite or the lower flower hermaphrodite, the upper one male or rudimentary, or 3-many-flowered. 192 192. Flowering glumes 1-3-nerved. [Subtribes TRIODIINAE and ERAGROSTINAE.] 193 Flowering glumes 5-many-nerved. 207 193. Flowering glumes 2-4-toothed or-cleft, rounded on the back, at least at the base. 194 Flowering glumes entire or obscurely toothed, rarely (_Diplachne_) distinctly 2-toothed and sometimes awned from the notch, but then keeled. 196 194. Flowering glumes with 3 rather obtuse lobes.--Species 1. North-west Africa. =Triodia= R. Br. Flowering glumes with 2 acute lobes and an awn or mucro between them. 195 195. Flowering glumes with a long awn, the upper ones empty. Outer glumes unequal. Spikes approximate, almost digitate.--Species 1. South Africa. =Lophacme= Stapf Flowering glumes with a short awn or a mucro. Outer glumes subequal.--Species 2. Central and South Africa. (Under _Diplachne_ Beauv.) =Crossotropis= Stapf