768 cl vn. gramineje (Stapf). [Scicciolepis. 
ovate, subacute, very concave, rigid, 9-nerved. Lower floret barren : 
valve like the upper glume and of about equal length but obtuse, 
9-nerved ; valvule 0. Upper floret much shorter than the lower, 
obtuse, almost white, polished ; the tip of the valve slightly incurved. 
Upper Guinea. Togo : Sokode-Basari, Kersting , 595. 
This species seems to come very near to S. auriculata, but to differ in the 
presence of stolons, stout culms, very large auricles (quam maxime triangulatim 
auriculigeris), very long blades and spikes with a stout axis and stout pedicels. 
75. SETABJA, P. Beauv. Agrost. 51, t. xiii. fig. iii. 
Spikelets oblong to ovate in outline in dorsal view, very convex 
on the back, flattened or slightly depressed in front, hence oblique 
in profile, falling entire from the pedicels, subtended by 1 to many 
persistent bristles (modified branchlets), gathered into contracted 
spike-like or more or less open panicles ; lower floret or barren and 
sometimes reduced to its valve ; upper floret Glumes mem- 
branous, unequal, the lower generally much smaller, ovate from a 
clasping base, mostly 3-5- (rarely 1- or 7-) nerved ; upper similar to 
the lower but longer or corresponding in size and outline to the 
spikelets (in dorsal view), 5-7- (rarely 3- or 9-) nerved. Lower floret 
usually equalling the upper floret or slightly exceeding it : valve 
corresponding in size and outline to the spikelet (in front view), 
membranous, 5-, rarely 7-nerved, flat or depressed longitudinally ; 
valvule if fully developed almost as long as the valve, oblong to 
elliptic-oblong, acute, sharply keeled or the keels marginate or 
narrowly winged. Upper floret : valve very convex on the back or 
boat-shaped, more or less apiculate, crustaceous, very finely pitted 
or more often transversely rugose ; valvule subequal to the valve 
and similar in substance, embraced all along by the involute margins 
of the latter up to its more or less prominent keels. Lodicules 2, 
broadly cuneate. Stamens 3. Styles distinct ; stigmas laterally 
exserted upwards. Grain tightly enclosed by the hardened valve and 
valvule, oblong or ellipsoid in outline ; hilum basal, punctiform or 
orbicular ; scutellum about half the length of the grain. — Perennials 
or annuals of various habit ; ligule usually reduced to a ciliate rim ; 
panicle mostly cylindric with the solitary or clustered spikelets on 
very stunted branches which are hiore or less produced into bristles 
beyond the spikelets or divided into a one-sided involucre of bristles, 
or the panicle more or less open with elongated branches and more 
distant spikelets, often with or without subtending bristles in the 
same inflorescence. 
Species up to 100 in the warm regions of the world, a few common as weeds 
in the more temperate parts. 
The reasons for the retention for this genus of the name Setaria, in 
preference to the name Chcetochloa employed by Lamson-Scribner, are explained 
in detail in the Kew Bulletin for 1920. 
