CLVII. GrRAMINEiE (Stapf). 
647 
Panicum.'] 
f Spikelets usually in pairs, contiguous and shortly 
pedicelled at the ends of long finely filiform 
sparingly divided more or less flexuous 
branches and their branchlets ; panicles 
terminal, up to 20 in. long when mature, 
widely open ; lower floret barren with a much 
reduced ovate or triangular valvule with 
obscure basal flaps. 
Culms sheathed up to the panicle which 
emerges with a sheaf of branches from the 
uppermost sheath ; its divisions finely 
filiform to capillary ... 
Culms exserted from the uppermost sheath with 
most of the leaves near the base ; the 
divisions of the panicle never capillary . . . 
tfSpikelets usually distant often on long pedicels 
or relatively shorter and more numerous 
branchlets ; panicles terminal and lateral, 
2-6 in. long ; lower floret barren with a 
valvule the length of the valve and with 
distinct flaps. 
Panicles just exserted from the supporting 
sheaths : upper glume and lower valve 
9 -nerved or the former 7 -nerved. 
Panicles 3-6 in. long, glabrous, equalled by 
the uppermost blades ; longest blades 
up to 8 in. by 3-5 lin. ; valvule of lower 
floret with almost contiguous flaps ; 
mature false fruits pale olive-brown . . . 
Panicles 2-3 in. long, finely hairy all over, 
much exceeding the upper blades ; the 
longest blades up to 1 in. by l|-2 lin.; 
valvule of lower floret with the flaps 
reaching up to § of the valve ; mature 
false fruits dark chestnut-brown to black ; 
a delicate grass ... 
Terminal panicles at length distinctly exserted, 
lateral panicles few and mostly poorly 
developed ; grains dark brown to jet black. 
Upper glume and lower valve 9-nerved ; flaps 
of valvule of lower floret very narrow 
upwards ; blades almost glabrous 
excepting the tubercle-based hairs of 
the margins and the dorsal midrib, 3-8 in. 
by 3-6 lin. 
Upper glume and lower valve 7-nerved or 
the former 5-nerved ; flaps of valvule 
of lower floret broad all along, con- 
tiguous or almost so ; blades usually 
hirsute on both sides apart from the 
margins and midrib, 1-4 in. by 2-4 lin. 
**Spikelets mostly 2-nate from low down on the 
penultimate divisions of an open panicle (3-4 in. 
by 1-3 in.), with frequently curved branches ; 
upper glume 7-, lower valve 9-nerved; lower 
floret barren with a slightly shorter narrow- 
flapped valvule 
53. P. Kerstingii. 
54. P. pansum. 
aJl 1^' 
55. P. laetum. 
56. P. sociale. 
57. P. novemnerve. 
58. P. atrosan- 
guineum » 
59. P. arcurameum. 
