<642 
CLVII. GRAMINEiE (Stapf). 
Spikelets 1^-2 lin. long, in smaller panicles 2-4 in. by 
l§-3 in. ; upper glume and lower valve 9-1 1 -nerved. 
Lower glume acute, 5-nerved ; spikelets under 2 lin. 
long. 
Panicle somewhat stiff with the rather short pedicels 
mostly contracted on the branchlets 3. 
Panicle flexuous, very loose and delicately branched 
with many of the pedicels long (up to 5 lin.), very 
flexuous and spreading ... ... ... ... 4. 
Lower glume truncate, 9 -nerved ; panicle very loose ; 
spikelets 2 lin. long ... ... ... 5. 
,5^ t * Ayv 
III. Maxima. 
Fertile valve and valvule finely transversely rugose ; 
panicles large, floribund ; blades long (up to 1|- or even 
2 ft.). 
Lower secondary and tertiary divisions of the panicle 
usually elongated (the former up to 3 in.) and more 
or less spreading, hence the spikelets more or less 
scattered ; lower valve rounded on the back, 
faintly nerved 6. 
Secondary and tertiary divisions of the panicle very 
short, the spikelets in long spiciform racemes on a 
common axis ; lower valve depressed on the back 
with the midnerve usually sunk in a groove ... 7. 
Fertile valve and valvule quite smooth, polished ; panicles 
from a few to 6 in. long. 
Culms rather firm to almost woody, many-noded, more 
or less anfractuous, rambling or climbing ; blades 
linear-lanceolate to lanceolate, 1^—6 in. by 3-7 lin. 
Axis of panicle and peduncle with long very fine 
spreading hairs ; spikelets obtuse to subobtuse ; 
lower glume minute, nerveless ; lower floret 6. ... 8. 
Axis of panicle and peduncle glabrous ; spikelets 
acute ; lower glume of the spikelet,- 1 -nerved ; 
lower floret barren with a rudimentary valvule ... 9. 
Culms stout, very spongy ; blades very narrow, up to 
1 ft. by 1J lin., more or less spongy ; upper glume 
7-, lower 9-nerved ,10. 
IV. V ERRUCULOSiE. 
Perennial. 
Leaf-blades setaceously convolute or if unrolled not much 
over 1 lin. wide, never keeled ; compactly csespitose 
grasses with 1-2-noded culms, nodes faintly marked. 
Short grasses, up to 1 ft. high with small panicles 
(1-3 in.). 
Spikelets quite glabrous, about f lin. long, more or 
less acute or apiculate : compactly csespitose, 
with persistent coats of pale firm sheath- bases, 
blades finely setaceous ... ... ... ... 1 1. 
Spikelets pubescent, £ lin. long, more or less obtuse ; 
more loosely csespitose with few brown or 
purplish and loose basal sheaths, blades 
[. Panicum . 
P. lineatum. 
P. adenophorum 
P. flacciflorum. 
P. maximum » 
P. infestum. 
P. trichocladum. 
P. transvenulo- 
sum. 
P. spongiosum. 
P * hrazza- 
villense. 
P. ianthum. 
