688 
CL VII. GRAMINEJE (Stapf). 
I" Panicum. 
Upper Guinea. Gambia, Don (?) ! French Guinea: on flooded land and 
along streams in the valley of the Baffing river, Pobeguin, 1720 ! 1721 ! 1730 ! 
French Sudan : Kouroussa, Pobeguin , 493 ! between Nyamina and Ivoulikoro, 
Chevalier , 2272 ! Segu, Lecard, 251 ! 253 (partly) ! San, Chevalier, 2273 ! 
near Mopte and Djenne, Chevalier, 2189 bis ! 2190 ! 24950 ! Northern Nigeria : 
Katagum Distr., Dalziel, 258 ! Abinsi, Dalziel, 905 ! Nupe ; in moist places, 
Barter, 728 ! near Lokoja, Dalton ! Southern Nigeria : Lagos ; in Ikoyi bush, 
Dalziel, 1328 ! 1330! Aboh, Barter, 343! Cross River Distr.; Ogurude, 
Holland, 280 ! 
North Central. Shari Territory: Bahr Salamat, Chevalier, 10511 ! Central 
Shari ; region of Lake Iro, Kabas-Solo, Chevalier, 8936 ! Koulfe, Chevalier, 
8956 ! 9090 bis ! 
Nile Land. Bongoland : Dukutto by the Roah river, Bchweinfurth, 2756 ! 
Lower Guinea. Belgian Congo : Stanley Pool Distr. ; Muschie, Vanderyst, 
3903 ! sandbanks near Chenul, Vanderyst, 5178 ! Kimpese, Vanderyst, 4388 ! 
Mozambique Distr. Southern Rhodesia: Victoria Falls, Rogers, 5717 ! 
42. P. Rowlandii, Stapf. Perennial, 1J-3 ft. high. Culms erect 
or geniculately ascending, slender, up to 9-noded, branched below or 
almost all along, smooth, sometimes slightly glaucous below the dark 
nodes. Leaf-sheaths firm, terete, tight, finely striate, all quite 
glabrous or minutely bearded at the mouth ; ligule reduced to a 
narrow ciliolate rim ; blades linear from an equally wide base, long- 
tapering to a fine point, up to over 1 ft. by 1-2 lin., firm and tough, 
flexuous, dull green, quite glabrous, slightly rough on the margins 
and sometimes towards the tips, otherwise smooth on both sides, 
midrib slender or inconspicuous, lateral nerves close, the primary 
(about 3 on each side) usually little differentiated. Panicle oblong, 
contracted, 6-12 in. by about 2 in., divided to the fourth degree ; 
primary axis slender, terete or grooved below, angular upwards, 
quite glabrous, scaberulous upwards ; primary branches either 
solitary or approximate in pairs or false whorls, the lowest 3-6 in. 
long, undivided for rarely more than \ in., then loosely branched or 
upwards more closely branched, all divisions filiform to almost 
capillary, scaberulous ; pedicels very slightly thickened upwards, 
the lateral very short to 1 lin. long. Spikelets more or less gaping, 
from slightly over 1 to If lin. long, quite pale or tinged with 
purple, glabrous. Glumes membranous, obscurely nerved ; lower 
obliquely ovate in profile, acute or acuminate and minutely 
mucronate, appressed except the tips, half to two-thirds the length 
of the lower floret, 5-nerved, midnerve prominent upwards 
and scaberulous ; upper obliquely oblong in profile, acuminate, 
with the acumen hardly recurved, 5- to sub-7-nerved. Lower 
floret rj : valve very similar to the upper glume and about as long, 
5-nerved ; valvule slightly shorter than the valve ; anthers f lin. 
long. Upper floret §, elliptic, oblong, obtuse, 1| lin. long, glossy 
and smooth, valve and valvule subcrustaceous. 
Upper Guinea. Southern Nigeria : near Lagos, Rowland ! at the edge of a 
marsh, Dalziel, 1329 ! on the Quorra, on dry ground, Vogel, 24 ! 
Very near P. agghanoneurum, but of slender growth with branching culms and 
much narrower leaves. 
