Panicum.] clvii. gramine^i (Stapf). 669 
green, quite glabrous except for some long hairs behind the ligule or 
more or less loosely hairy above or on both sides, midrib very 
slender, lateral nerves numerous, close, not differentiated, margins 
smooth or nearly so. Panicle erect, ultimately long-exserted from 
the uppermost sheath, loose and open, 2J-5 in. by 1-1 J in. or more or 
less contracted, divided to the third or fourth degree ; common axis 
terete, slender, smooth, lowest internodes J-f in. long or irregularly 
longer and shorter ; lowest primary branches divided from the base 
(sometimes the lowest branchlets arrested), forming very unequal 
fascicles or false whorls, like the following obliquely erect, the 
longest up to half the length of the panicle, finely filiform, slightly 
rough or almost smooth ; ultimate divisions subcapillary, rather 
contracted ; pedicels usually moderately unequal, the lateral J-1J 
lin., the terminal 2 (sometimes 3) lin. long, tips minutely discoid. 
Spikelets very turgid, ovate- or elliptic-rotundate in outline, obtuse, 
| to almost 1 lin. long, pale olive-green with a very marked bronzy 
lustre, quite glabrous. Glumes thinly membranous, very concave, 
obtuse, unequal, the lower narrow, half to three-quarters the length 
of the spikelet, faintly 3-nerved, the upper much broader, semi- 
elliptic in profile, as long as the spikelet, finely and prominently 
5-nerved. Lower floret : valve very similar to the upper glume ; 
valvule slightly shorter ; anthers up to f lin. long. Upper floret fcjf, 
elliptic in outline, subacute, \ lin. long ; valve and valvules thinly 
papery, minutely verrucose, whitish ; anthers § lin. long. 
Upper Guinea.. Southern Nigeria : Lagos, by water, MacGregor. 166 ! 
Nile Land. Uganda : hillsides near Kipayo, 4000 ft., Bummer, 593 ! Horma 
Road, Fyjfe, 159 ! and without precise locality, Maitland, 48, Alt] 
Lower Guinea. French Congo : dry land near Niouwana, Lecomte, C. 23 ! 
Belgian Congo : Stanley Pool Distr. ; Kisantu, Gillet, 478 ! . 659 ! 
23. P. nervatum A Staff. Perennial, about 2 ft. high, scantily 
tufted. Culms erect from a geniculately ascending base, very slender, 
simple, 5-8-noded, with the lower nodes shortly and the upper long- 
exserted, smooth and glabrous. Leaf-sheaths tight, terete, quite 
glabrous, rather thin, prominently striate ; ligule a membranous 
ciliolate rim, up to J lin. high ; blades linear from an equally wide 
base, long-tapering to a slender point, 2-3 in. by 1-1 J lin., flat, 
flaccid, spreading, quite glabrous or delicately and very sparingly 
hairy below, more or less rough on the upper face and margins, 
midrib very slender, whitish below, lateral primary nerves 2 or 3 
on each side, differentiated only below. Panicle at length long- 
exserted, narrow or more or less effuse, 3-5 in. long, somewhat 
sparingly and very loosely divided up to the third degree ; common 
axis filiform, striate, smooth, lower internodes f-| in. long ; lower 
primary branches usually with a long fine branchlet from the base 
or near it, then bare for 1-J in., then more closely divided, finely 
filiform, usually almost smooth, rarely rough : ultimate divisions 
scanty, capillary, flexuous ; pedicels unequal, 1-3 lin. long, with 
