734 
CLVII. GRAMINEiE (Stapf). 
[. Panicum . 
rough from very minute thin- walled papillae which are appressed and 
directed forward ; anthers J lin. long. — Eyles in Trans. R. Soc. S. 
Afr. v. 300. 
Nile Land. Eritrea : Keren ; Boga Valley, Steudner, 1009 ! British East 
Africa : Kibwezi, Kdssner, 710 ! 
Mozambique Distr. Northern Rhodesia: near Mumbwa (15° S. 28° E.), 
Mrs. Macaulay, 75 ! Livingstone, in sand, 3000 ft., Rogers , 7034 ! 
Imperfectly known species . 
89. P. Bossii, Tropea in Boll . Ort. Bot. Giord. Col. Palermo , x. 100. 
Annual. Culms erect, simple or branched upwards with brown 
slightly thickened nodes. Leaf-sheaths sparingly tubercled ; blades 
broad-linear, acuminate, flat, ciliate- denticulate at the base. Panicle 
erect, large, rather wide and loose ; branches solitary, capillary, 
hardly horizontal (patentibus) ; pedicels stiff. Spikelets pale green, 
ovate, acute. Lower glume minute, obtuse ; upper acute, obsoletely 
5- nerved. Lower floret barren. Upper floret Q ovate, subacute, 
smooth, yellowish : valve and valvule coriaceous. 
Nile Land. Italian Somaliland : Benadir ; near Giumbo, Macaluso. 
Said to be allied to P. coloratum, Linn., and P. repens, Linn. The description 
is too incomplete to suggest to me any definite affinity. 
90. P. buluwayense, Hack, in Proc. Rhodesia Scient. Assoc, vii. 
part ii. (1908) 69, and in Fedde, Repert. vi. 323. Perennial, up to 
1J ft. high. Culms compressed, simple, 3-4-noded, quite glabrous. 
Leaf-sheaths rather loose, the lower compressed and keeled, the 
upper terete, ciliate along the margins, hirsute with tubercle-based 
hairs, pubescent at the nodes ; ligule reduced to a fringe of cilia ; 
blades linear-lanceolate from a narrow base (the lower) or from a 
rotundate base (the upper), gradually tapering to a slender point, 
6- 8 in. by 74 lin., firm, green, glabrous, scabrid along the margin, 
midnerve stout, lateral nerves slender. Inflorescence of about 12 
very much spreading sessile secund spiciform racemes ; common axis 
about 4 in. long. Racemes irregularly 4-ranked, simple, the lower 
2J in. long and solitary, 1-14 in. distant, the upper more approximate 
to subverticillate, over 1 in. long, shortty bearded at the base, rhachis 
half the width of the spikelets, loosely and finely pubescent, with some 
long hairs in the lower part, margins scabrid- ciliolate ; pedicels 
paired, minutely puberulous, not thickened at the tips, one of each 
pair J lin., the other 4 lin. long. Spikelets subimbricate, ovate- 
lanceolate, acuminate, turgid, green, variegated with dull purple, 
quite glabrous. Lower glume three-quarters to four-fifths the length 
of the spikelet, cuneate-lanceolate and narrower than it, acute, 
3-nerved ; upper ovate-lanceolate, acuminate, convex, as long as the 
lower floret, 3-nerved. Lower floret : valve similar to the upper 
glume but flat ; anthers f lin. long. Upper floret elliptic- 
rotundate, shortly mucronate, half the length of the spikelet ; valve 
