480 
CL VII. GrKAMINEiE (Stapf). 
[Digitaria. 
the margins, hairs white, not clavate, the upper much exceeding 
the glume. Lower floret corresponding in size and outline to the 
spikelet, subobtuse, prominently 5-7-nerved, with lines of hairs 
between the inner side-nerves and along the margin. Upper floret 
as long as the spikelet, lanceolate, acute, with a convex almost 
keeled back, at length turning brown. — Panicum piriferum, Chiov. 
in Ann. Istit. Bot. Roma, viii. 295. 
Nile Land. Eritrea : Amasen ; Dongolla near Ghinda, Pappi, 4230 ! 
According to Chiovenda allied to D. argyrograpta, Stapf ; but the description 
of the basal parts of the grass and the inflorescence rather recalls D ■ pennala. 
Whilst this and the preceding sheet were passing through the press Dr. Ohio- 
venda’s papers “.Gramina nova ex Catanga” (in Ann. di Bot. xiii. pp. 35-58) 
and Resultati Scientifici della Missione Stefanini-Paoli, vol. i. Le Collezioni 
Bota, niche (Pubbl. Istit. Stud. Slip. Firenze ), came to hand. They contain the 
following new species and varieties : — I), siderigmpta, D. Bovonii , D. Parlatorei, 
vars. phceotricha and microstachya, D. sulcigluma from Katanga, and D. somal- 
ensis and D. gallaenssis from Somaliland and the Arussi country respectively. 
These species as well as those belonging to genera dealt with in the earlier 
parts of this volume will be taken up in the addenda. 
58. CHL0RIDI0N, Stapf in Hook. Ic. Pl.t. 2649. 
Spikelets lanceolate, acute, flat in front, convex on the back, 
falling entire from the pedicels, 2-nate, secund and abaxial on the 
triquetrous winged rhachis of slender spiciform racemes ; lower 
floret barren, reduced to the valve and a very minute valvule, accom- 
panied by equally minute iodicules ; upper floret shorter than the 
lower, Lower glume quite suppressed, upper reduced to a small 
hyaline scale. Barren floret : valve determining the outline and 
size of the spikelet, long-awned from the tip, finely 2-k.eeled upwards, 
closely and prominently 7-nerved, thin between, the nerves. Fertile 
floret : valve awnless, thinly chartaceous with hyaline margins, 
faintly 8-nerved ; valvule equal to the valve, embraced by it all 
along, faintly 2-nerved, of the same texture. Lodicules 2, minute, 
broadly cuneate. Stamens 3. Ovary oblong-ovoid ; styles connate 
towards the base, long ; stigmas short, exserted near tip of spikelet. 
Grain linear-oblong, dorsaliy compressed ; hilum subbasal ; 
scutellum half the length of the grain. — Perennial ; leaf-blades 
linear, flat, ligules membranous ; racemes sessile or subsessile, 
digitate, suberect. Spikelets very numerous, imbricate, coloured. 
Species 1, endemic in tropical South Africa. 
1. C. Cameronii, Stapf in Hook. Ic. PI. t. 2640. Perennial, cses- 
pitose on a very short rhizome with mostly extra vaginal innovations. 
Culms 1 to over 3 ft. high, slender to somewhat stout, terete, erect 
or geniculate, 5-7-noded, lower and intermediate internodes usually 
shorter than the adjacent sheaths, the uppermost long-exserted. 
Leaf-sheaths terete and tight, or the lower more or less compressed 
and loose, hirsute or the upper, rarely all, subglabrous or glabrous, 
very finely striate ; ligules ciliolate ; blades linear from an equally 
