3802 CLVI. CYPERACEH (CLARKE). ' [Pycreus. 
_.. The inflorescence, spikelets and nuts appear to me so identical with those ot 
_ BP. smithianus, from the same locality, that I cannot bnt suspect they are one species. 
' The diversity in the base of the stem is so striking that more material must 
‘ be awaited before uniting the two. 
‘ 
25. P. minimus, (. B. Clarke. Roots fibrous. Stems 14 in. 
long, weak. Leaves 1 by j4,—31, in., weak. -Umbel 4 in. in diam., 
"of 6-9 spikelets; rays 2-3, 0-1 in. long; bracts 2-3, lowest } in. 
long and similar to the leaves. ‘Spikes of 2-4 spikelets. Spikelets 
'} by 3's in., chestnut, 6-12-flowered. Glumes ovate, not acute, rather 
distant, keel green. Style slender; branches 2, long, linear. Nut ? 
the Iength of the glume, ellipsoid, compressed laterally, brown ; super- 
ficial cells minute square.—Cyperus minimus, K. Schumann MS., non 
“Thunb. 
Wile Land. British East Africa : Rabai Hills, near Mombasa, Taylor ! 
Mozamb. Dist. Zanzibar, Stuhlmann, i. 65! 
26. P. melas, C. B. Clarke in Durand & Schinz, Conspect. Fl. Afr. 
‘v. 538. Annual. Stems 2-6 in. long, tufted, almost setaceous. Leaves 
‘3- the length of the stem, almost setaceous. Umbel of 5-10 spikelets, 
‘nearly contracted into a head; rays 1—4, 0-2 in. long; bracts 2-3, 
lowest 2 in. long, similar to the leaves. Spikelets 2-4 together, almost 
‘digitate, 2 by +45 in., 8-30-flowered, black-chestnut, with parallel sides. 
Giumes ovate, obtuse, chestnut, narrowly scarious-yellow on the 
‘margins. Style small, the two linear branches hardly exserted. Nut 
% the length of the glume, ellipsoid, apiculate, ashy black; superficial 
cells small, square.—Rendle in Cat. Afr. Pl. Welw. ii. 108. 
: Lower Guinea. Angola: Pungo Andongo ; 3500 ft.; marshy places near 
‘Lombe, Welwitsch, 6913! Mutollo, Serra de Guinga, Welwitsch, 6914! 7154! 
Huilla ; lofty pastures of Morro de Lopollo, 5000 ft., Welwitsch, 6871! 
27. P. elegantulus, C. B. Clarke in Durand &: Schinz, Conspect. 
_ £1. Afr. v. 536. Annual. Stems 8-28 in. long. Leaves 3 the length 
of the stem, ;',-3 in. broad. Umbel of 1-7 dense compound spikes, 
often 1-headed, but rays sometimes 2-3 in. ; bracts 3-5, lowest 3-9 in. 
_long, similar to the leaves. Spikes dense, of 5-30 spikelets, (several 
often congested, forming a mass of 80 spikelets or more), ebracteolate. 
Spikelets 4-3 by 3. in, 6—16-flowered, much compressed, hard. 
Glumes ovate, keeled, subobtuse, uniformly black-chestnut, not nerved 
-on the sides, the keel broad green. Style short, the two branches 
hardly exserted. Nut 4-3 the length of the glume, obovoid, apiculate, 
. Smooth, the superficial cells minute square.—Cyperus melanocephalus, 
_R. Br. in Salt, Abyss. Append. iv. 63 name only. C. elegantulus, 
Steud. in Flora, 1842, 588, and Syn. Pl. Glum. ii. 11; Hook. f. in 
Journ. Linn, Soe. vii, 224 2; K. Schum. in Engl. Pfl. Ost-Afr. C. 117. 
C. atronitens, Hochst. in Flora, 1841, i. Intell. 20; A. Rich. Tent. Fi. 
Abyss. ii. 476; Boeck. in Linnea, xxxv. 456; Schweinf. Beitr. Fl. 
Aethiop. 215, and in Bull.’ Herb. Boiss. ii, Append. ii. 46, 102; C. B. 
