Tuncellus. | CLYVI, CYPERACEH (CLARKE). 307 
1. J. alopecuroides, ('. B. Clarke in Hook. f. Fl. Brit. Ind. 
vi. 595, Large; flowering the first season. Stem solitary, 13-3 ft. long, 
at the top trigonous and smooth. Leaves as long as the ‘stem, }—} in. 
broad. Umbel 6-24 in. in diam., compound; rays 4-10; bracts 3-8, 
lowest 6-15 by }-} in. Spikes 3-5 together, sessile, 1-14 by 4-4 in., 
dense, cylindric. Spikelets 4-3 by ;4,-} in., compressed, 8—30-flowered, 
straw-coloured. Glumes very closely imbricated, ovate, concave, thin ; 
rhachilla stout, subquadrangular, not winged. Nut 4 the length of 
the glume, obovoid, with the anterior angle flattened.—C. B, Clarke in 
Durand & Schinz, Conspect. Fl. Afr. v. 543, and in Bull. Herb. Boiss. 
iv. Append. iii. 28; Urban, Symb. Antill. ii. 20. Cyperus alopecu- 
roides, Rottb. Descr. et Ic. 38, t. 8, fig. 2; C. B. Clarke in Journ. Linn. 
Soc. xx. 283, and xxi. 30, 74, t. 2, fig. 12; Aschers. & Schweinf. Il. Fl. 
Egypte, 156; Schweinf. in Bull. Herb. Boiss. ii. Append. ii. 49, 103. 
C. semidives, Steud. Syn. Pl. Glum. ii. 36. 
Upper Guinea. Senegambia: Cape Verd, Brunner, 46! 64! Cape Verd 
Islands : St. Jago, Hooker, 100! Bornu, Vogel ! 
Nile Land. Kordofan, Kotschy! Abyssinia; Modat, Schimper, 110! 1478! 
and without precise locality, Hildebrandt, 361! 
Lower Guinea. Angola: Benguela, Menyharth, 203! Mossamedes, Hoepfner, 1! 
Mozamb. Dist. British Central Africa; Nyasaland, Buchanan, 417! 
Also in North Africa, the Mascarene Islands, India, Malaya, Queensland and 
Guadeloupe. 
Boeckeler has included this species under Cyperus (Eucyperus) exaltatus, 
Retz. It is therefore not possible to dissect the synonymy and geography satisfac- 
torily in many cuses. Schweinfurth’s Cyperus alopecuroides is founded on his three 
numbers 920, 1487, 1716; of these 920, which I have seen, is Cyperus eraltatus, 
Retz; but it is very likely that the other two (or one of them) was Pycreus 
alopecuroides. 
2. J. pustulatus, ©. B. Clarke in Durand d: Schinz, Conspect, Fi. 
Afr. v.546. Annual. Stems tufted, 4-16 in. long, rather slender. 
Leaves few, 3—} the length of the stem, ;1,-} in. broad, weak. Umbel 
Simple (sometimes 1 spike only present); rays 2-5, 0-24 in. long ; 
bracts 3, lowest 3-7 in. long, similar to the leaves. Spikes of 2-5 
nearly sessile spikelets, ebracteolate. Spikelets up to $ by nearly + in., 
turgid, moderately compressed, linear-oblong with parallel sides, 8-18- 
owered, glistening-white purple-marked; rhachilla persistent, not 
Winged. Glumes ovate, obtuse, 7-nerved, closely imbricated, rounded 
or scarcely keeled on the back, caducous regularly beginning with the 
lowest nut-bearing one. Style 2-fid or more rarely 3-fid. Nut 2? the 
length of the glume, obovoid, flattened on the anterior angle, usually 
So much flattened that the nut is biconvex and the anterior style- 
branch gone, sometimes unequal trigonous with 3 style-branches.— 
Rendle in Cat. Afr. Pl. Welw. ii. 109. Cyperus pustulatus, Vabl, 
num. ii. 341; Schumach. Beskr. Guin. Pl. 37; Kunth, Enum. ii. 63 ; 
oeck. in Linnea, xxxv. 491, and in Flora, 1879, 548 ; Ridley in Trans. 
Linn. Soe. ser, 2, Bot, ii. 128 partly. C. Barteri, Boeck. in Linnea, 
*xxv. 460; C. B. Clarke in Journ. Linn. Soc. xxi. 76. 
