Pycreus. | CLVI. CYPERACEE (CLARKE). 305 
32. P. angulatus, ees in Linnea, ix. 283. Rhizome slender. 
Stem 1-3 ft. long. Leaves } the length of the stem, {-} in. broad. 
Umbel simple or rarely reduced to 1 head; rays 3-8; bracts 4—5, 
lowest up to 6-10 in. long, similar to the leaves. Spikes of 3-20 
spikelets, loose. Spikelets up to 2 by 4 in., 22-flowered, compressed, 
yellow-brown. Glumes ovate, keeled, a little inflated; tip triangular ; 
margins crisped-undulate. Nut }-} the length of the glume, obovoid, 
black.—C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 593, in Durand & 
Schinz, Conspect. Fl. Afr. v. 534, and in Dyer, Fl. Cap. vii. 156, 
160; Urban, Symb. Antill. ii. 19. Cyperus angulatus, Nees in Wight, 
Contrib. 73; Boeck. in Linnea, xxxv. 465. 
Mozamb. Dist. British Central Africa: Rhodesia; Leshumo Valley, south 
of the Zambesi, Holub! Nyasaland; Namasi, Cameron, 22! 
Also in South Africa, India, Australia, and Tropical America. 
This species occurs in Natal and the Transvaal, and is very likely to oceur in 
Tropical Africa, whether Holub’s example is rightly named or no; and hus therefore 
been included in this Flora. Holub’s specimens are 5-7 in. high only, with a single 
loose head of 4 large spikelets on each. The woody stem and spikelets do very well 
for au extremely depauperated P. angulatus; but the flowers are quite young and 
the identification altogether uncertain, 
33. P. albomarginatus, ees in Mort. Fl. Bras. ii. i. 9. A large 
annual. Stem solitary, 1-3 ft. high, triquetrous at the top, smooth. 
Leaves 2 the length of the stem, }-} in. broad. Umbel usually com- 
pound ; primary rays 3-11 up to 1-7 in. long; bracts 3-6, lowest up to 
8-18 in. long, similar to the leaves. Spikes subglobose, 14 in. long, of 
12 spikelets, or very loose, elongate, 2 in. long, of 8-10 spikelets. 
Spikelets up to 1} by } in., flattened, straw-coloured or yellow, 18-30- 
flowered. Glumes ovate, obtuse, distant, with white margins. Nut 4 
the length of the glume, up to 1, in. long, compressed, ellipsoid, black. 
—C. B. Clarke in Hook. f. Fl. Brit. Ind. vi. 594, and in Durand & 
Schinz, Conspect. Fl. Afr. v. 534 ; Durand & Schinz, Etudes Fl. Congo, 1. 
280; Rendle in Cat. Afr. Pl. Welw. ii. 107. Cyperus Hochstetteri, 
Krauss in Flora, 1845, 755 in note; Boeck. in Linnea, xxxv. 471, and 
in Flora, 1879, 546; C. B. Clarke in Journ. Linn. Soc. xx. 282, and 
Xxi. 69, incl. vars. 8, y; Ridley in Trans. Linn. Soe. ser. 2, Bot. i. 126. 
C. retusus, Steud. in Flora, 1842, 582, and Syn. Pl. Glum. i: 11 partly ; 
A. Rich. Tent. Fl. Abyss. ii. 485, not of Nees. C. albomarginatus, 
Steud, Syn. Pl. Glum. ii. 10. C. argyreus, Steud. Syn. Pl. Glum. ii. 
io Wee as patuliflorus, Boeck. in Linnea, xxxv. 475, and in Flora, 1879, 
mae. C. esculentus, Ridley in Trans. Linn. Soc. ser. 2, Bot. 1. 138 
partly. 
Upper Guinea. Senegal, Perottet, 876! Roger, 20! 39! 
Heudelot, 537! Galam, Heudelot, 316! Bakel, Heudelot, 317! 
Nile Land, Kordofan : near Abu Gerard, Kotschy, 52! Galabat ; region of 
Matamma, Schweinfurth, 2012! Abyssinia: near Gafta, Schimper, 1199! Efak, near 
Lake Tana, Schimper, 1551! British East Africa: Jur; Jur Ghattas, Schweinfurth, 
1939! 2018! 2082! 
Lower Guinea. Lower Congo: Boma, Hens, 392! Angola : Loanda; near 
Teba and Quicuxe, Welwitsch, 7046! and fruit, 1072! Pungo Andongo: Lagoa de 
VOL. VIII. x 
Senegambia, 
