940 BULLETIN DE L'HERBIER BOISSIER (2m SER.). (227) 
Cyperus megapotamicus, Beeck.! in Linnæa v. 35 [1867-8], p. 453 partim ; 
P. Maury! in Mem. Soc. Phys., Genèv., v. 31 [1890], p. 125. 
C. nematodes, Chamisso! ms in herb. Berol. 
Paraguay ; Balansa n. 672. 
Hab. Brasil Australis, Uruguay, Chile. 
Pycreus tener C. B. Clarke ms. 
Culmo brevi monocephalo; spiculis linearibus. teneris, usque ad 30-floris 
multum compressis, stramineis; glumis complanatis, proventu stricte imbricatis 
neque subinflatis in lateribus late teneris albidis, 
Species nova, P. propinquo, Nees, affinis. 
Paraguay; Assomption, Balansa n. 402 in herb. Kew. 
Hab. Endemica. 
Pycreus angulatus Nees. 
in Linnæa, v. 9 [1834], p. 283; C. B. Clarke in Urban Symb. Antill., 
v. 2, p. 45, 19; Lindm. Regnell. Cyp. [4900], p. 6. 
P. albomarginatus var. bromordes, Chodat in Pl. Hassl. I, p. 19; Bull. 
Herb. Boiss., v. 6, Append. 1 [1898], p. 19. 
Cyperus bromoides, Link Jahrb., v. 3 [1820], p. 85; Morong et Britton! 
in Annal. New York Acad., v. 7 [1893], p. 251. 
C. angulatus, Nees! in Wight Contrib., p. 73. 
C. unioloides var. bromoides, P. Maury in Mem. Soc. Phys. Genev., 
v. 31 [1890], p. 125. 
Paraguay; Balansa n. 405. 
Hassler n. 1829. 
Hab. Africa, Asia, Australia, in tropicis et semi-tropicis. 
Cyperus Haspan Linn. 
Sp. Pl., p. 66 partim, nec Linn. Herb. 
Var. 8 Americana, Bœck. 
in Linnæa, v. 35 |1867-8], p..575; Lindm.! Regnell. Cyp. [1900], p. 7. 
C. Haspan, Morong et Britton in Annal New York Acad., v. 7 [1893], 
p. 252; P. Maury in Mem. Soc. Phys. Genève, v. 31 [1890], p. 128; C. B. 
Clarke in Urban Symb. Antill., v. 2, p. 22, 25. 
Paraguay; Balansa n. 406, 409, 4516. 
Hassler n. 8257, 8257 a. 
Hab. (Var. £). In America omni calidiore vulgaris. 
Herba 0,4-0,3, in palude in regione fluminis Apa, Dec., n. 8257; 
forma major. 
Herba 0,5-0,8, in palude in regione fluminis Apa, Jan., n. 8257 a. 
Cyperus uncinulatus Nees. 
in Mart. Brasil., v. 2, pars 4 [1842], p. 23; P. Maury in Mem. Soc. 
Phys. Genève, v. 31 [1890], p. 126; Lindm.! Regnell Cyp. [1900], p. 7; 
Schrader! ms. 
C. hamatus, Nees! in Mart. Brasil, v. 2, pars 1 [1842], p. 23. 
