ae ne ri 
Cyperaceae. 19 
Oyperus Olfersianus Kunth! Enum. II (1837) p. 10; Boeck. in 
Linnaea XXXV (1867—68) p. 439; Sauv. Oub. n. 2564 p. 171; — 
non Pycreus Olfersianus Nees. 
Hab. in Hispaniola: Herb. Hennecart (Jacquemont?). 
Distrib. in Africa, Mexico; frequens in America australi. 
_>11. Pyereus helvus C. B. Clarke, umbellae radiis 3—5 usque ad 
2—5 em. longis; spicis 6—20-stachyis; spiculis 21/, mm. latis, lanceo- 
latis 4—8-floris, aut linearibus usque ad 20-floris, multum compressis; 
glumis rigide imbricatis neque inflatis; ceteroquin ut P. propinquus Nees. 
Cyperus densus Link Jahrb. III (1820) p. 83; Humboldt ms. 
fide Link. 
Oyperus helvus Liebm.! Mexie. Halvgr. (1850) p. 9. 
Cyperus ambiguus Liebm.! Mexie. Halvgr. (1850) p. 11; non 
Steud. 
Oyperus correctus Steud.! Cyp. (1855) p. 7. 
Oyperus variegatus Griseb. Flor. (1864) 562; Sauv.! Cub. n. 2567 
».171; non H.B.K. 
Oyperus Jacquemontü Boeck.! in Linnaea XXXV (1867 —68) 
p. 442. 
Oyperus Olfersianus y. elatior Boeck.! in Linn. XXX V (1867 — 68) 
p. 440. 
Oyperus Humboldtianus Schultes in Roem. et Sch. Syst. IT Mant. 
(1824) p. 100; Kunth Enum. II p. 11; Boeck. in Linnaea XXXV 
(1867—68) p. 441. 
Oyperus Olfersianus Boeck. in Engl. Jahrb. I (1881) p. 362; 
©. B. Clarke in Journ. Linn. Soc. XXI (1884) p. 62 partim; non 
Kunth. 
Cyperus Jaeggei Boeck. Oyp. Novae. Heft 1 (1888) p. 2. 
Cyperus melanostachyus Kunth Enum. II (1837) p. 10 partim; 
var. pallida Schlecht. ms. fide Boeck. 
Hab. in Cuba: C. Wright n. 706, Sagra, Combs n. 428; Jamaica: 
Purdie; Hispaniola: Jacquemont. 
Distrib. in Mexico et Guatemala frequens; in Brasilia australi et Monte- 
video rara, 
12. Pyereus angulatus Nees, rhizomate elongato, tenui; culmo 
6—10 dm. longo; foliis cum ?/, parte culmi aequilongis, usque ad 
4—5 mm. latis; umbellae simplieis radiis 3—8, usque ad 5—10 cm. 
longis; bracteis 4— 5, usque ad 2—3 dm. longis; spieis 3—20-stachyis, 
basi interdum subcompositis; spiculis spicatis, usque ad 16 mm. longis, 
5 mm. latis, 22-floris, compressis, luteo-stramineis aut fuscescentibus; 
glumis ovatis, inflatis, in dorso viridi 3-nerviis, in lateribus lucidis, 
