Cyperaceae. 19 



Cypet'iis Olfersiamis Kiinth! Emmi. II (1837) p. 10; BoecJc. in 

 Linnaea XXXV (1867 — 68) p. 439; Sauv. Cub. n. 2564 p. 171; — 

 non Fycreiis Olfersianus Nees. 



Hab. in Hispaniola: Herb. Hennecart (Jacquemont?). 



Distrib. in Africa, Mexico; frerßiens in America australi. 



11. Pycreus helvus C. B. Clarke; umbellae radiis 3 — 5 iisqiie ad 

 2 — 5 cm. longis; spicis 6 — 20-stachyis; spiculis 2^2 mni- latis, lanceo- 

 latis 4 — 8-floris, aiit linearibus iisque ad 20-floris, multum compressis; 

 gluniis rigide irabricatis neque inflatis; ceteroquin iit P. propinqims Nees. 



Cijperus densiis Link Jahrb. III (1820) p. 83; Humboldt ms. 

 fule Link. 



Cyperus helvus Liebm.! Mexic. Halvgr. (1850) p. 9. 



Cyperus ambiguus Liebin. f Mexic. Halvgr. (1850) p. 11; non 

 Steud. 



Cyperus corrcctus Steud.! Cyp. (1855) p. 7. 



Cyperus variegatus Griseb. Flor. (1864) 562; Sauv.! Cub. n. 2567 

 p. 171; non H B. K. 



Cyperus Jacquemontii Boeck.! in Linnaea XXXV (1867 — 68) 

 p. 442. 



Cyperus Olfersianus y. elaiior Boeck.! in Linn. XXX V(1867— 68) 

 p. 440. 



Cyperus Humboldtianns Schidtes in Roem. et Seh. Syst. II Mant. 

 (1824) p. 100; Kunth Enum. II p. 11; Boeck. in Linnaea XXXV 

 (1867—68) p. 441 



Cyperus Olfersianus Boeck. in Engl. Jahrb. I (1881) p. 362; 

 C. B. Clarke in Joiirn. Linn. Soc. XXI (1884) p. 62 partim; non 

 Kunth. 



Cyperus Jaeggei Boeck. Cyp. Novae. Heft 1 (1888) p. 2. 



Cyperus melanosiachyus 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.^Pycrcus aiigiilatns Nees^ rhizomate elongato, tenui; culmo 

 6 — 10 dm. longo; foliis cum Ys parte culmi aequilongis, usque ad 



4 — 5 mm. latis; umbellae simplicis radiis 3 — 8, usque ad 5 — 10 cm. 

 longis; bracteis 4 — 5, usque ad 2 — 3 dm. longis; spicis 3 — 20-stachyis, 

 basi interdum subcompositis; spiculis spicatis, usque ad 16 mm. longis, 



5 mm. latis, 22-floris, compressis, luteo- stramineis aut fuscescentibus; 

 glumis üvatis, inflatis, in dorso viridi 8-nerviis, in lateribus lucidis, 



2* 



