Cypeiaceae. 45 



49. Mariscus dissitiflorus C. B. Clarke, foliis bracteis spicis spi- 

 culis quam in M. tetragono gracilioribus; spiculis longe distantibiis, 

 linearibus (vix 1 mm. latis) obscure (aut vix) tetragonis; nuce longiore 

 angustiore; ceteroquin ut M. tetragoniis. 



Cyperus dissitiflorus Nees in Limiaea IX (1834) p. 285 (nomen); 

 Boeck.f in Linnaea XXXVI (1869 — 70) p. 364. 



Hab. in Tobago in fruticetis ad King's Bay: Seitz n. 34. 

 Distrib. in America septeutr. austro - Orient, et in Venezuela. 

 Obs. Marisci tetragoni pro var. strictiore forsan habeuda. 



Yar. ß. lucidior C. B. Clarke, spiculis lucidioribus, lutescentibus 

 aut rubro-bruneis, saepius 3 — 2-nucigeris; bracteis basi 3 — 4 mm. latis. 



Cyperus thyrsiflorus Liehm.! Mexic. Halvgr. (1850) p. 26; Boeck. 

 in Linnaea XXXVI (1869 — 70) p. 311 pro magna parte. 



Cyperus pseudosphacelatiis Boeck.! Cyp. Novae. Heft 2 (1890) p. 7. 



Hab. in Trinidad: Fendler n. 892, Hart n. 2091. 



Distrib. in Texas, Mexico, Guatemala. 



Obs. Planta critica, a cl. N. L. Bkitton sub G. dissitifloro ordinata, 

 a Cyp. tliyrsifloro differt spiculis inter se longius distautibus. 



50. Mariscus/ Jacquiiiii H. B. K.j glaber, rhizomate brevi, hori- 

 zontal!; culmis 3 — 8 dm. lougis, mediocribus aut robustioribus; foliis 

 cum 2/3 parte culmi aequilongis, usque ad 7 — 8 mm. latis; umbellae 

 simplicis radiis 4 — 20 usque ad 6 — 20 cm. longis; bracteis 4 — 12, 

 usque ad 15 — -25 cm. longis, basi usque ad 7 — 8 mm. latis, cum foliis 

 consimilibus; spicis in apice uniuscujusque radii saepe solitariis rarius 

 2 — 4 digitatis, 4 cm. longis 15 mm. latis, densiusculis, e viridi lutes- 

 centibus; spiculis rectangulatim patulis vel paullo deflexis, 5 — 9 mm. 

 longis 1 mm. latis, 2 — 4-nucigeris; glumis nucigeris ovatis, obtusis, 

 carina viridi subexcurrente, ima vacua lanceolata mucronata aut cau- 

 data; stylo quam nux multo breviore, 3-fido; nuce cum 'Ys parte glu- 

 mae aequilonga, anguste ellipsoidea, trigona. 



Mariscus Jacquinii H. B. K. Nov. Gen. et 8p. I (1815) p. 216 

 in nota; Kunth Enuni. II p. 124. 



Carex hermaphrodita Jacq. Collect. IV (1790) p. 174 et Ic. PL 

 Bar. III t. 615. 



Cyperus thyrsiflorus Juiigh.f in Linnaea VI (1831) p. 24; Kunth 

 Enum. II p. 86; Boeck. in Lin7iaea XXXVI (1869—70) p. 365 

 pro parte. 



Cyperus incompletus Boeck.! in Linnaea XXXVI (1869 — 70) 

 p. 361 (syn. excl) pro majore parte. 



Cyperus Picardae Boeck. ! in Kneuck. Ällg. Bot. Zeitschr. II (1896) 

 p. 18. 



