-I 
-t 
1892. ] NEW YORK ACADEMY OF SCIENCES. 
9. Scirpus carinatus (H. & A.). 
Isolepis carinatus, H. & A., in Torr. Ann. Lye., iii, 349 (1836). 
Scirpus carinatus, A. Gray, Proc. Am. Acad., vii, 392 (1868). 
Isolepis koilolepis, Steud., Cyp., 318 (1855). 
In low grounds, Alabama, Mississippi, Louisiana, Texas, Arkan- 
sas, and the Indian Territory to California. 
ikes several or numerous, capitate or umbelled, subtende 
** Spikes lo s tat belled, subtended by 
1 or several involucral leaves. 
10. Scirpus Cubensis, Poepp. & Kunth. 
Scirpus Cubensis, Poepp. & Kunth, in Kunth, Enum., ii, 172 (1837). 
Scirpus ablepharus, Griseb., Cat. Pl. Cub., 240 (1866). 
Oxycaryum Schomburghkianum, Nees in Mart. Fl. Bras., ii, Pars. I, 90 (1842). 
Anosporum Cubense, Boeck., Linnea, xxxvi, 413 (1870). 
In swamps, Louisiana (Carpenter); New Orleans (Hale); near 
Mobile, Alabama (Mohr.). Also in the West Indies and eastern 
South America, and in Africa. 
s 
11. Scirpus Mexicanus, Clarke, ined. 
Scirpus cyperoides, Hemsley, Bot. Biol. Centr. Amer., iii, 461 (1885), not Spreng. 
Syst., i, 208 (1825). 
Cyperus ——, S. Wats., Proc. Amer. Acad., xviii, 169. 
Mexico: San Luis Potosi (Schaffner. 566; Parry and Palmer, 
905); Flor de Maria, Mexico (Pringle, 3173). 
12. Scirpus Potosinus, Clarke, ined. 
Moist banks of ravines, San Jose Pass, San Luis Potosi, Mex. 
(Pringle, 3175, Coll. 1890, distributed as ‘‘ Cyperus, near C. elegans, 
Vahi.’’) 
13. Scirpus Hallii, A. Gray. 
Scirpus Hallii, A. Gray, Addenda, Man. Ed. 2 (1863). 
S. supinus, var. Hallii, A. Gray, Man. Ed. 5, 563 (1867). 
Massachusetts: Winchester (W. Boott; Hitchings; Morong). 
Illinois: Menard Co. (B. Hall). Florida: Indian River (Curtiss, 
3118*). Missouri: St. Louis (Engelmann). Texas: (Wright; 
Lindheimer. Colorado:.(Greene). Mexico: Vera Cruz (Miiller, 
2153); San Luis Potosi (Schaffner, 571; 201). 
14. Scirpus debilis, Pursh. 
Scirpus debilis, Pursh, Fl. Am. Sept., i, 55 (1814) 
Maine: Harrison (Blake). New Hampshire: Plymouth (Mo- 
rong); west to Minnesota, Lake Minnetonka (Seymour); south to 
Georgia, Alabama, and Nebraska. 
Small forms of this species run close to the next, but the presence 
of bristles in S. debilis, equalling or longer than the nut, is here 
taken as distinctive. 
