215 
Arkansas (Harvey); Indian Territory (G. D. Butler); Louisiana 
(Langlois). 
Var. sphericus, Boeckl. Heads smaller than in the type, 
very dense; spikelets more subulate, reddish brown. Arkansas 
(Dr. Pitcher); Indian Territory (Dr. Palmer, No. 348); Texas 
(Wright) and Herb. Berland. Tex. Mex., Nos. 314, 1568 and 
1574.) 
59. C. ToRREYI. (Mariscus cylindricus, Ell.; C. ovularis, 
var. cylindricus, Torrey; C. cylindricus, Britton, |. c.. vii., p. 48, 
Plate III., not of Chapman.) Long Island (Leggett) to Florida 
(Curtiss, N. A. Plants, No. 3051), and westward to Texas 
(Palmer, Flor, S. W. Texas, No. 2017.) 
60. C. retrorsus, Chapm. in Bot. Gazette, iii, p. 17; C. ret- 
roversus, Chapm., Suppl. p. 659; J alternifolius, Vahl.) 
Robert’s Key, Caximbas Bay, southern Florida (Chapman) ; 
also in Mauritius. 
61. C. retrofractus, Gray. Southern New Jersey to Flor- 
ida (Curtiss, No. 3053), and Texas (E. Hall, Plante Texane, 
No. 691.) 
62. C. flavomariscus, Griseb., Flor. Brit. W. I., p. 567. 
(Mariscus flavus, Vahl; C. flavus, Boeckl.) Valley of the 
lower Rio Grande (Buckiey); Monterey, Cal. (?), vide Watson, 
Bot. Cal., ii, p. 216; in ballast.at Philadelphia and Camden 
(Parker, Burk); also in Mexico, the West Indies and South. 
America. 
Var. PEDUNCULARIS, n. var. Rays of the umbel elongated, 
with setaceous involucels. Chihuahua (Dr. E. Palmer, No. 49, 
1885; Mandon, Plante Andium Bolivensium, No. 1398.) 
63. C. cylindricus, Chapm., not of Britton. Colier’s Key, 
Marco Pass, South Florida (Chapman.) 
64. C. uniflorus, Torr. and Hook. Texas (Drummond, 
Wright, E. Hall, No. 686, Reverchon, Nealley.) 
‘Var. pumilus, Britton. Indian Territory (Dr. Palmer, No. 
350); valley of the lower Rio Grande (Buckley.) 
65. C. WRIGHTII, n. sp. Culm slender, triangular, 12 to 15 
inches high; leaves of the culm few, narrowly linear; root leaves 
not seen; involucre of one elongated leaf, and 2 to 4 shorter 
ones; umbel simple, of 1 to 3 short rays; inflorescence of Ito 
