364 
twisted, usually not at all hooked, sometimes as much as 15 em. long: 
flower rather smaller. (JUl. Pacif. R. Rep. iv, t. 2, figs. 8-5; Cact. Mex. 
Bound. t. 27)—Type, LeConte 11 in Herb. Mo, Bot, Gard. 
Rocky ground, from southwestern Utah and southern Nevada through 
western Arizonaand adjacent California to Sonora and Lower California. 
Apparently not east of the Great Basin. 
Specimens examined: Uran (Palmer of 1877; Siler): ARIZONA 
(LeConte 11; Bigelow of 1854; Newberry of 1858; Palmer of 1867, 1869, 
1874; Parry of 1881; Pringle of 1881; Evans of 1891): CALIFORNIA 
(Parish of 1880; G. BR. Vasey of 1880): SONORA (Palmer of 1869): 
LOWER CALIFORNIA (Brandegee of 1889, at Boca de Las Animas, San 
Gregorio, and Posa de Los Dolores). 
The Western representative of EF. wislizeni, although the discovery of that form 
by Brandegee in Lower California indicates that the two are not geographically so 
distinct as was formerly supposed. In the Lower Californian specimens of lecontet 
the central spine (the prominent lower one) often becomes very broad and long and 
hooked, as in cornigerus. Among the Mexicans both /. wislizeni and E£. lecontet have 
the reputation of being ‘traveler's plants,” useful for allaying thirst, and the local 
name is variously reported as “ biznaga,” ‘ bisnada,” and ‘‘visnada.” 
16. Echinocactus wislizeni albispinus Toumey, Gard. & For. viii, 154 (1895). 
Differs from lecontei in being oblong, and in the much fewer radials 
(11 in all, 2 upper and 3 to 5 lower rigid, and 2 or 5 laterals on each side 
flexuous), all of which (or only the flexuous ones) are whitish, (Ul. 
1. ¢.)—Type in Toumey Herb. 
Southern Arizona and Lower California, 
Specimens examined: ARIZONA (J. W. Toumey of 1892, near Tucson): 
LOWER CALIFORNIA (M. Eb. Jones of 1882.) 
There can be no doubt but that this form with much fewer radial spines occurs 
throughout the range of lecontei, to which it is most closely allied, The radials are 
not merely reduced in number, but are remarkably diverse in character. In the 
Arizona specimens before me, the two upper radials are stout and annulate, colored 
like the centrals, but much smaller; then two flexuous laterals on each sideare long 
and white; next the two remaining laterals on each side are rigid and red, and some- 
times annulate; and the lowest spine is the shortest, slender, and almost tlexuous. 
The large central, as in lecontei, has a curved horny tip (not a hooked one), and is 
broadly flattened above. 
17. Echinocactus pilosus Gal.; Salm, Cact. Hort. Dyck. 148 (1850). 
Echinocactus piliferus Lem. ; Lab. Monogr. Cact. 186 (1858). 
Globose, 15 to 45 em. high: ribs 13 to 18, compressed, little if at all 
interrupted: radial spines represented by 3 slender ones at the lowest 
part of the pulvillus or wanting; centrals 6, very stout, at first pur- 
plish, then becoming pale-yellow, the 3 upper ones erect, the 3 lower 
recurved-spreading: flowers unknown, but probably like those of the 
variety.—Type unknown. 
Coahuila and San Luis Potosi. 
Specimens examined: COAHUILA (Palmer 375): SAN LUIS PoTost 
(Parry 273; Weber of 1865, 1866): also specimens cultivated in Mo. 
Bot. Gard., 1883. 
