361 
8. Echinocactus viridescens Nutt; Torr. & Gray, FI. i, 554 (1840). 
Globose or depressed, simple or branching at base, 10 to 30 cm, high, ° 
15 to 25 em. in diameter: ribs 13 to 21 (fewer when young), compressed 
and scarcely tuberculate: spines more or less curved and sometimes 
twisted, reddish below, shading into greenish or yellowish above; 
radials 9 to 20, 1 to 2 em. long, the lowest shortest, and robust and 
decurved; centrals 4, cruciate, much stouter, compressed and 4-angled, 
2 to 3.5em. long, the lowest broadest, longest, and straightest: flowers 
yellowish-green, about 4 cm. loug: fruit ovate or subglobose, greenish, 1 
to20mm. long: seeds obliquely obovate, 1.6mm, long, very minutely but 
distinctly pitted. (J//, Cact. Mex. Bound. t. 29)—Type unknown. 
Dry hills and ridges near San Diego, California; also collected on the 
sea beach by Schott. 
Specimens examined: CALIFORNIA (Schott, without date or number; 
Parry of 1850; Newberry of 1858; Cooper of 1862; Agassiz of 1872 
Pringle of 1882: also plants cultivated in St. Louis and Washington). 
The fruit is said to have the shape and taste of a gooseberry. 
9. Echinocactus cylindraceus Engel. Syn. Cact, 275 (1856). 
Echinocactus viridescens cylindraceus Engelm. Amer. Journ, Sci. ser. 2, xiv, 328 
(1852). 
Globose to ovate or ovate-cylindrical, simple or branching at base, 
becoming as much as 9 dm. high and 3 dm. in diameter: ribs 13 in 
younger specimens, 20 to 27 in older ones, obtuse and tuberculate: spines 
stout, compressed, more or less curved, reddish; radials about 12, with 
3 to 5 additional slender ones at upper edge of areola, 2.5 to 5 em. long, 
the lowest stouter and shorter and much hooked; centrals 4, very stout 
and 4-angled, about 5m, long and 2 to3 mm, broad, the uppermost 
broadest and almost straight and erect, the lowest decurved: flowers 
yellow: fruit subglobose, pale-greenish, about 2.5 em. in diameter: 
seeds black, larger than in the last. (J//. Cact. Mex. Bound. t. 60)— 
Type, Parry of 1850 in Herb. Mo. Bot. Gard. 
From San Felipe, California (eastern slope of the mountains), into 
Lower California, and eastward to southern Utah, New Mexico, and 
southwestern Texas. 
Specimens examined: CALIFORNIA (Parry of 1850; Palmer of 1870): 
LOWER CALIFORNIA (Oreutt of 1883): UTAH (Palmer of 1870): NEW 
Mexico (Parry, without number or date): TEXAS (no collector named). 
10. Echinocactus peninsulz Engelm. MSS. 
Globose to cylindrical, sinple, 1.5 to 15.dm. high, 1.5 to 3.5 dm, in 
diameter, sometimes becoming as much as 25 dm. high: ribs about 21, 
straight or rarely oblique: spines red; radials about 11, robust, 2 to 3 
em. long, the upper longer; centrals 4, stouter, compressed and angled, 
4 to 6 em. long, the lowest longer (even 8 cm.), more robust, hooked 
‘downward: flowers from golden-yellow to red: fruit obovate.—Type, 
Gabb 11 in Herb. Mo. Bot. Gard. 
Lower California, from Cape San Lucas to near San Diego. 
