FEROCACTUS. 
133 
354. f. 335; Gard. Chron. III. 35: 181. f. 76; Engler and Prantl, Pflanzenfam. 3 6 “:f. 56, D; 
Strand Mag. 626, 627; Goebel, Pflanz. Schild. 1: f. 47; Forster, Handb. Cact. ed. 2. 208. 
f. 16; Ann. Rep. Smiths. Inst. 1903: 500. f. 1; pi. 1, 2; Cact. Mex. Bound, pi. 28; Pac. R. 
Rep. 4: pi. 3, f. 3; Watson, Cact. Cult. 101. f. 34; ed. 3. 52. f. 22, as Echinocactus emoryi; 
Bull. Geol. Surv. 613: pi. 38 A, without name. 
Figure 138 is from a photograph of the plant, taken by F. F. Floyd in the Ouijotoa 
Mountains, Arizona, in 1906; figure 139 is from a photograph taken by Dr. MacDougal 
near Torres, Sonora, in 1903. 
13 . Ferocactus peninsulae (Weber). 
Echinocactus peninsulae Weber, Bull. Mus. Hist. Nat. Paris i: 320. 1895. 
Simple, erect, 2.5 meters high, clavate to cylindric; ribs 12 to 20, prominent; areoles 4 cm. apart 
or even less in old plants; spines red with yellow tips; radial spines 11, spreading, straight, terete, 
more or less annulate, the lower ones stouter and more colored; central spines 4. 
Type locality: Tower California, but no definite locality cited. 
Distribution: Southern Tower California. 
Fngelmann and Weber seemed to have been in agreement regarding this species being 
new, but Fngelmann’s name (Contr. U. S. Nat. Herb. 3: 361. 1896) was based on Gabb’s 
specimen (No. 11), now preserved in the Missouri Botanical Garden, while Weber’s name 
is based on Diguet’s plant. The plants of these two collections may or may not be con- 
specific. We have seen only Engelmann’s specimen which we have used in making our 
illustration. 
In December 1920, Dr. William S. W. Kew sent us fruit and a small living plant from 
near Boca de Guadalupe on the west coast of Tower California which we believe belongs 
here. His plant is less than 10 cm. high with 8 broad ribs; young areoles brown-felted, 
circular; radial spines spreading, brownish or white; central spines 4, grayish brown, the 
lower one flattened, strongly hooked, annulate; flowers yellow; fruit yellowish, 2.5 cm. 
long, bearing broad rounded scales; seeds 2 mm. long, reticulate. The plant is known as 
