36 THE CACTACEAE. 
smaller, deep purple; inner perianth-segments spatulate, 3 to 4 cm. long, acute, the margin some- 
times serrulate; filaments purple, very short, 1 cm. long or less; style very pale; ovary deep green, its 
areoles bearing white felt and white bristly spines; fruit ovoid, 2.5 to 3 cm. long, purplish, edible; 
seeds 1.4 mm. long. 
Type locality: Near Santa Fé, New Mexico. 
Distribution: Texas to Utah, Arizona, and northern Sonora and Chihuahua, Mexico. 
The species shows considerable variation in armament and in the size of the flowers 
and, except in its erect habit, much resembles the next following species. 
This species was named for August Fendler (1813-1883) who collected extensively in 
New Mexico and Venezuela. . 
Related to Echinocereus fendleri but growing at higher elevations is a plant obtained 
by D. T. MacDougal and Forrest Shreve from the eastern side of the Santa Catalina 
Mountains in March 1921 and again at Oracle, Arizona, May 6, 1921. This plant grows 
singly or in clumps with 13 to 16 lowribs and short spines. The central spines are from 
1 to 4. More detailed field studies may prove this to be a distinct species. Figure 45 
may represent this form. 
Fic. 43.—Echinocereus merkeri. 
reciisprnuds van? 
Echinocereus hildmannii Arendt (Monatssch . 
be compared with E. fendleri. (Monatsschr. Kakteenk. 1: 146. pl. 11. 1891) should 
Illustrations: Curtis’s Bot. Ma : 
; g. 106: pl. 6533; Cact. Mex. Bound. pl. 51 to 53; 
Cartenflora 32: paras crews fendleri; Forster, Handb. Cact. ed. 2. f. 104 Plant World 
71.1; Rimpler, Sukkulenten 137. f. 73; Schelle, Handb. K 64; Bli 
Kaktee 5: pl. t4a; Floralia gs ae andb. Kakteenk. 134. f. 64; Bliihende 
ate Iv, figure 3, shows a flowerin 
; g plant sent by W. H. Long to the New York 
patanieal Garden from Albuquerque, New Mexico,in 1915. Figure 44 is froma photograph 
Ke y pr acDougal in the Tucson Mountains, Arizona, in 1908; figure 45 is from a 
photograph of a plant collected by Dr. Rose near Benson, Arizona, in 1908 
50. Echinocereus enneacanthus Engelmann in Wislizenus, Mem. Tour North. Mex. 112. 1848 
Cereus enneacanthus Engelmann, P1. Fend1. 50 ) | | _ 
Echinocereus carnosus Riimpler in Forster, Hand 
Echinocereus enneacanthus carnosus Quehl, Mona 
Cespitose, with man 
elongated, prostrate, 
1849. 
b. Cact. ed. 2. 796. 1885. 
tsschr. Kakteenk. 18: 114. 1908. 
ste 1 in di 
5 to 7 Co ten orming clumps one meter in diameter or more; joints often 
€r, nbs 7 or 8, prominent, more or less tuberculate, some- 
Fic. 44.—Echinocereus ferdtert. aphustdls Ib 
Ki 
: 
% 
