Si 



The West American Scientist. — X. 



8a 



Globose to cylindrical, rarely over 18 inches in 

 diameter but sometimesS feet high, with 12-21 

 eompressed tuberculatcd ribs; spines dull red, 

 7 stout centrals and 11 radia Is — the stoutest not 

 rarely 4-6 inches long and M inch broad, hooked. 

 ECHINOCACTUS POLYANCISTRUS EB 



The Hermit cactus, so-called because 

 it is rare to find more than one in a 

 place, is a strikingly beautiful cactus 

 which I have sen only on the Mohave 

 desert in its wild state. The largest 

 plant I have seen is 18 inches high and 

 4 inches in diameter; each tubercle 

 bears three to seven hooked, round, 

 brownish-pink spines, with which are 

 interspersed fewer ivory white spines, 

 not hooked, very pleasing in contrast. 

 Flower over 2 inches long, of equal 

 width, petals bright magenta, green at 

 base, filaments and stigmata green, 

 anthers white. They were once cata- 

 logued at $15 apiece, and are still rare 

 in collections, unfortunately seldom 

 long surviving transplanting from 

 their native sands. Too much mois- 

 ture soon proves fatal. 

 ECHINOCACTUS POLYCEPHALUS E- 



Mohave desert, a rare & handsome species oc- 

 curring usually in great clusters: spines p. 

 ECHINOCACTUS SCHEERII Sm-Dyk. 



Texas, a pretty specie* resembling breviham- 

 atus. 



ECHINOCACTUS SETISPINUS Engelm. 



Large yellow fis., coral red fruit. 

 ECHINOCACTUS SILERI Engelm. 



ECHINOOACTUS S1MPSONI Engelm. 

 ECHINOCACTUS SINUATUS Dietr. 



"E. subglobosus, apice rotundatus; costis 13 

 cassis angulato-sinuatis, sinubus profundis a" 

 cutis, areolis innatis demum subnudis, aculeia 

 subduodenis, marginalibus 10-11 inaequalibus 

 setaceis rectis, junioribus hyalinis erubescenti 

 bus, adultioribus albo-griseis opacip, centrali 

 unico longiore ensiformi apice hamato. Habi- 

 tat in Texas '— Dietr. AGZ 18S1. 345. 



ECHINOCACTUS TEXENSIS Hoepf. De- 

 pressed, 13 to 27 acute ribs; spines stout, an- 

 nulated, 6 to 7 radical ones and a stronger 

 central spine; flowers rose colored; fruit sub- 

 globose, pulpy, red, covered with spiny bris- 

 tles and soft wool, crowned by the wooly re- 

 mains of the flower. 



ECHINOCACTUS TROLLIETI Rebut. 



Identical with E. unguispinus? 

 ECHINOCACTUS UNCINATUS Gal. 

 Var. WnioHTii Engelmann. Texas, rare, 

 ECHINOCACTUS UNGUISPINUS Engtn 



Rare, Mexico. 



ECHINOCACTUS VFRIDESCENS Nutt. 

 The Turk's Head cactus, that occurs At San 

 Diego, California; very variable, but usually 



depressed, less than a foot in diameter, with 



strong, annulated reddish spines; 13 to 21 



ribs; fruit greenish or sometimes tinged with 



magenta, very sour, enclosing numerous black 



seeds. 



ECHINOCACTUS WHIPPLEI E. & B. 



Whipple's hedgehog cactus is only 2 

 to 5 inches high, ovate-globose, char- 

 acterized by seven compressed white 

 radial spines and four broad hooked 

 central spines. Flower iy 2 inch long, 

 petals and filaments pale straw color, 

 the style and seven stigmata green. 

 E. WILLIAMS!! Lem ex Salm. 



"(Ueni Cat. Cels. 1845, sine descriptione). C. 

 humili inferne ramoso superne tuberculato 

 cinerascente viridi, vertice impresso, tuberculis 

 latis obsoletissime polyedris is costas subconflu- 

 entibus pulvillisque instructis remotiusculis 

 lanigeris, lana cinerascente densa longa in peni" 

 cillum erectum collecta. Floribus parvulis ros- 

 eis."— Salm. AGZ. 1845, 385 



The Mescal Button, or Turnip cactus, 

 as it is sometimes called (which forms 

 the type of Coulter's genus Lophop- 

 hora) is a small spineless plant with 

 pretty rose-colored flowers. The plant 

 rarely exceeds 3 inches in diameter, 

 little appearing above the surface of 

 the ground, but when eaten it pro- 

 duces peculiar intoxicating effects sim- 

 ilar to those from the use of opium, 

 and the plant enters into certain re- 

 ligious rites of the Indians of the Sierra 

 Mjadre mountains in Mexico. A power- 

 ful drug is prepared from the plant by 

 chemists. 

 ECHINOCACTUS WISLIZENI Engelm. 



The strong hooked central spine gives this the 

 name of the Fish-hook cactus said to have so 

 beenutilized by the Indians; the large size and 

 have given it the name of Barrel cactus; to the 

 Mexicans, in common with most species of the 

 genus, it is the Visnaga, utilized in confection!. 

 Var albispina Tourney, white spined. 

 Var. :decipien8 Engelmann. 

 E WRIGHT1I Engelm.— var. of uncinatus. 

 Genua ECHINOCEREUS Engelmann. 



Included under Cereus, 

 E. candicans Hort.— see rigidissimus. 



Genus ECHINOPSIS Zuccarini. 



Included under Cereus. 

 JB. EYRIESU: short spines, white fls, 



ECHINOPSIS MULLERI. A hybrid, of rapid 

 growth, blooming early, and with its large 

 satiny rose-colored flowers is justly called the 

 finest of its class. 



Doubtless only a form of multiplex. 



Genua EPIPHYULUM Pfelfler. 



