35 



Cacti.— Orcutt. 



36 



ECHINOCACTUS PILOSUS Gal. 

 Near San Luis Potosi. Mexico. 



ECHINOCACTUS PLACENTIFORMIS 



KS. 

 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- 



Heads many from a sL.gls b se, ^-2% 

 feet high, globose to 1 cyiindiic,. rios io-2,1, 

 acute: circular areolae beaiing 8-12 stout 

 compressed annulated . curv.d reddish 

 gray spines, ad radial, er 4 stouter cen- 

 tral ones: flowers enveloped in a mass of 

 dense white wool, iy 2 inches ^ng, p^a o 

 about 30, lance-linear, yellow; about 10 J 

 rigid dark pointed ee^als upon the ovary, 

 hidden m the woo , those of the tube 

 similar and eaually numerous; stigmas 

 8-11, linear; fruit dry, fnli of angular 

 wrinkled and minutely tuberculate seeds 

 4 mm long. Gravelly soil on the Mohave 

 and Colorado' deserts, :'n California, flow- 

 ering in F, fruiting in Mr. 



EICHINOCACTUS POTTSII S. 

 ECHINOCACTUS PUMILUS Lem. 

 ECHINOCACTUS RECURVUS L-O. 



Oaxaca, Mexico. 

 ECHINOCACTUS RINCONADENSIS 



Pos. 

 ECHINOCACTUS ROBUSTUS L-G. 



Tehuacan, Pcebla, Mexico 

 ECHINOCACTUS SAGLIONIS Gels. 



Argentine Republic. 

 ECHINOCACTUS SAUSSIERI Web. 

 EICHINOCACTUS SCHICKENDANTZII 



Web. 



Argentine Republic. 

 ECHINOCACTUS SCHILINZKYANUS 



F Hge jr. 



Paraguay Republic, South America. 



ECHINOCACTUS SCHUMANNIANUS 

 Nic. 

 Paraguay Republic, South America. 



ECHINOCACTUS SCHEERII Sm-Dyk. 



ECHINOCACTUS SCOPA L-O. 

 Brazil, South America. 



ECHINOCACTUS SELLOWII L-O. 

 State of Rio Grande do Sul, Brasil. 



ECHINOCACTUS SENILIS R A Phi'. 



Chile, South Amer ca. 

 ECHINOiCACTUS SETISPINUS E. 

 ECHINOCACTUS S1LERI Engelm. 



ECHINOCACTUS SIMPSONI h nyelm. 



Hedgehog Cactns of Colorado; the 

 spines, ranging from white throi gh 

 shades of straw, yellow and brown, near- 

 ly hide the plant; flowers shell-pink to 

 bright rose in color. 

 Variety MINOR Engelmann. 



Button or Snake Cactus; snines arrang- 

 ed in beautiful star-shaped clusters; flow- 

 ers pale rose. 



ECHINOCACTUS SINUATUS Dietr. 

 ECHINOCACTUS SMITHII Much. 



Near San Luis Po f osi. lV'eidc© 

 Schinocaotus tetracrmth- s hm, 13 Sel- 



owii. 

 ECHINOC ACTU S SUBM Ml MULC S S 



Lem . 



South America. 

 ECHINOCACTUS SUBNIGER Pos. 

 ECHINOCACTUS TABULARIS ■ C -.Is. 

 ECHINOCACTUS TETRAX PHUS Otto. 



ECHINOCACTUS TEXENSIS Hoepf. 



Echinocactus tricolor Hort, is bice lor. 



Echinocactus tricornis. Monv, is alt eo 1 ens 



ECHINOCACTUS TRICUSPIDATU8 



Scheidw. 



ECHINOCACTUS TROLLIETI Rebut. 



Is unguispinus. 



EiCHINOCACTUS TULENSIS Pos. 

 ECHINOCACTUS TURBINI a ORMIS Pf. 

 ECHINOCACTUS UNCINATUS Gal. 

 ECHINOCACTUS UNGUISPINUS Engm 

 EiCHINOCACTUS VILLOSUS Lem. 



EICHINOCACTUS VIRIDESCENS Nrtt. 

 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 1% inch long, 

 petals and filaments pale straw color, 

 the style and seven stigmata green. 

 ECHINOCACTUS WILLIAMSII Lem. 



Anhalonium williamsii oerster handb 233 



Lophophora williamsii et var. lewinii Coulter 

 nathbeont 3;131. 



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- 



