581 



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. 



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 



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 

 Madre mountains in Mexico. A power- 

 ful drug is prepared from the plant by 

 chemists. 



582 



omnibus ultrapolli-caribus. Diametro 

 12-15 pollicari, altitudine 4-5. (Pfr. 

 Abbild. 2. p. 14 sub Echinocacto.)" In 

 Index Kewensis this is doubtfully re- 

 ferred to Cereus auratus a species 

 published by Lemaire some years 

 later, a description of which we have 

 not seen. 



E. Bridges!! Salm-Dyck, HD ed. 2, 181 

 (1850): "E. caule subellipsoideo in- 

 ferne prolifero nitide viridi sinubus 

 latis, costis 12-14 rotundatis inter 

 convexis, pulvillis immersis 

 parce griseo-tomentosis, 

 aculeis subaequalibus subelongatis 

 rigidissimis, exteriorbus 9-11 inter- 

 ioribus 4, omnibus primo brunneis dein 

 cinereis. Caulis hucusque poll. 5-6 

 altus et diametro 3-4 pollicari, utri- 

 nque paulum attenuatus, inferne pro- 

 liferus. Costae crassae, obtusae, ob- 

 lin. 5-6 



large, delicately colored flowers. Easy 

 of cultivation, "and very popular. 

 ECHINOPSIS ALBISPINOSA KS. 



KS, MfK 1903:154, f. 



E. amoena Dietrich, AGZ 1844:187: 

 E. obovata, pallide viridis, vertice ro- 

 tundato; costis 11-12 obtusis, inter- 

 rupti tuberculatis: aculeis e lana parca 

 decidua 7, brevibus rectis, albidis, 

 patentibus, imo longiore." 

 K. amoenissinia Wender. Analect. 

 Krit. Bemerk. (1852) n. 6. Habitat? 

 E. apiculata Linke, in C. Koch & 

 Fint. Wochenschr. 1:85 (1858). Bo- 

 livia. 



E. aurata Salm-Dyck, HD ed. 2, 182: 

 "E. depresses, viridis, sub 28 angula- 

 tus, vertice concavo dense aculeatus; 

 costis verticalibus. compressis, circa 

 areolas inflatis; areolis remotis (fere 

 poll. 1) oblongis, tomento denso ful- 

 vido-algido, tandem cinereo munitis; 

 aculeis rigidis, vix curvatis, luteis, ex- 

 teriorbus circa 12 sub compressis, cen- 

 tralibus 1-2 pleurumque subulatis, 



(Pleurumque ,) 1m. 12 longi cen- 

 trahsque sesquipolhcaris, rigidissimi 



SUnt; Sed m Var " R dU P l0 ^ngiores 

 subflexiles, magisque sursam adscend- 

 entes." On page 39, Salm-Dyck cites 

 Echinocactus leucanthus Gill, Bot. 

 Reg. t. 13 (1840), and Cereus leucan- 

 thus Pfeiffer, Enum. 71, as synonymes, 

 and called the variety by the name 

 stylodes. See Pfeiffer & Otto, Abbild. 

 Cact. 1 sub t. 4. A synonym of Cereus 

 leucanthus fide Index Kewensis. 

 E. cristata Salm-Dyck, HD ed. 2, 38, 

 178 (1850). Based on Echinocactus 

 obrepandus, published by the same au- 

 thor in AGZ 1845, 386, as from Bo- 

 livia, of which the following is the 

 original description: Caule depresso- 

 globoso nitido viridi 17 costato, costis 

 compressis inter pulvillos valde cris- 

 tatim obrepandis, pulvillis immersis 

 subconfertis griseo-tomentosis; aculeis 

 rigidis exterioribus 10 recurvato- 

 patentibus, summo cum central! soli- 

 tario longioribus erecto-recurvulis." 



