ECHINOCACTUS. 



CACTEAE. 315 



narum orbem productis, ibique proliferis et floriferis; aculeis exterlorib. 7 paten- 

 tib., rectiusculis, centrali 1 erecto, vix rccurvulo (interdum nullo), omnib. rigidis, 

 nascentibus flavis, tandem albis. — 3Iexico {prope Zimapan). 



50. E. SUBULIFERUS Lk. et Olto, Verhandlngn. d. Gartenbver. f. Pr. III. 427. t. 27. 

 — Pleiff. I. c. 07. t — Caule subgloboso viridi; costis 8-10 tuberculalis; spina 

 centrali maxima erectiuscula recurva, 4-5 patentissimis, 4-6 exlimis divaricatis 

 tenuibus. — Crescit in Mexico. 



§. 3. Species parum notae. 



51. E. INTORTUS DC. Prodr. III. 462. — PfeiCf. I. c. — Oblongus 13-lG-angulatus: 

 angulis superne in spirara intortis; aculeis mediocribus, subinde incurvatis. — 

 Cactus inlorlus Will. Dict. ed. 8. no. 2. — Haw. Syn. p. 174. — Anligua. 



p. purpureus Plum. Spec. 19. mss. vol. III. t. 8. — Cactus nobilis Lam. Dict. 1. 

 p. 537. — Totus purpureus, aculeis candidis. — S. Domingo. 



52. E. DEPRESSUS DC. I. c. 403. — Pfeiff. I. c. — Subglobosus, apice depressus: coslis 

 verticalib. 20 obtusis subluberculatis; aculeorum fasciculis conferlis; aculeis e to- 

 mento albido rigidis , pallidlssime fuscis, centralib. 3-4, radiantib. 10-12, infirao 

 validissimo. — Caclus depressus Ilaw. Syn. p. 173? — In America calida. 



53. E. MELOCACTIFORMIS DC. Revue p. 38. t. 10. — Prodr. III. p. 402. — Pfeiff. 

 1. c. 68. — Subrotundo-ovalus oblusus: costis verticalib. circiler 30; aculcis fas- 

 ciculalis divergenlibus inaequalibus, subfuscis. — In Mexico. 



54. E.? AUREUS Meyen mss. ex Pfeiff. I. c. 68. — Erecto-repens G-anguIaris sub- 

 articulalus: aculeis 6-7 longis rigidis, ccntrali 1 erecto longissimo. — Flores aurei 

 formosissimi, 1 poll. longi; calyce villoso. — Cact. aureus 3Ieyen, Reise um die 

 Welt, B. I. p. 447. — In Peruvia (provincia Arequipa). 



55. E.? CEREIFORMIS DC. Revue p. 115. — Pfeiff. I. c. 68. — Subcylindraceus 

 viridis: costis 13 compressis; sinu aculo; crista subobtusa; fasciculis in quaque 

 cosla 3; areola subvelutina; aculels subgriscis rigidis tenuib., 1 cenlrali recto, 7 

 radiantibus. — Specimen mancum 4 poll. longum. An Cereus quidam junior? — 

 Crescit in Mexico. 



Species addendae. 



Sectio I. MACROGONI Lem. 



Angulis vaUdis. 



56. E. MELOCACTOIDES Lem. Cact. aliq. nov. 23. t — Sphaeroideus valde umbi- 

 licatus viridis valide angulatus: anguli crassi validi 25, ad summum laeves, ad imum 

 transverse plicali, crenato-repandi, vix ad areolas inllali, 15-18'" alti, sinus pri- 

 mum acuti recti, deinde fere plani; areolae ovatae iramersae, juniores lana albida 

 brevi mox decidua instructae; aculeorum fasciculi conferti 6-8'" dislantes; aculei 

 rigidissirai 9-10 rubro-fusci, basi subulati, sex laterales recti subaequales, 18'" 

 longi, unus supremus brevior, undecimo aliquando cum comitante saepiusq. de- 

 ficienle, unus infimus longior pollicaris robuslior, centralis nonus paullo brevior 

 et crassior, a laterib. subcompressus. — Crescit ? 



57. E. CURVICORMS 31iquel, Linnaea XIII. 5. t — Deplanato-hemisphaericus aut 

 subplacentiformis, vertice paullo impresso nudo glauco, viridis: costis 13, basi 

 latis, dorsis acuatis, infra areolas turaidls, sulcis rectangulis profundis, superius 

 acutis, inferius obtusis deplanalis; arcolls remotis ovalib., supra appendice sub- 

 triangulari (inaequaliler quadrangulari, laterib. duabus concave arcuatis) instruc- 

 tis, breviter fusco-albido-lloccosis; spinls validis, internis 7 planis, trib. supe- 

 riorib. erectiusculis rectis, cenlrali valldissima longlori deDexa, reliquis duplo 

 latiori, costa longitudinali instrucla, apice uncinata, duabus inferlorib. minorib. 

 rectis et tertia infima impari minima suhcurvala, pone illara affixis et cum ra- 

 diantib. in eodem circulo silis, al dlrectione formaq. distinctis, spinis cxlernis 

 10-11-12 mullo tenuiorib., radlantlb. horizontalib., adjacentes costas attlngentlb. 

 omnib. Iransverse strlalis subsulcalis, fusco-llavis, griseo-pruinosis. — Cresclt ? 



58. E. TERSCHECKII Rchb. in Terscheck, Suppl. p. 3. — Obovatus saluralc viridis 

 nitens, 10-anguIaris: sulci iufra minus impressi, supra rectanguli, acicb. distinctis; 



40* 



