MELOCACTUS. CACTEAE. ^JOU 



29. M. GRISEUS H. L. Wendl. I. c. 183. f — Trunco caesio ovoideo; costis 15, iuter 

 tubercula valde elevatis hinc undulatis; areolis brevissime griseo-Ianatis; spinis 

 slrictis, fere rectis, dilute brunneis, radiantib. 8, centrali 1; cephalio griseo. — 

 Habital in Columbia. 



30. M. PENTACENTRUS Lem. Cact. nov. fasc. I. 108. — Miquel 1. c. 191. — Truuco 

 laete viridi subconico-globoso; .costis 11 subacutis subcrenatis, ad areolas vix 

 inflatis, siuubus latissimis; areolis ovalis semper nudis; spinis 5 subaequalib. 

 surrectis, 4 lateralib., quinta infima vix longiore, albo-rubentib. ; cephalio couico 

 albo; setis annulalim fasciculalis roseis. — In Rrasilia (Bahia). 



31. M. LEMAIRII Miquell I. c. 192. t — Conico-oblongus: costis 10; luberculis remo- 

 tiusculis; spinis latis paullo compressis rubris, centralib. 4, exlernis fere novem. 

 — Habitat in St. Domingo. 



32. 31. OREAS 3Iiquel I. c. f — Oblongus: costis 16; fasciculorum conferlorum 

 nudorum v. lanatorum spinis cenlralib. 8, magnitudine variis filiformi-flexuosis, 

 radiantib. paucis exiguis; cephalio plano, lana longa albicante. — Circa Buhiam. 



33. M. CRASSISPINUS S. Dyck in Olto et Dietr. Allgem. Garlenzeilng. VIII. 10. - 

 Conicus laele-viridis: costis verticalib. 8-10 sinuatis, circum areolas inflatis, si- 

 nubus profundis acutis; areolis remotis elongatis tomentosis; aculeis subulatis 

 crassissimis fuscescentib., exteriorib. 8-10 recurvato-patentib., infiniis longiorib., 

 cenlralib. 1-4 rectis. — Echinocaclus Lemairii Monv. ex Lem. Cact. aliq. nov. 

 17. t — Crescit ? 



Species vix nota. 



34. *M. LEUCASTER Hffmsgg. Nachtr. zu dem Verz. v. Pflzn. 1833-35. p. 22. — 

 M. communis var. spinis breviorib. albicanlibus. — Crescit ? 



Subgenus III. ANHALONIUM Lem. 

 (Lem. Cact. Nov. gcn. et spec. p. 1. t) 

 Quarundam Aloearum (A.relusae) habitus totus: tuberculis exareolalis necspi- 

 nosis foliiformibus prismaticis, basi insertionis folialim applanatis in series spirales 

 dispositis, interslitiis (axillis) lana longa persistente munitis; floribus Mammillaria- 

 rum ex axillis orientibus; baccis quorumdam Echinocactorum roseo-albis laevi- 

 bus; seminibus Echinocaclorum Melocactorumque in pulpa parva nidulantibus; 

 cotjledonibus tuberculalis crassis; caudice nullo. 



1. A. PRISM.4TICUM Lem. I. c. \ — Humile depressum sempervivoides glauces- 

 cenli-cinereo-virens simplex: areolis aculeorumq. fasciculis nullis; tuberculis 

 prismaticis triangularib. , ad insertionem foliatim applanatis, in series spirales 

 disposilis, axillis lana longa persistente munitis, Dores et fructus gerentes mam- 

 millarineos. — Ariocarpus retusus Scheidw. Descript. diagnost, Cact. nonnull. 2. 

 t t. l! — Crescit in rupibus porphyricis prope St. Louis Potosi. 



5175. ECHINOCACTUS Lk. et Otto. 



(Lk. el Otlo, Verhndlngn. des Gartenbver. f. Pr. III. 420. — DC. Prodr. III. 461. — 



Pfeiffer, Enumer. diagn. Caclear 47.) 



§. 1. Costati: Costis et sinubus regulariter alternantibus subverticalibus 

 areolatis crenatis vel tuberosis, nunquam interruptis. 

 * Costis rotundis. 

 1. E. OTTOMS Lehm. mss. ex Pfeiff. Enum. diagn. Cact. 47. t — Depresso-globo- 

 sus v. ovatus viridis, basi tandem lignosus 10-12-angulatus: sinubus aculis; cos- 

 tis rotundis; areolis albis tomentosis immersis; aculeis exteriorib. 12-18 radiantib. 

 flavidis tenuib. rectiusculis, centralib. 4 fusco-rubris validiorib., supremo brevis- 

 simo, 2 lateralib. horizontalib., inCmo longissimo deflexo, omnib. rigidis paten- 

 tibus. — Cereus Ottonis Lehm. Act. nov. nat. cur. XVI. P. I. p. 317. t. XV. — Lk. 

 et Otto, Icon. t. 16. — Bot. Mag. (. 3117. — Crescit in Mexico. 

 ^. tenuispinus. — Aculeis centralib. 3-4, omnib. breviorib. et tenuiorib., fere 

 seiiformib.; vertice valde impresso. — E. tenuispinus Lk. et Otto, Verhndlngn. 

 d. Gartenbauv. f. Pr. HI 421. l. 19. — In Brasiliae prov. Rio grande. 



