294 CACTEAE. 



MAMMILLARIA. 



100. M. STELLA AURATA Marl. Iii Zuccar. Planl. nov. fasc. III. 101. t — Ivlongalo- 

 cylindrica subflcxiiosa flavcsccnti -vircns, valde ramosa: raniis hrcvil). subglo- 

 bosis, lana in axillis subnulla, in arcolis albida; niammillis brcvib. sublicmispliae- 

 ricis; spinis radianlib. I8-'20 inlcrtcxlis mammilla lonRiorib. llavcsccnlib. v. apice 

 subcroccis verruCDSO-scabris, ccnlrali nulla; florib. [lallidc sulTurcis. — M. Ipiiuis 

 var. fl. Pfcitr. Cactcae p. C. — Ilabilat in Mexico. 



101. M. ELEPIIANTIDCNS Lem. Cacl. aliquol. novar. p. 1. f — Subglobosn simplcx: 

 niamniillis latc gibbosis, ad apiccm obtusalis, bilobalis cl in faciem superiorcm 

 sulco ncc non profundo, in junioribus lana parca suffuilo notalis, ad basin sub- 

 pcnlagonis, fere polliccm lalis, aut 8 lin. allis; veterioribus cliam crassiorib. cl 

 demum dcprcssis; arcolis ovalis, juniorib. lana alba munitis, mox nudis; aculcis 

 prima juvcntute albo-lutcscentib., mox sordide griseo-fusccscentib., rcgulari- 

 lcr dispositis, incurvis, ad imum convcrsis, validissirais rigidissimis, 8 aul 9 lin. 

 in longum assequentib. , uno supcriore breviori, graciliore, lateralib., quorum 

 2 primi paullo tenuiorcs, quatuorquc reliqui fere aequales, poslremo dcniquc in- 

 fimo paullo longiore, cenlrali scmpcr nullo. — Ilabitat ? 



,5. Cylindraceae. 



102. M. PALLESCENS Scheidw. in Otto ct Dietr. Allg. Gartenztng. IX. 41. t — Lac- 

 lcscens, cjlindrica aut ovata: vcrlice umbilicalo sub aculeis abscondilo; axillis ma- 

 xime lanatis, lana aculeis adhaercnle cl mammillas involvenle; areolis tomenlosis, 

 landcm nudis; mammillis polyedris laete viridib., mox pallescenlib.; aculeis 4 

 crucialim dispositis angulatis rccurvis, supremo maximo sublorlo, omnibus ri- 

 gidis carneis. — Uabitat in Mexico, altitudinc 5500 pcdum. 



103. M. STENOCEPHALA Schcidw. in Otto ct Dietr. Allgem. Gartcnzlng. IX. 43. t 



— Pyramidata, viridis vel subglauca: axillis setoso-Ianatis; mammillis exacle co- 

 nicis; arcolis juniorib. villosis, landemnudis; aculeis 4rigidis corncis, apice ni- 

 gricanlib., 3 supcriorib. divergentib., infimo longiore, omnib. nascentib. purpureis, 

 tandem griseo-carneis. — llabitat in provincia Mcxicana Oaxaca. 



104. M. VIRENS Schcidw. in Otto et Diclr. Allgem. Gartenztng. IX. 43. t — Lactes- 

 cens viridissima subclavala aut cylindrica, simplex vel biceps: axillis nudis, lan- 

 dem lanalis et crinifcris, crinib. albis ; arcolis juniorib. luleo-lomentosis, tandem 

 albis; mammillis polyedris viridissimis; aculeis 6 stellalis, corneis, apicc nigres- 

 centibus, centrali uno saepissimc deficicnle. — Habitat in Mexico. 



105. M. SERICATA Lem. Cact. nov. gcn. ct spec. 44. t — Siniplcx? globosa aul sub- 

 elongala minima intcnse laeteq. viridis; axillis valde lanatis ; mamraillis cylindri- 

 cis confertissimis attenuatis; arcolis tomentosis; aculeis innumerabilib. in series 

 non semel superpositas ordinatis, graciliorib. quam qui maxirae, radiantib., plane 

 sericeis, in fioccos tenuissimos desinentibus, centralibus nuUis. — Mexico. 



106. M. HDMBOLDTII Ehrenbg. Linnaea XIV. 378. t — Simplex v. pluriceps, glo- 

 bosa V. dcpresso-globosa, aculeis stellaiis tola vestita: niamraillis viridib. cylin- 

 draceis glabris, apice rotundatis, aculeis stellatis 80 v. supra inaequalibus glabris 

 acutis rectis (2-3'" longis); areolis primum parum tomentosis, demum glabris lu- 

 tescentib.; axillis breviler alboq. tomentosis longe sctosis; florib. intcnse rubris, 

 mammillas superantib.; stigmate trilobo; slaminibus rubris; antheris auranliacis. 



— Crescit in fllcxico iulcr Yzmiquilpan ct IMeslitlan. 



107. M. SCHLECIITENDALII Ehrenbrg. Linnaea XIV. 377. t — Cylindracea simplex 

 V. ramosa (3-4" diametr. lenens) pedalis, aculeis incurvis reticulalim obsila: mam- 

 millis quadrangularib. conicis; disco ovali brcvitcr lomcntoso; aculcis 10-lG ad- 

 prcssis incurvatis (3-3'/j lin. longis) aureis slellatis; axillis primum brcviler to- 

 mentosis, deinde macula parva lutea in mcdio tomento. — Crescit in Mexico 

 ad San Onofre. 



108. M. MICRACANTHA Miq. Linnaca XII. 16. t — Obovato columnaris: vcrlice 

 concavo; mammillis subconfertis gracilib. elongalis tetragono-pyramidalib. aut 

 faciebus accessoriis polygono-pyramidalib., glauco-viridib.; axillisdense albo- 

 lanatis; areolis in mammillarum apice minutis, juniorib. albo-Ianatis; spinis 

 2-4 minutissimis albidis, apicibus fusco-nigris; si duae sunt, una sursum, 



