45 



Cacti.— Orcutt. 



46 



plant of Sonora. New Mexico. Chihuahua. Tex- 

 a.« and Arizona- the plants from San Luis Poto- 

 si is a distinct i-pecieti. 

 MAMMILLARIA SCHBBRII Muchlpf. 



"Globosa multiplex: mamniillis subglobosis 

 sui>erne sulcalis; aculeis radianlibus 2C-22 albis 

 adpressissubdistiehis. centralibus 4 reetls fus- 

 cis, iiifmovalde elongato8-101in. longo "-AGZ 

 1845, MH; 1&46, 373, is polymorpha [conoidea]. 



See salmdyckiana. 



Subgenus DOLICHOTHELE KS. 



MAMMILLARIA LONGIMAMMA P SC. 

 MAMMILLARIA SPHAERICA S. 



Subgenus LACTESCENTES. Plants de- 

 pre.- sed-glo! ose, rarely a little elongated; 

 jui. e n'iiky; tubercles usually angular 

 and somewhat leathery. Flowers as in 

 Eumamalaria, but rncstly small. 

 MA?. MILLARIA ANGULARIS L-O. 



MAMMILLARIA CAPUT-MEDUSAE 



Ctlo. 



Near Zimipan, Mexico. 

 M. Dl ACftNTRA Ja<obl AGZ 1856, 91. 



"Angiilofa; tet^agonw Tarile sphfercideo, snb- 

 umiiili'-ato saturate viridi lactesceute. M .ni- 

 illis ad basl:i rhomboideis obui e pyrainidali- 

 bns aiiice late aliter apidanatis; pnlvillis ovaii- 

 bus glab issvbapicalibns; axil if? Jmiioribus nu- 

 dis, dein ttoccnge aibolanaiis, sorius cenuo n'l 

 di-. setihus radialibns 5-6, diaphane albidis 



apice pubsphaceiatis serius ub'que albldi-, 

 subnlatis vix patulis. subtus et interne reeur- 

 viilis lariianter posilis, 2 ant 3 snperioribus bre- 

 vis^iTni!^. 3 inf>»ri(>ribus altero Umio !■ ngioribus; 

 acnleisctriitralibusS. multo validioribus longio- 

 rib;isqne, junio ibus cinereo-b unnei'' a]»if e ni- 

 grs, dein earneo cinereis apioe nlgii< ansibus, 

 Buperio'eereot''' eensim recurvat". Inferiore 

 re<'te (>atenieinferne recurvn'o, utroqne earuni 

 basin ^emi tt-reie. npire rotundat", infe'iori! 

 ferealtero aiKUiii lonciore. Flores parvulirii- 

 bicnndi, tnbo brevissini'i, oircji o^a^lllm ventri- 

 (• se d Irtiarii, snperiie coxrc'tato, petalis lanceo 

 laii~ br.fviter r»*rurvatis, ro>ei^ enm linea media 

 purpurea. St^iniii.um filamenta ro-eaanthe- 

 ipeque sordidf flrtvaj stylus elaminibus lungior 

 rns-iis.Rfginntibus 6 ■• ii<^ol.;ribu.s. Fl<i'-et 



uieiisibus ,Ju!MO . ! Jiilio Plaiitadt soripia alti- 

 t I'diii.- tri •"'lifa.'-i di.'.me'roqiiH poll. .^J^j. Acu- 

 Icoru" radiali m ■2aiit 3 superi lin. 1, cerer- 3, 

 li • 2 Inngi; acu'o inim cotitrnlinm superior lin. 

 fi-8!<>iiu'us. iiif<Ti"r poHicHu set ntra " 

 MAMMILLARIA FORMOSA Scheidw. 

 M. i'UNKlI Sch-idw AGZ 1841.43.— 



•' aftfX'ens, robnsta, umbilica'a, lae e virid- 

 js; axillis nudi.-, tandem eriniferii; crinibus al- 

 bis apice nigiescentibus ex mox unlcolnribus; 

 m-inmillis pyranildato-elrnedris; aT-eolis inf a 

 n\ h en. niammi!la:um imniert-is, nndis, Juriori- 

 b'ls vix tnmentosis; a^'iluis 8 maxime insequa'i- 

 bus, (intralil lonp'ssimo iucnrvdlo. nsscenti- 

 bus fnscis, tandem griseis. Truncus 3 poll 10 

 lin plins, fManieiro (5 poHicari; at-ulei exterioros 

 1^-1-2 in. long'', centralis }/.-& lin. longns." 



Mexico. 

 M.AMMILL.\BIA GABBII Rngelm. 



Cactus gabbii Coulter, U S na Hb cont 

 £:iOj: — 'Globose, 5-10 cm in diameter, sim- 



ple, tubercles cylindrical, slender, 12-14 

 rrm Icng, with woolly axils; radial spines 

 about 13, 5-8 mm long, lower ones longer 

 and stouter, especially the latest ones 

 pectinate; the central shorter, straight 

 and robust; flowers small, yellowiSh-red; 

 fruit unknown. — Type in Herb. Mo. Bot. 

 Gard. Among rocks, from San Ignacio 

 to Mission San Fernando, Lower Califor- 

 nia." 



Near San Quintin bay, Baja Cal. (Or- 

 cutt). 



Cactus brandegei Coulter, U S Na Hb 

 cont 3:76. 



MAMMILLARIA GFMINATA Scheidw. 

 — "Lactescens, trnneo geminato; vertice nmbil- 

 icato: iixiliis Innhtis; inaiiiinilliB tetragono-pol- 

 y»dris, viridibns; are>'lis junioribus IpDHtis, 

 dein nndis; aculeis exterioribus 6 rectis. stella- 

 ti>!. apice nigrcscentibus; cenirali 1 validiore 

 curvula nisrro Mammil re 4 lin. longjfi: aculei 

 exterioTes 2'-$ lin. longi centrnli« longitndir.e 3 

 lin."— AGZ 184', 42. 50<W ft alt rear Oaxsea. Mex. 



MAIV'MILLARIA GIGANTEA Hildm. 

 MAMMILLARIA GUMlvnPERA E. 

 MAMMILLARIA HEESEANA Mac Dow. 

 MAMMILLARIA HEYDERI Muehlenpf. 



".Globosa, virldis, vertice iiipiejso, axiUis 

 jnr ioribus 'a' atis, mamillis conicis, elongatis, 

 6 lineps longis, Slineas la'is. areolis Junioribus 

 albo tomentosis apice niamillariim dispositis; 

 aculeis radianiibns 20-22 albis setace'8. infeiiori 

 robnstiOii pnulnlum el -iigato, ceutrali 1, ereiito 

 cornoo basiaiiii eque fiiRf>o 2J^-3 lineas longo."— 

 MhlpfdtAGZ1848.20. Texas. 



Retel Gartenflora 1880, 52, f. 



Schecle. Boem Texas, 435 (1849). 



M. KRaMERI MuehpftAGZ 181.^,347: 



"Globosa. basi tandem prolifera: axillislnna- 

 tis; mammillis angulosis pyramidalis, juniori- 

 bus lanatis, aculeis exterioribus 4-5 rigidis, 

 central! 1 elongate 13^-2 poll, longo, omnibus al- 

 bis apice nigris Die pflanze ist aus Mexico, und 

 erhielt ic*i dieselbe vom Kramer in Hamburg, 

 unterden Namen M. macrantha." 



Runge sent under this name from San Luis 

 Poto^i. whi h bore flowers %inch long, J4 inch 

 across, 12 maroon purple sepals. 16 white petals 

 with maroon mid vein, 6 stigmata, style, fila- 

 ments and anthers white 

 M Schmidtii (schmittii) Ske. 



M. LEUCOTRICHA Scheidw AGZ 1840,338: 



"M. lactescens, simplex vel cffispitosa, cylin- 

 drlca, vertice umbilicato; mammillis pyramid- 

 atis quadrangularibus; axillis prinio nudis, 

 tandem lana abundanti; aculeis ciiniformibus, 

 albis mnnitis; areolis rotundis lana alba instruc- 

 tis; aculeis exterioribus 6, centrali 1, omnibus 

 rigibis subaequalibus fasc-is, tandenn carneis api- 

 ce sphacelatis. Fnictus pyriformis; flores ad- 

 huc ignoti " Sfexlco. 

 Jaeobi AGZ18 1, 11 

 ^ee maschalacantha. 



