43 



Cacti.— Orcutt. 



44 



lOQg, the lowerone nnre rigul, 16-'3'i nun long, 

 brownish-black; fis deep purple, '2-."5 c-in long & 

 wide. San I^uis Potosi; C'laliuila; iNucvoJ.eon. 

 MAMMILLARIA CORNIPEEA P DC. 

 MAMMILLARIA DASYACANTHA E. 

 Mamillaria echinus E. is radians. 

 MAMMILLARIA ELEPHANTIDENS 



Lem. 

 MAMMILLLARIA MACROMERIS E. 

 MAMMILLARIA MISSOURIENSIS 



Sweet hort Brit 171 [1827]. 



M simplex T-G Fl N Am 1 :55.3 [1840]. 



M nuttallii E pi Feud 49 [1849]. 



M notesteinii Britton Torr cl b 18:367 [1891]. 



Oactus mamillaris Nutt Gea 1 :295 [1818] non l. 



Globose, 3.5 cm diam , simple; raamiuas ovate, 

 12-14 mm long, .slightly grooved, ladiais 13-17, 

 straight, whitish, unequal, setaceous, 8-10 mm 

 loag; central more robust, longer, puberiileut, 

 or wanting; fls 2.5 cm long, stigiua.s '.i-.5; iruit 

 globose. Scarlet, G-8 rain diam., seeds globo.se., 

 blaoK. pitted, 1.1mm diam. .»,ontana, Kansas, 

 Cjloraao, Nebraska, South Dakota. 



Star Cactus; dwarf; flowers yellow or 

 salmon color. 

 MAMMILLARIA NICKELSAE K Br. 



"Soon arid densely cae.-pitose. glaucous 

 and often purplish, 4-6 cm high, hemis- 

 pherical or glubose; tubercles 10-12 mm 

 long, becoming c,ui:e as Lroad and um- 

 biicated: spines 14-18 ail radial, slender, 

 at fir;t }ell :,v.ish wi h da: ker t.p.:, later 

 a:l gray; lower spi es 8-10 mm long, the 

 upp^r one-third longsr, sti uttr, ex end- 

 ing into the groove -md foiming a fas- 

 cicle, the ''■lubtered fa ci.les m k rg an 

 upright tuft at ihe ver.ex; u^wers 5-i cin 

 in full e pansion. .-aid t ■ b? b gu yel- 

 low will red center; fruit unknown. 

 £!outhViard f i om I predo, Texas. Named 

 for the collectO'-, Mrs. Ania B. Nicxels, 

 and offered in catalo^ius a- M. Nickelsil. 

 Evi'entiv cl sely relf>tel to M. sulcata 

 Engelm.' — Kather n. Brai.degee, :^oe, 5: 

 il (ag 19C0). 



Mammiliaria pect'nata E. is radians. 

 M. POTTSII S.;heer ex.<a!m K!)ed2, 04. 



Cylindrio:il, .'i ^-Hr, cm hisrh, •2.5-3 diam, some- 

 v.hat- branehna:; tulnMcl'.s ovjitn, ohiusm, light 

 ly grooved, axili wo > ly, radi Is ■ louder, white, 

 very ou erous, rigid; ciitrals ().12, sonier, tls 

 pinkish; scarlet, cbivate friiil. lexas; ( h.ii a- 

 iLua; Uuiango. 



Cactus pottsii OK rev gen pi 2<il; C lUUer llo 



Mleona '•■>s .\'-Z 1853, tMr-'-.tolliger.c M. 

 caule e» Imdraceo interduiii prolifero dinmetro 

 poUicari 4-5 p.dl. alto glauco, inamillis bre\i- 

 bus confertis; axillis lanatis, are.di- nudi<, acu. 

 leis exterior! i^ns permultis inturtexti al'iidis, 

 centralibus 8-12. exteriores supevautibus rta- 

 vescentibus, suiiimo .-iiibcurvatoalbu sub|iurpu- 

 rascente " Nupvo Leon 

 MAMMILLARIA RADIANS P DC. 

 MAMMILLARIA RADIOSA E. 



M. aUersoni, arizon'Crt. chlo aiitlia, deserti 

 MAMMILLARIA RECURYATA E. 

 MAMMILLARIA STROBILIFORMIS Shr. 

 MAMMILLAFIA SULi OLANATA Lem. 

 MAMMI; LIRIA VIVjPARA Haw. 



Puip.e and white sp.n s covir the en- 



tire plant: flowers bright ijurple, 3.") cm 

 If ng and broader w'.ien fully expanded, 

 s}iowy. Montana, Nebraska, Colorado, 

 Idaho, Washington and British America 

 — consequently one of the most hardy spe- 

 cies known. 

 MAMMILLARIA WISSMANNII Hildm. 



Section G' ANDULIF'ERAE. Cylindr e- 

 al; mammae cylii:drical .jcng, or ova' and 

 rr ore or less globose; grojves bearing 

 more or le=:s co ispicuou.-? glands, the 

 grooves cften absent in young p an s, the 

 g ards scmtiimes n the axils or at the 

 ba.;-e cf the tubercles. 



MAMMILLARIA ASTERIAS Cels. 

 MAMMILLARIA BREVIMAMMA Zucc. 



Near Ziinipan. M xico. 

 MAMMILLARIA CLAVA Pf. 



''C;lavHto-C(duninaris, inten>^e viridis: axiH< 

 tomentodenso a lb. )etglaiidula simplify rni cUa 

 in.structiy, uio.x plaiiissimis, luidis; mhmmillis 

 elongatis erectis, dorso suli'aiis, bast obliquf' 

 tetragoni-'; areolis albo-villosis infraapicalibns; 

 aculeisr. eiis, corneis, suba>qualihus, radiapli- 

 bus 7, ceutraii 1, pauloloiigiore, crissiore." -Pfr 

 .VGZ 1810,28-2. Mexico— Khrenb • g. 



Bot mag 1 4358 Otto & Dietr AGZ 1845, 234-5. 



M dolichocentra Lem. 

 MAMMILLARIA DOLICHOCENTRA Dm 



Two distinct species have been ficured un- 

 der this name by Foerster, Schumann, & Lem 



Seeclava. 

 MAMMILLARIA ERECTA Lem. 

 MAMMILLARIA GLANDULIGERA 



Otto ex Pietr .\OZ18t8, 2!18:— "obovnta, sub- 

 glauoes'-ens axillis nudis; mami'lis hrevibus, 

 pyramidatis, subtcre'ltms. albido-punca i-, 

 dorso glandular roseo albo insir'ictis; a eolis 

 subnudis; acuieis exteri lidbus steliatim dispos- 

 itis luimerosis flavesoentibus demum a'bi , 

 rentralibns ternisvel quateniis subulatis fus- 

 cis, unico patente, f-.weteris erectis. Mexico." 



Is Ottonisfidp K**. 

 MAMMILLARIA MACROTHELB Mart. 



Near Zimipan. Mexiico. 

 MAMMILLARIA OTTONIS Pf. 



"Globosa simplex obscure griseovii ens; ax- 

 illis fascieulo lana? albidas et glandula rubra to- 

 mentoalbo cincta instruetis; mammilliK crassis 

 mammreformlbus, basi intei-dnm i-onfluenti- 

 bus, df)rso u>que ad glan<hilani wulcatis; areolis 

 junionbus albo-villosis; .sculeis radiantibub 11- 

 12 snbaiqiiaiibus rigiiiis rectis, 2 s nnmis gr ic'li- 

 oribus pubPiecti , flavesctnt., apii-e fusC, tan- 

 dem fu'^co.cinereis, centralibus 3 rarius 4, (siini- 

 inopleruinque deti'-iente) subdecussati-*, rigidl- 

 "libns. corm^is, inflmo lontjigsimo naf^nte re- 

 ciuvub-).'— Pfr AGZ18:^8,'-;74. islmfr.il d'ji Moii 

 te, *iexico— Eh'C.n.'erg. 



MAMMI LLARIA SALMDYCKi ANA 



Scheer ex Salm HD ed 2, 1:^4 [1850]. 



M Scheerii Muehpf AGZ !9-;7, '.i7, non 18)5. 



M roljusi- pina ^ohoii ex E. 



M [('actus] brownii Toumev bot ''a/. :-i>:-2.53 



Sco Orcutt rev77-78 for desrri,>lion!^; it is t uo 

 the luiLue sca_crii eie drupped f<.)i u.is rare 



