MAMMILLARIA 



MAMMILLARIA 



973 



BB. Spines one or more hooked and 



central, except in 31. pusilla 



and M. dioica insular Is. 



0. Bristles one or more found 



in the axils between the 



tubercles 40. pusilla 



41. Bocasana 

 -V2. Wildii 

 4:i. tetraucista 



44. dioica 



45. armillata 

 00. Bristles none in the axils, 



except perhaps in M. Gar- 



retii 4(;. Wrightii 



47. Goodrichii 



48. Grahami 

 4;t. venusta 



50. Mainae 



51. Carretii 

 ■VA. Juice milky none in the tubercles, 



but found or to be suspected in 

 the body. JYo hooked spines. 

 Radial spines less than 15; 

 centrals usually 1. 



B. Fls. yellow 52. eriacantlia 



BE. Fls. blood-red .5:i. sphacelata 



HBB. Fls. carmine 54. spinosissima 



55. rkodantlia 

 5(3. dolicho centra 



57. discolor 



58. Lesaunieri 



59. Haageana 

 (iO. elegans 



AAA. Juice milky exuding from 

 wounds in any part of the 

 plant: stems not elongated : 

 tubercles usually angular: no 

 hooked spines, except in M. un- 

 cinata. Section Lactescentes. 

 B. Fls. red or purple or car^nine, 

 — said to be yelloiv in Park- 

 ins onii. 

 0. Spines terete : ra dial s 

 white, setaceous, numer 

 ous, intertvoven and cov- 

 ering the plant: stems at 

 length cylindrical or c I av- 



ate: axils ivoolly 61. bicolor 



02. Parkinaonii 

 63. formosa 

 00. Spines few, stouter, often 

 angular, some of the cen- 

 trals very long and more 

 or less flexuous : tuber- 

 cles rather large, angled: 



axils woolly 64. annularis 



Cio. centricirrha 

 idi^u mutabilis 

 67. Heeseana 

 BB. Fls. whitish, yellowish or 

 flesh-color. 

 0. Radial spines 9~S2, seldom 

 less than 12: tubercles 

 slender, scarcely angled .68. simplex 



69. Brandegei 



70. Heyderi 

 CO. Radial spines rarely as 



many as 9: body viostly 



depressed 71 . meiacantha 



72. carnea 



73. uncinata 



74. Trohartii 



75. sempervivi 



76. Caput-Medusae 



77. micromeris 



INDEX. 



acanthophlegma, 60. aulacothele, 2. Brownii, 6. 



Alversoni, 2(3. aureiceps, 55. calcarata, 14. 



ancistracantha, 1. autumnalis, 66. Candida, 39. 



angularis, 64. barbata, 37. Caput-Medusee, 76. 



applanata, 70. bicolor, 61. carnea, 72. 



arietina, 65. Bocasana. 41. Carretii, 51. 



Arlzoniea, 20. borealis, 20. oentrieirrlia, 65. 



urmillata, 45. Brandegei, 69. chlorantlia. 20. 



cirrhifera, 66. 

 conoidea, 18. 



cornifera, 7. 

 eornuta, 23. 

 crassispina, 55. 

 daimonoeeras, 8. 

 dasyacantha, 21. 

 decipieus, 32. 

 deflexispina, 65. 

 densa, 30. 

 denudata, 34. 

 deserti, 20. 

 dioica. 44. 

 discolor, 57. 

 dolichfu.-eiitra, .'30. 

 ei'hinaria, iU). 

 ociiinala, 30. 

 Eehimis, 9. 

 elegaiiR, 60. 

 elephantidens, 24. 

 elougata. 30. 

 erefta, 3. 

 eriacantlia, 52. 

 fissurata: See An- 



haloniiim, 

 formosa, 63. 

 Forsteri, 65. 

 tragilis, 33. 

 ful.vlspiria, 55. 

 tu-^<-uta, 55. 

 O'lhbU, 09. 

 lialeottii, .50,56. 

 globosa. 25. 

 (.Toodrifhii, 44, 47. 

 Grahami, 48. 

 riregKii, 77. 

 Ouiilemlniana, 32. 

 Haageana, 59. 

 Halei, 29. 

 Heeseana, 67. 

 liemisphip.rica, 70, 

 Heyderi, 70. 



20. 



Blrschtiana, 20. 

 impexicoma, 13, 

 insularis, 44. 

 Kluyei. 60. 

 Krarneri, 65. 

 lasiacantha, 34. 

 Lehraamn, 2. 

 Leona, 31. 

 Lesaunieri. 58. 

 longimamma, 2.5, 

 macro meri-s. 17. 

 macrothele, 2. 

 Mainas, 50. 

 meiacantha, 71. 

 micromeris, 77. 

 minim.a, 30. 

 Missonriensis, Hi 

 multiceps, 40. 

 mutabili.?, CO. 

 Neo-Mexieana, 

 Niclielsa?, 15. 

 nivea, 61. 

 Nogalensis, 4. 

 Nuttallii, 16. 

 Odierlana, 55. 

 Pabneri, 44. 

 Parltinsonii, 62. 

 pectinata, 12. 

 Petersonii, 67, 

 Pt'eitTeri, 55. 

 phellosperwa, 43, 

 pliimosa, 35, 

 Pondii, 28. 

 Potoslria, 60. 

 pn'smalica: SeeAn- 



halonium. 

 pnsiDa, 40, 

 pyramidalis, 55. 

 radians, 11. 

 radiosa, 2U. 

 Kadlimui, 26. 

 rapliidacautha, 1. 



recurvata, 4. 

 recurvispina, 4. 

 rhodantha, 55. 

 robustior, 16. 

 robustispina, 6. 

 Roseana, 26. 

 liiotgei, 34. 

 sanguinea, 54. 

 Sclieerii, 5. 

 Schmidtii, 65. 

 scolymoides, 10. 

 sempervivi, 75. 

 senilis, 30. 

 seti-spina, 27. 

 similis, 16. 

 simplex, 68. 

 sphacelata, 53. 

 sphasrica, 25. 

 sphcBrotricha, 39. 

 spinosissima, .54. 

 stella-anrata, 30, 

 .sidlaris, 40. 

 Ntrllatvs^ 40. 

 strobillfurinis, 18,22 

 tiiihnngnlaris, 64. 

 sulcata, 14. 

 tenuis, 30. 

 tetracantha, 56, 65. 

 tetrancistra, 43. 

 Texana, 40. 

 Trohartii. 74. 

 tuberculosa, 22. 

 uberiformis, 25. 

 uncinata, 73. 

 venusta, 49. 

 vetnla, 38. 

 vivipara, 19. 

 }yildia,w, 42. 

 Wildii, 42. 

 Wissniniini., 16. 

 Wrightii, 46, 



1. rapliidacantha, Lem. Stems becoming 1 ft. or more 

 long, 2-3 in. in diain., often clavate: tubercles erect- 

 spreading, somewhat flattened, often with 1 or 2 glands 

 in the groove: spines yellow in the yonng state, soon 

 gray; radialR6-10; central 1, longer and stouter, straight 

 or hooked in the same plant : fls. about 1 in. broad. 

 San Luis Potosi, Mex. — The more constantly booked 

 form is M. ancistracantha, Lem. 



2. macrothele, Mart. {31. aulacothele, Lem. 31. Tjt'h- 

 monni, Otto). Stems stout, attaining nearly 2 ft. in 

 height by 4 in. in diam. : tubercles long, conical, at first 

 upright, in age becoming even deflexed: spines all j'el- 

 low; radials 6-8, spreading; centrals 1-2, longer and 

 stouter: fls. l>2-2 in. broad. Central Mex. 



3. er6cta, Lem. Branching from base and from de- 

 cumbent stems, attaining 12 in. or more in height by 3 

 in. in diam., bright green: tubercles conical, short, up- 

 right: spines all yellow; radials 8-13; centrals 4 or 

 less: fls. 2-2% in. in diam. Cent. Mex. — In the groove 

 close to the spines is often found, especially in the 

 flowering area, a conspicuous honey gland. 



4. recurv^ta, Engelm. (31. recurvispina, Engelm. 

 31. Nogalen.-iis, Runge). Stems depressed-globose and 

 often deeply concave, 6-8 in. in diam., forming large 

 masses 1-3 "ft. in diam. : tubercles short, with usually a 

 large gland in the groove near the apex: spines yellow 

 or whitish, stiff, recurved-pectinate, interwoven and 

 covering the whole plant ; radials 18-20 ; central 1, 

 rarely 2, recurved: fis. about 1 in. long, brownish out- 

 side. Near Nogales, Arizona, and southward in Sonora. 



5. Sche^rii, Mlihlpf. Stems ovate-globose, .3-6 in. in 

 diam., usually simple: tubercles large and distant, 

 deeply grooved, with 1-5 glands in the groove: spines 

 stout, rigid, sometimes reddish; radials 6-16; centrals 

 1-5, stouter and longer, 1 very stout and porrect : fls. 

 2 in. long: seeds large for the genus. S. W. Texas and 

 southward in Mexico. 



6. robustispina, Engelm. {3f. Browvii, Tourney). 

 Much like the preceding, but tubercles teretish, no 

 glands in the groove or sometimes a single one at apex: 

 spiues very s^tout ; radials 10-15 ; central 1, longer, 

 straight, curved or even hooked, rarely an additional 

 straight upper one: fls. 2 in. long, with very slender 

 tube: seeds large. Babuquibari mountains south of 

 Tucson, Ariz. 



