Il8 THE CACTACEAE. 



Mamniillaria caesia Ehrenberg, AUg. Gartenz. 17: 251. 1S49. 



Mammillaria mirabilis Elirenberg, Allg. Gartenz. 17: 251. 1849. 



Mammillaria pruinosa Ehrenberg, Allg. Gartenz. 17: 261. 1849. 



Mammillaria seegeri 'Ehr^nheTg, Allg. Gartenz. 17: 261. 1849. 



Mammillaria haseloffii Ehrenberg, Allg. Gartenz. 17: 303. 1849. 



Mammillaria herrmannii Ehrenberg. Allg. Gartenz. 17: 303. 1849. 



Mammillaria aiirorea Ehrenberg, Allg. Gartenz. 17: 303. 1849. 



Mammillaria linkeatia Ehrenberg. Allg. Gartenz. 17: 308. 1849. 



Mammillaria vulpina Ehrenberg, Allg. Gartenz. 17: 308. 1849. 



Mammillaria eximia Ehrenberg, Allg. Gartenz. 17: 309. 1849. 



Mammillaria isabelliiia Ehrenberg, Allg. Gartenz. 17: 309. 1849. 



Ma?nmillaria spiiiosissima brunnea Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria spinosissima Havida Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria spinosissima riibens Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria herrmanni fljivicans Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria seegeri gracilispina Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria seegeri pruinosa Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 



Mammillaria uhdeana Salm-Dyck, Cact. Hort. Dyck. 1S49. 83. 1850. 



Mammillaria spinosissima hepaiica Labouret, Monogr. Cact. 35. 1853. 



Mammillaria castaneoides 'Lemaire in Labouret, Monogr. Cact. 37. 1853. 



Mammillaria seegeri mirabilis Labouret, Monogr. Cact. 37. 1853. 



Mammillaria sanguinea Haage jr. in Regel, Act. Hort. Petrop. 8: 276. 1883. 



Mammillaria poselgeriana Haage in Forster, Handb. Cact. ed. 2. 269. 1885. 



Mammillaria pretiosa cristata Hildmann in Forster, Handb. Cact. ed. 2. 273. 1885. 



Cactus aitricomus Kuntze, Rev. Gen. PI. i: 260. 1891. 



Cactus auroreus Kuntze, Rev. Gen. PI. i: 260. 1S91. 



Cactus eximiiis Kuntze, Rev. Gen. PI. 1: 260. 1891. 



Cactus isabellinus Kuntze, Rev. Gen. PI. i: 260. 1891. 



Cactus liukeanus Kuntze, Rev. Gen. PI. i: 260. 1891. 



Cactus mirabilis Kuntze, Rev. Gen. PI. i: 260. 1891. 



Cactus polycentrus Kuntze, Rev. Gen. PI. i: 261. 1891. 



Cactus pomaceus Kuntze, Rev. Gen. PI. i: 261. 1891. 



Cactus pretiosus Kuntze, Rev. Gen. PL i: 261. 1891. 



Cactus pulcherrim us Kuntze, Rev. Gen. PL 1: 261. 1891. 



Cactus spinosissimus Kuntze, Rev. Gen. PL i: 261. 1891. 



Cactus vidpinus Kuntze, Rev. Gen. PL i: 261. 1891. 



Mammillaria spinosissima sanguinea Haage in Brandegee, Cycl. Amer. Hort. Bailey 2: 976. 1900. 



Mammillaria spinosissima aurorea Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillciria spinosissima auricoma Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima eximia Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima haseloffii Giirke. Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima herrmannii Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammilluria spinosissima isabellina Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima linkeana Giirke. Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima mirabilis Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima pruinosa Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima pulcherrima Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spinosissima seegeri Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Mammillaria spitwsissima vulpina Giirke, Bliihende Kakteen 2: under pi. 71. 1905. 



Cylindric, 7 to 30 cm. long, 2.5 to 10 cm. in diameter, almost hidden under a dense covering of 

 spines; axils of tubercles setose; tubercles ver\- short, 2 to 3 mm. long; spines brownish to red, usually 

 weak, hardly pungent; radial spines about 20, i cm. long or less; central spines 7 or 8, 2 cm. long or 

 more ; flowers from the upper part of the plant, purplish, 12 mm. long; inner perianth-segments acute; 

 filaments much shorter than the perianth-segments, purple. 



Type locality: Not cited. 



Distribution: iMoimtains of central Mexico. 



The above description is drawn from collections obtained in the high mountains 

 between the City of ^Mexico and Cuemavaca. There seems to be little doubt but that 

 they are the J\/. sanguinea Haage which Schumann refers to M. spinosissima. 



We are disposed to refer here Echinocactus spinosissimus (Forbes, Joum. Hort. Tour 

 Germ. 152. 1837). Forbes did not have much knowledge of the cacti but was the gardener 

 of the Duke of Bedford, who sent him to the Continent of Europe in 1835, where he obtained 

 many cacti and on his return to England published a list of them, sometimes with brief 

 descriptions. The names had been given to him by Pfeiffer and others who were studying 

 this family. As he published his list very promptly after his return to England many 

 names appear there first or in the same year as in Pfeiffer's Enumeratio. ^lammillaria 



