118 THE CACTACEAE. 
Mamamillaria caesia Ehrenberg, Allg. Gartenz. 17: 251. 1849. 
Mamumillaria mirabilis Ehrenberg, Allg. Gartenz. 17: 251. 1849. 
43AMammillaria pruinosa Ehrenberg, Allg. Gartenz. 17: 261. 1849. 
_= Mamamillaria seegert Ehrenberg, Allg. Gartenz. 17: 261. 1849. 
2 Mammillaria haseloffit Ehrenberg, Allg. Gartenz. 17: 303. 1849. 
> Mammillaria herrmannii Ehrenberg, Allg. Gartenz. 17: 303. 1849. 
Mamumillaria aurorea Ehrenberg, Allg. Gartenz. 17: 303. 1849. 
— Mammillaria linkeana Ehrenberg, Allg. Gartenz. 17: 308. 1849. 
-~Mammillaria vulpina Ehrenberg, Allg. Gartenz. 17: 308. 1849. 
Mammillaria eximia Ehrenberg, Allg. Gartenz. 17: 309. 1849. 
~Mammillaria isabellina Ehrenberg, Allg. Gartenz. 17: 309. 1849. 
Mammillaria spinosissima brunnea Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 
Mammillaria spinosissima flavida Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 
Mammillaria spinosissima rubens Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 
Mammillaria herrmanni flavicans Salm-Dyck, Cact. Hort. Dyck. 1849. 8. 1850. 
Mamumnillaria 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. 1849. 83. 1850. 
Mammillaria spinosissima hepatica Labouret, Monogr. Cact. 35. 1853. 
Mamamillaria 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 auricomus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus auroreus Kuntze, Rev. Gen. Pl. 1: 260.- 1891. 
Cactus eximius Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus isabellinus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus linkeanus Kuntze, Rev. Gen. Pl. 1: 260. 1891. - 
Cactus mirabifis Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus: polycentrus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus pomaceus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus pretiosus Kuntze, Rev. Gen. Pl. 1: 261. ~1891. 
Cactus pulcherrimus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus spinosissimus Kuntze, Rev. Gen. Pl: 1: 261. 1891. 
Cactus vulpinus Kuntze, Rev. Gen. Pl.-1: 261. 1891. 
Mammillaria spinosissima sanguinea Haage in Brandegee, Cycl. Amer. Hort. Bailey 2: 976. 1900. 
Mammillaria spinosissima aurorea Giirke, Bliihende Kakteen 2: under'pl. 71. 1905. 
Mammillaria spinosissima auricoma Girke, Bliihende Kakteen 2: under pl. 71. 1905. 
Mammillaria spinostsstma eximia Giirke, Bliihende Kakteen 2: under pl. 71. 1905. 
Mamamillaria spinosissima haselofit Giirke, Bliihende Kakteen 2: under pl. 71. — 1905. 
Mammillaria spinosissima herrmannii Giirke, Bliihende Kakteen 2: under pl. 71. 1905. 
Mammillaria spinosissima isabellina Giirke, Bliihende Kakteen 2: under pl. 71. 1905. ° 
Mammillaria spinosissima linkeana Girke, Bliihende Kakteen 2: under pl. 71. 1905. 
Mammillaria spinosissima mirabilis Giirke, Blithende:Kakteen 2: under pl. 71. 1905. 
Mammillaria spinostssima pruinosa Giirke, Blithende Kakteen 2: under pl. 71. 1905. 
Mammillaria spinosissima pulcherrima Giirke, Bliihende Kakteen 2: under pl. 71. 1905. 
Mammillaria spinosissima seegeri Girke, Bliihendé Kakteen 2: under pl. 71. 1905. 
Mammillaria spinosissima vulpina Giirke, Bliihende Kakteen 2: under pl. 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 very short, 2 to 3 mm.long;spines brownish to red, usually 
weak, hardly pungent; radial spines about 20, 1 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: Mountains of central Mexico. 
The above description is drawn from collections obtained in the high mountains 
between the City of Mexico and Cuernavaca. ‘There seems to be little doubt but that 
they are the M. sanguinea Haage which Schumann refers to M. spinosissima. 
We are disposed to refer here Echinocactus spinosissimus (Forbes, Journ. 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. . Mammillaria 
