128 THE CACTACEAE. 
>86. Neomammillaria schiedeana (Ehrenberg). 
Mammillaria schiedeana Ehrenberg in Schlechtendal, Allg. Gartenz. 6: 249. 1838. 
? Mammillaria sericata Lemaire, Cact. Gen. Nov. Sp. 44. 1839. 
Cactus schiedianus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Mammillaria dumetorum J. A. Purpus, Monatsschr. Kakteenk. 22: 149. 1912. 
? Mammillaria cephalophora Quehl, Monatsschr. Kakteenk. 24: 158. 1914. Not Salm-Dyck, 1850. 
Densely cespitose, somewhat soft in texture; axils of tubercles bearing long bristle-like white 
hairs; tubercles green, terete; radial spines about 30, white, spreading, bristle-like, puberulent; 
central spines 6 to 10, spreading and appressed against the radials, a little stouter, often tinged with 
yellow; flowers 15 mm. long; inner perianth-segments white; fllaments white; style cream-colored; 
stigma-lobes 4, short, obtuse. 
Type locality: Near Puente de Dios, Mexico. 
Distribution: Central Mexico. 
The Index Kewensis refers Mammillaria sericata Lemaire to M. magnimamma. 
Fic. 137.—Neomammillaria lenta. 
Fic. 138.—Neomammillaria eriacantha. 
Il lustrations : Schumann, Gesamtb. Kakteen f. 11 3: Bliihende Kakteen 1: pl. 13 ; Monats- 
schr. Kakteenk. 8: 12; 13: 92, f. A, as Mammillaria schiedeana; Monatsschr. Kakteenk. 
23: 89, as Mammillaria dumetorum; (?) Monatsschr. Kakteenk. 24: 158, as Mammillaria 
cephalophora. 
Figure 136 is from a photo 
graph of a plant coll t San 
Rafael, Mexico, in 1910. Pp collected by Dr. C. A. Purpus a 
2 87. Neomammillaria lasiacantha (Engelmann). 
Mammillaria lasiacantha Engelmann, Proc. Amer. Acad. 3: 261. 1856. 
Mammillaria lasiacantha minor Engelmann, Cact. Mex Bound 85 
Cactus lastacanthus Kuntze, Rev. Gen. Pl. 1: 259 1891 Oe NS 
ome sghose, 700 2.5 cm. in diameter; tubercles small, their axils naked; spines 4o to 60, in more than 
eres, white, puberulent, 2 to 4 mm. long; flowers 12 mm. long, whitish or pink; fruit 1 to 2 cm. 
long; seeds blackish, pitted. ”™ 
Type locality: On the Pecos in western Texas. 
