128 



THE CACTACEAE. 



86. Neomammillaria schiedeana (Ehrenberg). 



MammUlaria schiedeana Ehrenberg in Schlechtendal, AUg. Gartenz. 6: 249. 1838. 

 ? MammUlaria sericata Lemaire, Cact. Gen. Nov. Sp. 44. 1839. 



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



Mammillaria dumetorum J. A. Purpus, Monatsschr. Kakteenk. 22: 149. 1912. 

 ? MammUlaria 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; filaments 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. 



Fig. 137. — Neomaminillaria lenta. 



Fig. 138. — Neomammillaria 



Illustrations: Schumann, Gesamtb. Kakteen f . 113: Bliihende Kakteen i : pi. 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 photograph of a plant collected by Dr. C. A. Purpus at San 

 Rafael, Mexico, in 1910. 



87. Neomammillaria lasiacantha (Engelmann). 



Mammillnrid lasiacaiiiha Engelmann, Proc. Amer. Acad. 3: 261. 1856. 

 Mammillaria lasiacantha minor Engelmann, Cact. Mex. Bound. 5. 1859. 

 Cactus lasiacanlhiis Kuntze, Rev. Gen. PI. i: 259. 1891. 



Globose, 2 to 2.5 cm. in diameter; tubercles small, their axils naked; spines 40 to 60, in more than 

 one series, white, puberulent, 2 to 4 mm. long; flowers 12 mm. long, whitish or pink; fruit i to 2 cm. 

 long; seeds blackish, pitted. 



Type locality: On the Pecos in western Texas. 



