104 THE CACTACEAE. 
54. Neomammillaria napina (Purpus). 
Mammillaria napina Purpus, Monatsschr. Kakteenk. 22: 161. 1912. 
Roots thick, but when in a cluster of 3 or 4 somewhat spindle-shaped; plants globose, 4 to 6 cm. 
in diameter; tubercles low, terete in section, not at all milky; spines all radial, 10 to 12, pectinate, 
white or yellowish, spreading and interlacing; flowers unknown. 
Type locality: Mountains west of Tehuacan, Mexico. 
Distribution: Southern Mexico. 
The plant was collected by C. A. Purpus in 1911. In 1901 Dr. Rose collected near 
Tehuacdn three small plants which we now believe are to be referred here; these differ 
from the type plant chiefly in having usually one porrect central spine 5 to 8 mm. long. 
Some of the spine-clusters have no central spines and then they look very much like 
those of Neomammillaria napina. Dr. Rose’s plants were globose when collected but 
now are cylindric, and after 20 years are less than 6 cm. high; they have never flowered. 
Illustration: Monatsschr. Kakteenk. 23: 123, as Mammillaria napina. 
Fic. 102.—Neomammillaria tenampensis. Fic 
- 103.—Neomammillaria collinsii. 
55. Neomammillaria lanata sp. nov. 
Small, short-cylindric; tubercles short, 2 to 4mm. long; 
14, all radial, widely spreading, 
young flowers surrounded by a 
inner perianth-segments about 1 
obtuse. 
Collected by 
in Washington. 
Figure 105 is from a photograph of the type specimen. 
‘56. Neomammillaria kewensis (Salm-Dyck). 
Mammillaria kewensis Salm-Dyck, Cact. Hort. Dyck. 1849. 112. 
Globose to cylindric, 3 to 
5 spine-areoles short-elliptic; spines 12 to 
white except the brown bases; flowering areoles very woolly, the 
mass of long white hairs; flowers very small, 6 to 7 mm. long, red; 
5, oblong, obtuse or acutish, spreading above; stigma-lobes 3, short, 
C. A. Purpus near Rio de Santa Luisa, Mexico, in 1907 and since grown 
1850. 
4 cm. in diameter; tubercles short, terete, when young short-woolly in 
te axis and at the areoles; Spines 5 or 6, all radial, 4 or 5 mm. long, brown with dark tips; axils of 
2 earing crisp hairs; flowers about 15 mm. 1 i ; perianth- ° ” 
late, acute; stigma-lobes 5, reddish. ® ONG: Feddish purple; perianth- segments Janceo 
Type locality: Not cited. 
Distribution: Doubtless Mexico. 
We have had a living plant from Haage and Schmidt and one from Quehl which we have 
used in our description. 
