112 THE CACTACEAE. 
Figure 114 is from a photograph of the plant received from Haage and Schmidt in 
1920, referred to above. 
67. Neomammillaria mundtii (Schumann). 
Mammillaria mundtui Schumann, Monatsschr. Kakteenk. 13: 141. 1903. 
Solitary, so far as known, globose, 6 to 7 cm. in diameter ; tubercles not milky, nearly terete, 
dark green, rather short and stubby, their axils naked ; spine-areoles circular, somewhat lanate when 
young; radial spines 8 to 19, swollen at base, spreading or somewhat curved backward, 6 to 8 mm. 
long, brownish when young, the tips usually darker; central spines 2, a little stouter and longer than 
the radials, porrect; flower from toward the center of the plant, 2 cm. long. 
Type locality: Not cited. 
Distribution: Mexico, but known only from cultivated plants. 
We know this plant from a specimen sent to Washington in 1921 by W. Mundt, in 
whose honor the species had been named. 
Illustration: Monatsschr. Kakteenk. 13: 142, as Mammillaria mundtiti. 
Figure 113 is a reproduction of a photograph sent us by L. Quehl in 1921. 
Fic. 116.—Neomammillaria celsiana. 
68. Neomammillaria celsiana (Lemaire). 
Mammillaria celsiana Lemaire, Cact. Gen. Nov. Sp. 41. 1839. 
© Mammillaria muehlenpfordtii Forster, Allg. Gartenz. 1 5:49. 1847. 
Mammillaria schaefert Fennel, Allg. Gartenz. 15:66. 1847. 
Mammillaria schaeferi longispina Haage, Hamb. Gartenz. 17: 160. 12861. 
Cactus muehlenpfordtii Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus celsianus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus schaeferi Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
(?) Mammillaria perringii Hildmann, Gartenwelt 10: 250. 1906. 
Plant-body subglobose, becoming cylindric, 10 to 12.5 cm. high, 7.5 cm. in diameter, deep 
green; axils of tubercles woolly; tubercles conic, compact; spine-areoles small, round, woolly when 
young ; radial spines 24 to 26, about equal, white, setaceous; central spines 4 to 6, rarely 7, somewhat 
longer than the radials, terete, rigid, pale yellow, more or less recurved and unequal, 8 to 16 mm. 
long; flowers red; fruit described as green. 
Type locality: Not cited. 
Distribution: Southern Mexico. , 
In 1920 Professor Conzatti sent us two specimens from the District of Cuicatlan, 
Oaxaca, which we refer here; these are the only plants of this species we have seen. 
