NEOMAMMILLARIA. 153 
Illustrations: Cact. Mex. Bound. pl. 8, f. 1 to 8; Monatsschr. Kakteenk. 14: 9; 
Mollers Deutsche Gart. Zeit. 25: 475. f.8, No. 5; West Amer. Sci. 13: 40; Forster, Handb. 
Cact. ed. 2. 249. f. 23 (as f. 31, in error); Schelle, Handb. Kakteenk. 255. f. 177; Remark, 
Kakteenfreund 16, 17, as M. wrightit. 
Figure 171 is a reproduction of the first illustration cited above. 
Fic. 171.—Neomammillaria wrightii. Fic. 172.—Neomammillaria mainae. 
127. Neomammillaria viridiflora sp. nov. 
Globular to short-oblong, 5 to 10 cm. long, the plant-body well hidden under the closely appressed 
radial spines; tubercles terete, small, naked in their axils; radial spines 20 to 30, widely spreading, 
white with brown tip, bristle-like, 10 to 12 mm. long; central spines much stouter than the radials, 
1.5 to 2 cm. long, brown, one or more of them hooked; flowers greenish, narrowly campanulate, 1.5 
cm. long; fruit globose to ovoid, 10 to 15 mm. long, purplish, very Juicy; seeds fminute, 1 mm. long. 
Collected by C. R. Orcutt on Superior-Miami Highway, near Boundary Monument, 
between Pinal and Gila counties, Arizona, 4,700 feet elevation, July, 1922 (No. 608, type), 
and by Mrs. Ruth C. Ross near Tula Spring, south of Aravaipa, Arizona, June 1922 
(No. 14). 
Here perhaps are to be referred plants collected in New Mexico by O. B. Metcalfe 
(Nos. 797, 803, and 820) and probably that part of ammillaria wrightit which came from 
Santa Rita. Mr. Orcutt has repeatedly written to us about this green-flowered species, 
which we are now able to separate very distinctly from both M ; wright and M. wilcoxit. 
Dr. Forrest Shreve has also reported a green-flowered species from Arizona which he 
states is common in oak-woods. 
>128. Neomammillaria wilcoxii (Toumey). 
‘ »~Mammillaria wilcoxii Toumey in Schumann, Gesamtb. Kakteen 545. 1898. 
Solitary, almost globose, flabby in texture, 10 cm. in diameter, almost covered by mass ol 
interlocking spines; axils of tubercles naked; radial spines 14 to 20, wide y sprea ing, olter 5 mm 
long, bristle-like, white with colored tips; central spines 1 to 3, brown, 2 cm. ong, I or more | ooked 
flowers pink to purple, large, 3 cm. long, 4 cm. broad when fully expanded; outer peria seg 
about 20, fringed with white hairs; inner perianth-segments about 40, in 2 rows. 
Type locality: Arizona. 
Diswibution: Southeastern Arizona. It should be looked for in northern Sonora. 
