120 THE CACTACEAE. 
Cactus densispinus and we are convinced that they are the same; Coulter’s type is now in 
the Field Museum of Natural History. 
Illustration: Monatsschr. Kakteenk. 24: 115, as Mammiullaria pseudofuscata. 
Figure 126 shows the plant sent by Mrs. Vera from San Luis Potosi. 
78. Neomammillaria nunezii sp. nov. 
Globose to cylindric, 1.5 cm. long, 6 to 8 cm. in diameter; tubercles closely set, short, terete in 
section, setose in their axils; radial spines white, stiff, about 30, widely spreading; central spines 2 
to 4, stout, 10 to 15 mm. long, brown to nearly blackish at tips; fruit 2.5 cm. long, clavate, white or 
tinged with pink; seeds small, brown. 
T : . oe 
Fic. 128.—Neomammuiillaria nunezii. Fic. 129.—Neomammillaria rhodantha. 
; Collected by Professor C. Nijfiez at Buenavista de Cuellar, Guerrero, Mexico, in 1921 
(N OS. I, 2 and 3); and communicated to us by Octavio Solis. This species is rather variable 
in habit and spines and is very unlike anything that we have heretofore studied. 
Figures 127 and 128 are from photographs of the top and side of two plants of this 
collection. 
79. Neomammillaria amoena (Hoppfer). 
Mammillaria amoena Hoppfer in Salm-Dyck, Cact. Hort. Dyck. 1849. 99. 1850. 
radiating white ee umnar ) tubercles green, ovoid, obtuse, subglaucous; radial spines 16, slender, 
recurved. flowers ntral spines 2, rigid, yellowish brown, 8 to 10 mm. long, the upper one longer and 
outer perianth appearing from axils above middle of plant, 2 cm. long; tube cone-shaped, green; 
perianth-segments somewhat brownish; inner perianth-segments with a pale-brown central 
stripe; margins near ly white obtuse entire; h A e 
. ’ , e; stamens short: : : ale 
green; stigm -lobes ¢r li r. Ss t; filaments pale; anthers red; styl Pp 
Type locality: Not cited. 
Distribution: Central Mexico. 
