NEOMAMMILLARIA, 135 
Walpers (Repert. Bot. 2: 272. 1843) records M. intertexta rufocrocea, but without any 
description. 
Labouret (Monogr. Cact. 67. 1853) records the variety M. stella-aurata minima 
Salm-Dyck. 
The two varieties of Mammillaria subcrocea, anguinea, and rutila (Walpers, Repert. 
Bot. 2: 272. 1843) are without descriptions. 
Mammillaria elongata rufescens Salm-Dyck (Cact. Hort. Dyck. 1844. 12. 1845) was 
not described at the place here cited, while the variety straminea was a garden name 
(Forster, Handb. Cact. 240. 1846). 
Illustrations: Schumann, Gesamtb. Kakteen 519. f. 85; Bliihende Kakteen 3: pl. 
174, as Mammillaria elongata; Schelle, Handb. Kakteenk. 247.f. 165, as M. elongata minima; 
Blanc, Cacti 72. No. 1398, as M. minima; Link and Otto, Icon. Pl. Rar. pl. 35, as M. 
densa; Abh. Bayer. Akad. Wiss. Miinchen 2: pl. 1. vur. f. 5, as M. stella-aurata; Curtis’s 
Bot. Mag. 65: pl. 3646; Edwards’s Bot. Reg. 18: pl. 1523; De Candolle, Mém. Cact. pl. 1; 
Loudon, Encycl. Pl. ed. 2 and 3. 1201. f. 17359, as M. tenuis. 
Figure 146 is from a photograph of the common form in cultivation. 
Fic. 147.—Neomamnmnillaria oliviae. 
97. Neomammillaria oliviae (Orcutt). 
Mammillaria oliviae Orcutt, West Amer. Sci. 12: 163. 1902. 
indri i i i i times as many 
Globose to short-cylindric, up to 10 cm. high, simple or becoming cespitose, some 2a 
as 8 together; tubercles ovoid, their axils naked; radial spines 25 to 36, snowy white or sometimes 
reddish brown, slender, rigid, 6 mm. long, the upper ones shorter; central spines 1 to 3, the ower 
one erect, rigid, white or tipped with chocolate brown; flowers about 3 cm. broad; periantirse gments 
lanceolate, acute, magenta, the upper part of the margins and tip with a narrow band oO ite; 
filaments deep magenta; style light pink; stigma-lobes olive-green; fruit scarlet, clavate, up to 2.5 
cm. long; seeds small, black. 
Type locality: West of Vail, a flag station on the Southern Pacific Railroad, near 
Tucson, Arizona. . 
Distribution: Mountains and deserts of Arizona. hof EE 
Our description of the flowers is drawn from the notes and photograph of F. E. 
Lloyd’s specimen sent us from Oro Blanco Mountains, Arizona. This is the only record we 
have had of this plant blooming, but fruiting plants were collected by C. R. vreutt in 1922 
(No. 802). It was first collected in considerable quantity by Mr. Orcutt, ut his upp y 
soon died out and most of the skeletons were sent to the U. S. National Herbarium, where 
