NEOMAMMILLARIA. 169 
Pl. 1: 261. 1891). The original description was based on a drawing and calls for a cylindric, 
unbranched plant, bearing unarmed tubercles and rose-colored flowers. 
MAMMILLARIA PICTA Meinshausen, Wochenschr. Gartn. Pflanz. 1:27. 1858. 
Cactus pictus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Globose to ovoid, dull green; tubercles cylindric, somewhat oblique, obtuse, their axils setose; 
spines pubescent; radial spines 12, yellowish at base, white near middle, above dark purple; 
central spines 1 (rarely 2), erect; flowers greenish white; stigma-lobes 3. 
This species is known from the description only. It was recorded as from Mexico. 
MAMMILLARIA PLECOSTIGMA Meinshausen, Wochenschr. Gartn. Pflanz. 1: 27. 1858. 
Mammiilaria plecostigma major Meinshausen, Wochenschr. Gartn. Pflanz. 1:27. 1858. 
Mammillaria plecostigma minor Meinshausen, Wochenschr. Gartn. Pflanz.1: 27. 1858. 
Cactus plecostigma Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Proliferous, the joints cylindric; tubercles cylindric, the apex oblique and rounded, with setae 
in their axils; radial spines 16 to 20, setaceous, white; central spines 3 or 4, at first yellow, becoming 
brown, one hooked at apex; flowers and fruit unknown. 
Presumably of this genus and recorded as of Mexican origin; but not identified since 
it was described. 
MAMMILLARIA PLINTHIMORPHA Jacobi, Allg. Gartenz. 24:92. 1856. 
Cespitose, forming clumps 15 cm. in diameter or more; joints globose; tubercles 4-angled, 
obtuse, bearing yellowish white wool in their axils; spines 4, subulate, somewhat angled, flesh-colored 
with blackish tips, the upper one the longest and sometimes more than 2.5 cm. long; flowers not 
known. » 
This plant was collected by Galeotti in Mexico in 1847; we do not know it and it was 
listed by Schumann among his little-known species. 
MAMMILLARIA PULCHRA Haworth in Edwards’s Bot. Reg. 16: pl. 1329. 1830. 
Cactus pulcher Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
This species, which has yellow spines and dark-red flowers, was referred by Schumann, 
doubtfully, to Mammillaria centricirrha, and by Pfeiffer with doubt to V. tentaculata. 
MAMMILLARIA RUTILA Zuccarini in Pfeiffer, Enum. Cact. 29. 1837. 
Cactus rutilus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Simple, globose; axils of tubercles nearly naked; tubercles 1 cm. long, conic, dull green; 
areoles when young tomentose; radial spines 14 to 16, setiform, the upper ones smaller, 4 to 8 mm. 
long; central spines 4 to 6, spreading, rigid, 8 to 12 mm. long, curved, reddish brown, the lower one 
longest. 
Type locality: Mexico. 
This name is referred by Schumann to M. coronaria. 
M. rutila pallidior Salm-Dyck (Cact. Hort. Dyck. 1849. 11. 1850) was never described, 
while M. eugenia (Salm-Dyck, Cact. Hort. Dyck. 1849. II. 1850) is given as a synonym 
of M. rutila. oo, ‘bed 
M. rutila octospina Scheidweiler (Bull. Acad. Sci. Brux.6: 91. 1839) is briefly described. 
MAMMILLARIA SAXATILIS Scheer, Bot. Herald 286. 1856. 
Cactus saxatilis Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Plant small; spines brownish to straw-colored. 
ewhere in Mexico, by Potts and sent to Scheer; 
The species may never be identified. 
MAMMILLARIA SCHMERWITzII Haage in Forster, Handb. Cact. ed. 2. 270. 1885. 
Depressed-globose, 10 cm. in diameter, grassy green, radial spines 10 to 25, yellow, 4 to 5 mm. 
long; central spines 4 or 5, dark brown, 15 mm. long; flowers red. 
Only two plants were collected, som 
the flowers and fruit were not described. 
