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NEOMAMMILLARIA. 175 
7’ MAMMILLARIA TOMENTOSA Ehrenberg, Allg. Gartenz. 17: 262. 1849. 
Cactus tomentosus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
MAMMILLARIA VARIMAMMA Ehrenberg, Allg. Gartenz. 17: 242. 1849. 
Cactus varimamma Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
2 MAMMILLARIA WEGENERI Ehrenberg, Bot. Zeit. 1: 738. 1843. 
Cactus wegeneri Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
MAMMILLARIA ZEGSCHWITzu Terscheck, Suppl. Cact. Verz. 1. 
Cactus zegschwitzit Kuntze, Rev. Gen. Pl. : 261. 1891... 
MAMMILLARIA ZEPNICKII Ehrenberg, Bot. Zeit. 2: 835. 1844. 
Cactus zepnickii Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
NAMES TO BE EXCLUDED FROM THIS GENUS. 
The names Mammillaria solitaria, M. spinosa, M. caudata, M. ambigua, and M. 
quadrata, credited to G. Don, with the synonyms Cactus solitarius, C. spinosus, C. caudatus, 
C. ambiguus [Not Bonpland, 1813], and C. quadratus, credited to Gillies, respectively, each 
with a single word description, viz., solitary, spiny, tailed, ambiguous, quadrate, appeared 
in 1830 (Loudon, Hort. Brit. 194). As they all are said to come from Chile they can not 
be of this alliance. 
Mammiilaria brachydelphys Schumann (Just, Bot. Jahresb. 26: 343. 1898) seems to 
have been intended for Maihuenia brachydelphys. 
Cereus caudatus Gillies (Sweet, Hort. Brit. ed. 3. 285. 1839) is probably the same as 
M. caudata. 
Mammillaria corioides Bosch (Sweet, Hort. Brit. ed. 3. 281. 1839) was described as 
leather-like and native of South America. It can not be identified, but it is not of this 
relationship if it comes from South America. Schumann referred it to Echinocactus, but 
it does not belong to that genus as we now define it. 
Mammillaria dichotoma (Sweet, Hort. Brit. ed. 3. 281. 1839), described only as 
forked, can not be identified. 
Mammillaria mitis (De Candolle, Prodr. 3: 460. 1828), without description, is credited 
to Miller (Dict. Gard.), but Miller never used the generic name Mammitllaria. Pfeiffer 
and Forster also refer this name to Miller. Steudel states that it is from South America. 
Kuntze also refers to the same as Cactus mitis (Rev. Gen. PI. 1: 259. 1891). Schumann 
thought that it might be an Echinocactus and, if it really came from South America, as 
stated by the Index Kewensis, it is probably of the Echinocactanae. ; 
Mammillaria speciosa Gillies (Sweet, Hort. Brit. ed. 2. 235. 1830), to which Cactus 
speciosus Gillies is referred as a synonym, is based upon some Chilean plant. 
Mammillaria subulata Mihlenpfordt is listed both by Schumann and the Index 
Kewensis but the name intended was Pereskia subulata! 
MAMMILLARIA CHILDSI Blanc, Illustr. Cat. 14. 1894. 
“This fine Mammillaria was sent out by us as M. pectinata before we bloomed it, from the fact 
that small plants answered the description exactly. After blooming, however, we discovered that 
it was a valuable new variety and named it as above. When small, the spines are regular, short an 
white; as the plant becomes older the spines also increase in size and assume a beautiful purple 
. 7? 
color. Flowers very numerous, even on small plants; color a clear pink. 
We have not been able to identify this plant definitely. From the illustration, which 
shows large flowers from the center of the plant, we judge that it can not be referred to 
Neomammillaria nor to any of its near relatives. It may be a C. oryphantha; in fact, at 
first it was taken for C. pectinata. The spines, however, are shown as arranged on vertical 
tibs, while the central spine is shown as erect; these two characters along with the central 
purple flowers suggest Echinomastus erectocentrus. 
Lllustration: Blane, Ilustr. Cat. 14. 
