NEOMAMMILLARIA. 133 
Mammiullaria depressa was credited by mistake to De Candolle by Pfeiffer in listing the 
synonyms of M. discolor (Enum. Cact. 28. 1837). 
Mammiullaria confinis Haage, according to Pfeiffer (Enum. Cact. 28. 1837), appeared 
in “‘Haage, Catal. Cact. 1836” and he lists it as a synonym of M. albida. 
Mammiullaria canescens Hortus (Pfeiffer, Enum. Cact. 28. 1837) was given as a synonym 
of M. discolor. This is different from M. canescens Jacobi (Allg. Gartenz. 24: 89. 1856) 
which Schumann lists among his unknown plants. (See also Lemaire, Cact. Gen. Nov. 
Sp. 99. 1839.) 
Mammillaria coniflora Hortus and M. discolor coniflora Salm-Dyck (Cact. Hort. 
Dyck. 1849. 11. 1850) are only names which belong here. 
Mammiullaria discolor fulvescens Salm-Dyck (Cact. Hort. Dyck. 1844. 7. 1845) was not 
formally published at the place here cited. 
Mammillaria discolor breviflora (Forster, Handb. Cact. 206. 1846), although not 
described at the place here cited, is usually referred here. 
Cactus pseudomammillaris appeared simply as a name in 1815 (Desfontaines, Tab. 
Bot. ed. 2. 191), and again in Pfeiffer’s Enumeratio (28. 1837) as a synonym of Mammil- 
laria discolor prolifera. Pfeiffer credits the name to Salm-Dyck and gives the reference to 
Allgemeine Gartenzeitung (3: 57. 1835), but the name appeared there under Mammillaria 
along with spinii and canescens. M. spin, credited to Colla, is given by Salm-Dyck 
(Cact. Hort. Dyck. 1849. 11. 1850) as a synonym of M. discolor. 
Schumann lists Mammillaria rhodacantha Salm-Dyck (Cact. Hort. Dyck 1849. 96. 
1850) among his unknown species. M. rhodacantha pallidior (Salm-Dyck, Cact. Hort. 
Dyck. 1844. 8. 1845) is only a name, while M. discolor rhodacantha (Walpers, Repert. Bot. 
2: 271. 1843), although never described, seems to be the same as M. rhodacantha. 
Illustrations: Mém. Mus. Hist. Nat. Paris 17: pl. 2, f. 2: Ann. Inst. Roy. Hort. 
Fromont 2: pl. 1, f. A; Loddiges, Bot. Cab. 17: pl. 1671 (?), as Mammillaria discolor; Mem. 
Accad. Sci. Torino 33: pl. 11, as Cactus spint. 
Figure 144 is reproduced from the first illustration cited above. 
Fic. 146.—Neomammillaria elongata. 
Fic. 145.—Neomammillaria fragilis. 
95. Neomammillaria fragilis (Salm-Dyck). 
Mammillaria fragilis Salm-Dyck, Cact. Hort. Dyck. 1849. 103. 
ng freely towards the top, branches globose and 
i i i ced; radial 
breaking off at the slightest touch; tubercles bright green, terete, their axils nearly naked; rac 
spines i to 14, white, naked, spreading ; central spines usually wanting, especially on branches, if 
present 1 or 2, elongated, erect, brownish especially at tip; young spine-arce ° wi wT a e wool: 
flowers from upper part of plant but not from center, small, lasting for sev cra ays ore m- color 
with outer segments somewhat pinkish; petals broad with a mucronate tip; filamen yle pale. 
1850. 
Stems usually oblong or club-shaped, sprouti 
