NEOMAMMILLARIA. 93 
Mammillaria maschalacantha xantotricha Monville in Labouret, Monogr. Cact. 106. 1853. 
Cactus funckit Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus maschalacanthus Kuntze, Rev. Gen. Pl. 1: 260. 1891. 
Cactus leucotrichus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
> Cactus mutabilis Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus mystax Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Cactus xanthotrichus Kuntze, Rev. Gen. Pl. 1: 261. 1891. 
Globose to short-cylindric, 7 to 15 cm. high, flat-topped; tubercles in as many as 34 rows, thickly 
set, full of milk which freely flows when pricked or cut; radial spines 8 to 10, small, white; central 
spines 4, 3 about twice as long as the radial ones, the other much elongated, 6 to 7 cm. long; flowers 
1.5 to 2 cm. long, appearing in 2 or 3 rows, very abundant; inner perianth-segments dark red, 12 mm. 
long; stigma-lobes 4 or 5, greenish; fruit red, 2 to 2.5 cm. long. 
Type locality: Mexico. According to Hemsley, Karwinsky’s plant, which is the type, 
came from Ixmiquilpan and San Pedro Nolasco at about 6,000 feet altitude. 
Distribution: Highlands of southern central Mexico. 
This species is characterized by the long, erect, central spines which overtop the plant 
in the wild state; in cultivation these elongated spines do not always occur. The species is 
common in cultivation; in collections it is usually known as Mammiullaria mutabilis. 
go.—Neomammnillaria petterssonit. 
Fic. 89.—Neomammiillaria mystax. 
. . ’ is cited by Schumann 
Mammillaria krauseana, a name from Gruson’s Catalogue, y 
V lis. 
(Gesamtb. Kakteen 595. 1898) as a synonym of M. mutabi ; | 
Mammillaria meschalacantha Hortus (Salm- Dyck, Cact. Hort. Dyck. 1844. 10. 1845), 
is, i i M. maschalacantha. 
according to the Index Kewensis, 1s a misspelling for ne . . 
Mammillaria maschalacantha dolichacantha Monville was given as a doubtful synonym 
1, _ 106. 1853). 
of M. maschalacantha by Labouret (Monogr. Cact. 10 : ; . To . \ te 
Mamumillaria mutabilis autumnalis (Monatsschr. Kakteenk. 30: February 1920) 1s 
offered for sale by Grassner. 
, - _ 1850), 
Mammillaria mutabilis laevior Salm-Dyck (Cact. Hort. Dyck. 1849. 17, 120. I 50) 
with M. leucocarpa Scheidweiler as a synonym, was given as a variety 0 V mutants put 
it was not described. M. xanthotricha laevior Salm-Dyck (Cact. Hort. Myck. To44. TT. 
1845), also undescribed, seems to be the same. 
