Neomammillaria swinglei B. & R . , The Cact. 4 : 158. 1923.
Stems cylindric, 1 to 2 dm. long, 3 to 5 cm. in diameter;
Axils of tubercles more or less setose;
Radial spines rather stout for this group, spreading, dull white with dark tips;
Central spines 4, ascending, dark brown or black, the lowest one elongated (1 to 1.5 cm. long), hooked at apex or sometimes straight;
Outer perianth-segments greenish or sometimes pinkish; margins somewhat scarious;
Inner perianth-segments narrowly oblong, nearly white with a brown stripe down center; style pink, twice as long as
the pink filaments;
Stigma-lobes 8, linear, pointed, green;
Fruit dark red, clavate, 14 to 18 mm. long; seeds 1 mm. in diameter, constricted below, black with a large elliptic basal hilum'
MEXICO: Sonora, vicinity of Guaymas, island in harbour, 10 Mar. 1910,
Rose, Standley & Russell 12568 in US 635832, holotype!; Guaymas, on scorial-covered island in bay,
everywhere very common, 14 Apr. 1921, I,M. Johnston 3086 in CAS 81375'., and in US (paratype) .
Fruit and seeds described from a plant collected by Swingle; also collected in 1920 by W.S.W. Kew.
From the Journal of the Mammillaria Society Vol. XIV n.4 August 1974
Mammillaria swinglei HK 277
Collector Horst Kuenzler - HK 277 Bacum - Sonora - Mexico
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