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Mammillaria johnstonii


Common Name(s):
Synonym(s): Neomammillaria johnstonii
To view publication details for this taxon and related synonyms Click Here.
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Subfamily: Cactoideae
Tribe: Cacteae
Distribution: Sonora - Mexico (North America)
Habit: Globose
Flower: Pink, WhiteEncounterability: Common Locally in Some Areas
Original Description: The Cactaceae 4 p.80 - Britton & Rose (1920)
Plants large for the genus, globular to short-oblong, 15 to 20 cm high, slightly depressed at apex; tubercles 1 to 1.5 cm long, 4-angled throughout, somewhat blusih, naked in their axils, milky; spine-areoles when young short-floccose, in age glabrate, circular; radial spines 10 to 14, white, but with brown tips, somewhat spreading, stiff-acicular; central spines 2, much longer and stouter than the radials, slightly diverging, bluish brown; flowers from near top of plant but from axils of old tubercles, campanulate, 2 cm long; outer perianth-segments ovate-lanceolate, greenish white with a reddish-brown mid-rib; inner perianth-segments narrow, acuminate, white; filaments short, pinkish; style pinkish; stigma-lobes linear, 6 or 7, green.
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Mammillaria johnstonii
M. johnstonii
Picture taken at: Juergen Menzel's Private Collection

Photographer: Juergen Menzel
Mammillaria johnstonii
M. johnstonii
Picture taken at: Boyce Thompson Arboretum, Superior, AZ

Photographer: Daiv Freeman
Mammillaria johnstonii
M. johnstonii
Picture taken at: Juergen Menzel's Private Collection

Photographer: Juergen Menzel

Mammillaria johnstonii var. guaymensis


Common Name(s):
Synonym(s):
To view publication details for this taxon and related synonyms Click Here.
To view a chart comparing alternate taxonomy Click Here.
Subfamily: Cactoideae
Tribe: Cacteae
Distribution: Sonora - Mexico (North America)
Habit: Globose
Flower: Pink, WhiteEncounterability: Unusual in Collections
This icon appears next to images that have been 3rd party verified. Click Here to learn more.
Click any picture below to enlarge.
Mammillaria johnstonii
M. johnstonii var. guaymensis
Picture taken at: Private Collection

Photographer: Joel Lode

Photographer's Website: Click Here

*Currently 171 of 171 known species are represented on CactiGuide.com.


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