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Mammillaria microcarpa f. auricarpa (W.T.Marshall) Neutel.
Succulenta (Netherlands) 65(1): 3 (1986), without basionym ref.
Family: CACTACEAE

= Mammillaria microcarpa var. auricarpa W.T.Marshall
Desert. Bot. Gard. Arizona, Sci. Bull. 1: 106. 1950 (nom. inval. ICBN Art. 43.1)

Accepted Scientific Name: Mammillaria grahamii Engelm.
Syn. Cact. U. S. 6. 1856 Proc. Amer. Acad. Arts 3: 262. 1857 Engelm.

Mammillaria microcarpa f. auricarpa (Mammillaria microcarpa var. auricarpa) Photo by: Alexander Arzberger

Synonyms:

See all synonyms of Mammillaria grahamii
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Accepted name in llifle Database:
Mammillaria grahamii Engelm.
Syn. Cact. U. S. 6. 1856 Proc. Amer. Acad. Arts 3: 262. 1857
Synonymy: 26 Accepted name in llifle Database:
Mammillaria grahamii subs. sheldonii (Britton & Rose) D.R.Hunt
Cactaceae Syst. Init. 20: 21. 2005 [Nov 2005]
Synonymy: 33
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Subspecies, varieties, forms and cultivars of plants belonging to the Mammillaria grahamii/sheldonii group

  • Mammillaria alamensis R.T.Craig: (Mammillaria grahamii subs. sheldonii) without or with only 1 central spine, about 9 radial spines, white, tipped brown, needle-like, about 6 to 8 mm long. Distribution: Sierra de Alamos, Alamos, Sonora, Mexico.
  • Mammillaria grahamii Engelm.: has 20-35 white to greyish to light brown to reddish radial spines. 1-4 central spines yellowish to dark brown central, one usually hooked. It is very variable. Distribution: California, Arizona, New Mexico and Texas, USA; Sonora, Sinaloa and Chihuahua, Mexico.
  • Mammillaria grahamii subs. sheldonii (Britton & Rose) D.R.Hunt: has 9-24 radial spines. Central spines either straight or hooked, 1-1,5 cm long. Flowers purplish-pink with a pinkish brown midstripe. It is variable. Distribution: Mexico (Sonora and Chihuahua).
  • Mammillaria gueldemanniana Backeb.: aside from bigger flowers, not many differences. Distribution: Mexico, Chihuahua, Sonora and Sinaloa.
  • Mammillaria gueldemanniana var. guirocobensis (R.T.Craig) Backeb.: (Mammillaria grahamii subs. sheldonii) has 1-3 reddish-brown central spines almost 1 cm long. One spine is hooked. Flowers bigger and widely open. Distribution: Sonora, Sinaloa, Chihuahua at higher altitudes.
  • Mammillaria inaiae R.T.Craig: (Mammillaria grahamii subs. sheldonii)
  • Mammillaria marnieriana Backeb.: (Mammillaria grahamii subs. sheldonii)
  • Mammillaria microcarpa Engelm. in Emory: (Mammillaria grahamii) has 15-35 pale radial spines and 1-3, yellowish-brown to purplish black centrals, the longest hooked. Fruits scarlet. Distribution: USA (Texas, New Mexico, Utah, California and Arizona) and Mexico.
  • Mammillaria microcarpa var. auricarpa W.T.Marshall: (Mammillaria grahamii) has pale, radial spines and a yellowish brown hooked central spine. Flowers are 4 cm in diameter, pink, and are followed by golden yellow berries. Distribution: U.S.A. (Arizona).
  • Mammillaria microcarpa f. cristata hort.: crested form.
  • Mammillaria oliviae Orcutt: (Mammillaria grahamii)
  • Mammillaria pseudoalamensis Backeb.: (Mammillaria grahamii subs. sheldonii) variant recognisable from M. alamensis for the absence of central spines, and larger flowers with a characteristic distinctive orange pistil. Distribution: West of Alamos, Sonora, Mexico.
  • Mammillaria swinglei (Britton & Rose) Boed.: (Mammillaria grahamii subs. sheldonii) has wide funnelform purplish pink flowers up to 3. Stile style pink, twice as long as the pink filaments; stigma-lobes 8, linear, pointed, green.

28189 alexander Alexander Arzberger
Mammillaria microcarpa f. auricarpa (Mammillaria microcarpa var. auricarpa) Photo by: Alexander Arzberger
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