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Mammillaria zeyeriana F.Haage ex K.Schum.
Gesamtbeschr. Kakt. 574. 1898 as Mamillaria

Accepted Scientific Name: Mammillaria grusonii C.Runge
Gartenflora xxxviii. (1889) 105. fig. 20. ( "grusoni" )

Mammillaria zeyeriana Photo by: Valentino Vallicelli


See all synonyms of Mammillaria grusonii
Accepted name in llifle Database:
Mammillaria grusonii C.Runge
Gartenflora xxxviii. (1889) 105. fig. 20. ( "grusoni" )
Synonymy: 8

Subspecies, varieties, forms and cultivars of plants belonging to the Mammillaria grusonii group

  • Mammillaria durangicola Repp.: This form has 10-16 radials, 4-15 mm long, 1 - 3 central, 10-17mm long, black, and flowers as in Mammillaria pachycylindrica, with a brownish midstrip.
  • Mammillaria grusonii C.Runge: It is one of the largest species in the genus and usually solitary, it reaches 30 cm or more in diameter.
  • Mammillaria mexicensis R.T.Craig: has dark pink flowers.
  • Mammillaria pachycylindrica Backeb.: (Reppennhagen considered it a separate form) with more spines, 20–23 grayish-white radials and about 6 centrals, at first dark, blackish-brown, becoming gray, tepals lobes with a wide brownish-pink midstrip.
  • Mammillaria papasquiarensis (Bravo) Repp.: is a long spined form, with 8-10 radial spines, 5-40 mm long, and 1 to 3 central spines, 40 - 100 mm long. The flowers are white with a pinkish midstrip.
  • Mammillaria tinuvieliae Laferr.
  • Mammillaria zeyeriana F.Haage ex K.Schum.: The spines are of intermediate measurement, of which the radials are 10 to 15, 8-15 mm long, and the centrals usually 4 (but sometime up to 6), 12 - 25 mm long. The flowers are similar to those of Mammillaria papasquiarensis.

11902 cactus-art Cactus Art
Mammillaria zeyeriana Photo by: Cactus Art
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