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Discocactus hartmannii var. mamillosus (Buining & Bredero) P.J.Braun
Kakteen Sukk. 36: 23. 1985
Family: CACTACEAE

= Discocactus mamillosus Buining & Bredero
Kakteen Sukk. 25(10): 217, figs. 1974

Accepted Scientific Name: Discocactus heptacanthus (Barb.Rodr.) Britton & Rose
Cactaceae (Britton & Rose) 3: 218, fig. 232. 1922 Britton & Rose

Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Agócs György
Field number HU 191 (Collector Leopoldo Horst) Locality West and North of Rio Apa, Maneco, Mato Grosso do Sul, Brazil. Blooming habit at Rebutialand cactus collection Demjén, Hungary.

Synonyms:

See all synonyms of Discocactus heptacanthus
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Accepted name in llifle Database:
Discocactus heptacanthus (Barb.Rodr.) Britton & Rose
Cactaceae (Britton & Rose) 3: 218, fig. 232. 1922
Synonymy: 50 Accepted name in llifle Database:
Discocactus heptacanthus f. aurea hort.

Accepted name in llifle Database:
Discocactus heptacanthus subs. catingicola (Buining & Bredero) N.P.Taylor & Zappi
Cactaceae Consensus Init. 3: 7. 1997
Synonymy: 2 Accepted name in llifle Database:
Discocactus heptacanthus subs. magnimammus (Buining & Bredero) N.P.Taylor & Zappi
Bradleya 9: 86. 1991
Synonymy: 4
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Subspecies, varieties, forms and cultivars of plants belonging to the Discocactus heptacanthus group

  • Discocactus cangaensis Diers & Esteves: has oval-round areoles, very woolly at first. Spines subulate, bent inwards, amber-coloured, the lower ones the longer. Distribution: east of the Rio Caiapo, South-west to west of Goiás, Brazil.
  • Discocactus cephaliaciculosus Buining & Bredero ex P.J.Braun & Esteves: has a white cephalium filled with strong, straight and dark red to black spines up 2 cm (or more) cm long. Distribution: southeastern Goiás and northeastern Tocantins, Brazil.
  • Discocactus griseus Buining & Bredero: has grey-green colour of the body. Distribution: Serra dos Alegres (near Joao Pinheiro), West Minas Gerais, Brazil.
  • Discocactus hartmannii (K.Schum.) Britton & Rose: has solitary stems up to 6 cm tall and 15 cm wide, completely divided transversely into large tubercles. Perianth-segments acute. Distribution: Paraguay and Brazil.
  • Discocactus heptacanthus (Barb.Rodr.) Britton & Rose: has typically 7 spines, but variable in number from 5 to 11. Stem solitary flattened. It is a very variable species. Distribution: Eastrern Bolivia, Paraguay, Brazil.
  • Discocactus heptacanthus f. aurea hort.: has golden yellow (chlorophylls-less) stems.
  • Discocactus heptacanthus subs. catingicola (Buining & Bredero) N.P.Taylor & Zappi
  • Discocactus heptacanthus subs. magnimammus (Buining & Bredero) N.P.Taylor & Zappi: has more numerous ribs (up to 22) completely divided into distinct tubercles, and shorter spines that are round in cross section. Distribution: Between Caracol and Bela Vista, Mato Grosso
  • Discocactus mamillosus Buining & Bredero: has more numerous ribs (up to 22), small nipple-like tubercles on the edges, and fewer spines (5-7) in the areole. Distribution: West and north of the Rio Apa in the Mato Grosso.
  • Discocactus pachythele Buining & Bredero: intermediate between ssp. heptacanthus and ssp. magnimammus. Distribution: Northeast of Aquidauana (Serro de Maracaju) and Cipolandia, Mato Grosso, Brazil
  • Discocactus silicicola Buining & Bredero: is variable in shape, but closely related to D. magnimammus, D. mamillosa and D. hartmannii. Distribution: Near Porto Murtinho North of Rio Apa, Mato Grosso do Sul, Brazil

28100 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger
24310 agocs Agócs György
At Rebutialand cactus collection Demjén, Hungary. (Discocactus mamillosus) Photo by: Agócs György

28102 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger
24294 agocs Agócs György
Field number HU 191 (Collector Leopoldo Horst) Locality West and North of Rio Apa, Maneco, Mato Grosso do Sul, Brazil. (Discocactus mamillosus) Photo by: Agócs György

28085 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger
28101 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger

28088 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger
28125 alexander Alexander Arzberger
Discocactus hartmannii var. mamillosus (Discocactus mamillosus) Photo by: Alexander Arzberger


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