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Echinocactus tricornis Monv. ex A.Dietr.
Allg. Gartenzeitung (Otto & Dietrich) 14: 203. 1846 Notes: =Discocactus alteolens
Family: CACTACEAE

= Discocactus tricornis Monv. ex Pfeiff.
Abbild. Beschr. Cact. 2: t. 28. 1850 Pfeiff.

Accepted Scientific Name: Discocactus placentiformis (Lehm.) K.Schum.
Nat. Pflanzenfam. Nachtr. [Engler & Prantl] iii. 6 a. (1894) 190.

Echinocactus tricornis (Discocactus tricornis) Photo by: Agócs György
At Rebutialand cactus collection Demjén, Hungary.

Synonyms:

See all synonyms of Discocactus placentiformis
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Accepted name in llifle Database:
Discocactus placentiformis (Lehm.) K.Schum.
Nat. Pflanzenfam. Nachtr. [Engler & Prantl] iii. 6 a. (1894) 190.
Synonymy: 26
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Subspecies, varieties, forms and cultivars of plants belonging to the Discocactus placentiformis group

  • Discocactus crystallophilus Diers & Esteves: has (3)5-7 brown-reddish to pale grey spines, lateral to 2 cm long, lowermost one to 3 cm long. Uppermost about 5 mm long. Distribution: Minas Gerais.
  • Discocactus insignis Pfeiff.: has 5 to 7 spines of which the lowest one more long and recurved backwards to the plant. Distribution: neighbourhood of Grao Mogol, Minas Gerais, Brazil.
  • Discocactus latispinus Buining ex Bredero ex J.Theun.: has 5 spines of which the lowest one more long and characteristically flattened. distribution: Joaquim Felicio and adjacent areas, Minas Gerais.
  • Discocactus multicolorispinus P.J.Braun & Bredero: spines mostly amber like, but variable in colouration (multicolored) hence the name. Distribution: Serra do Espinhaco in Minas Gerais. Brasil.
  • Discocactus placentiformis (Lehm.) K.Schum.: is a small flattish globular cactus, with woolly cephalium. It is one of the most widely distributed and variable species. Distribution: whidespread in Minas Gerais.
  • Discocactus placentiformis var. minor-horridulus n.n.: has smaller stems, with 5(-7) spines of which the lowest one more long and flattened. Flower often pink in the exterior. Distribution: Diamantina, Minas Gerais, Brazil.
  • Discocactus pulvinicapitatus Buining & Bredero: is very similar to Discocactus latispinus, but is larger size and has a larger cephalium. Distribution: Central part of Minas Gerais, Brazil.
  • Discocactus tricornis Monv. ex Pfeiff.: has 3 radial spines pointing downward, occasionally accompanied by 2-3 very short spines pointing upward. (same as Discocactus alteolens?). Distribution. Eastern central Brazil.

28096 alexander Alexander Arzberger
Echinocactus tricornis (Discocactus tricornis) Photo by: Alexander Arzberger
24306 agocs Agócs György
At Rebutialand cactus collection Demjén, Hungary. (Discocactus tricornis) Photo by: Agócs György

24307 agocs Agócs György
At Rebutialand cactus collection Demjén, Hungary. (Discocactus tricornis) Photo by: Agócs György
24309 agocs Agócs György
At Rebutialand cactus collection Demjén, Hungary. (Discocactus tricornis) Photo by: Agócs György

28126 alexander Alexander Arzberger
Echinocactus tricornis (Discocactus tricornis) Photo by: Alexander Arzberger
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