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Gymnocalycium fischeri is a globular cactus of the family Cactaceae. The first description was in 2002 by Josef Halda Jacob, Petr Kupčák, Emil Lukasik and Jaromír Sladkovský. The specific epithet honors the Czech cactus collector Ladislav Fischer.

Gymnocalycium fischeri
Gymnocalycium fischeri ssp suyuquense at the Orto Botanico dell'Università di Genova
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Tribe:	Trichocereeae
Genus:	Gymnocalycium
Species:	G. fischeri
Binomial name
Gymnocalycium fischeri Halda

Description

Gymnocalycium fischeri have blue-gray-green, flat, spherical stems reaching a diameters of 8–10 centimetres (3.1–3.9 in) and a height of up to 15 centimetres (6 in). The single central spine is rare or absent and it is formed only in older plants. The five to seven (rarely nine) radiating, rigid spines are gray-brown. The spines have a length from 1.2 to 2.2 centimetres (0.47 to 0.87 in). The funnel-shaped, white to pale pink blooms have a darker pink throat. They are up to 20 centimetres (8 in) long and have a diameter of 18 centimetres (7 in). The blue-green fruits are spindle-shaped and reach a length of 2.5 to 3.8 centimetres (0.98 to 1.50 in).

Distribution

Gymnocalycium fischeri is common in the Argentine province of San Luis in the west to south-east of the foothills of the Sierra de San Luis at altitudes up to 1,300 metres (4,300 ft).

Subspecies

• Gymnocalycium fischeri subsp. suyuquense E.Berger, 2003

References

• Biolib
• Tropicos
• J. J. Halda et al.: New descriptions and combinations. In: Acta Musei Richnoviensis Sect. Nat.

Bibliography

• Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names. Birkhäuser 2004

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