= Gymnocalycium monvillei var. orientale Neuhuber
Gymnocalycium 6(3): 103 (1993).
Accepted Scientific Name: Gymnocalycium monvillei (Lem.) Britton & Rose
Cactaceae (Britton & Rose) 3: 161. 1922 [12 Oct 1922] et: Pfeiff. ex K.Schum. in Gesamtbeschr. Kakt. 411. 1898 (as Monvillei) Britton & Rose
Gymnocalycium achirasense var. orientale (Gymnocalycium monvillei var. orientale) Photo by: Valentino Vallicelli
Origin and Habitat: Argentina Northeast (Córdoba)
Type locality: Argentina, Prov. Cordoba, Alpa Corral, sltitude 850 m.
Synonyms:
See all synonyms of Gymnocalycium monvillei
Description: G. achirasense is a (usually) solitary geophytic cactus.
Stem: Flattened or globular, dark-green, grey-green to olive green, 5-6 cm in diameter up to 5 cm in height, but in cultivation it can become 7-8 cm high (or more) over the years.
Ribs: 12-15
Radial spines: Stout, aggressive, 10 up to 12, but usually fewer in young plants, bent against the body.
Central spines: Usually absent or 1 erected
Flowers: Are some of the largest in this genus, often growing larger than the plant!, 6 up to 7 cm long and broad, whitish, pale pink to lavender, with a darker mid-strip.
Fruits: Green
Seeds: Dark brown.
More...Subspecies, varieties, forms and cultivars of plants belonging to the Gymnocalycium monvillei group
Gymnocalycium monvillei (Lem.) Britton & Rose: Strongly spined species with 7-13 long, curving, stiff yellow translucent radial spines with a red base on a bright green background. (Origin Córdoba province)- Gymnocalycium monvillei subs. achirasense (H.Till & Schatzl) H.Till: Has 10-12 radial spines almost flat against the plant body (Origin San Luis province)
- Gymnocalycium monvillei subs. brachyanthum (Gürke) H.Till: Has approx. 7 spines (Origin San Luis province)
- Gymnocalycium monvillei subs. horridispinum (G.Frank ex H.Till) H.Till: Has 10-12 strong stiff radial spines.
- Gymnocalycium monvillei var. orientale Neuhuber
- Gymnocalycium monvillei var. steineri H.Till: broom shaped protruding or long intertwined golden-yellow spination. Distribution: Sierra Grande, Cordoba, Argentina.
- Gymnocalycium monvillei f. villamercedense H.Till & Neuhuber: (ssp. monvillei) has globular solitary stems with very developed chin-shaped protuberances without a swollen taproot. Fruits red. Distribution: San Luis, Argentina.
- Gymnocalycium multiflorum (Hook.) Britton & Rose: (same as ssp. monvillei?) Spines 7 to 10, all radial, spreading, somewhat flattened, yellow; flowers pinkish to nearly white. (Origin Córdoba province)
- Gymnocalycium multiflorum var. parisiense (K.Schum.) P.Fourn.: Same as multiflorum, but with whitish or pale yellowish spines. Distribution: Córdoba and San Luis, Argentina
Notes: The variety name "orientale" means that it lies in the most eastern part of the habitat.
Bibliography: Major references and further lectures
1) James Cullen, Sabina G. Knees, H. Suzanne Cubey “The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass” Cambridge University Press, 11/Aug./2011
2) David Hunt, Nigel Taylor “The New Cactus Lexicon” DH Books, 2006
3) Edward F. Anderson “The Cactus Family” Timber Press, 2001
4) E. W Putnam “Gymnocalyciums: Handbook No. 5.” National Cactus And Succulent Society, Smart & Co. (Printers) Ltd., Brackley, Northants. 1978
5) N.L. Britton, J.N. Rose. "The Cactaceae: Descriptions and illustrations of plants of the cactus family" Volume 3
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Gymnocalycium achirasense var. orientale (Gymnocalycium monvillei var. orientale) Photo by: Paolo Di Varena
Gymnocalycium achirasense var. orientale (Gymnocalycium monvillei var. orientale) Photo by: Cactus Art
Gymnocalycium achirasense var. orientale (Gymnocalycium monvillei var. orientale) Photo by: Cactus Art
Gymnocalycium achirasense var. orientale (Gymnocalycium monvillei var. orientale) Photo by: Cactus ArtCultivation and Propagation: Summer grower, water regularly in summer, keep rather dry in winter. It grows well in full sun or light shade.
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