Synonyms

Echinocactus mostii*, Gymnocalycium mostii ssp. mostii, Gymnocalycium bicolor, Gymnocalycium valnicekianum var. bicolor, Gymnocalycium grandiflorum, Gymnocalycium immemoratum, Gymnocalycium kurtzianum, Echinocactus kurtzianus, Gymnocalycium prochazkianum, Gymnocalycium prochazkianum ssp. prochazkianum, Gymnocalycium valnicekianum ssp. prochazkianum, Gymnocalycium prochazkianum ssp. simile, Gymnocalycium prochazkianum ssp. simplex, Gymnocalycium tobuschianum, Gymnocalycium valnicekianum, Gymnocalycium mostii ssp. valnicekianum, Gymnocalycium valnicekianum ssp. valnicekianum
* Basionym

Distribution

Argentina (Córdoba, Santiago del Estero)

Conservation status

(4)   Least Concern, LC

Comments

In agreement withAndeson (2001, 356), and Hunt et al. (2006, text: 135), and contrary to Charles & Meregalli (2008, 24: 25-27) and Charles (2009, 169-173), we consider the populations of Gymnocalycium valnicekianum Jajó to be the northwest extension of the dominant and variable Gymnocalycium mostii (Gürke) Britton & Rose. Even Gymnocalycium prochazkianum Sorma, not listed in Anderson (2001), considered still to be evaluated in Hunt et al. (2006, text: 132), and annexed to Gymnocalycium mostii ssp. valnicekianum (Jajó) Meregalli and Charles, by Charles & Meregalli (2008, 24: 25-27) and Charles (2009, 169), is in our opinion a synonym of G. mostii. In fact, both taxa have just different forms of spination in respect to the type species: the valnichekianum form with more spines and the less spiny prochazkianum form, but in both are recognizable the structure of the ribs and the tubercles of G. mostii. Instead, we believe that the populations which most stand out in the range of G. mostii, are those of Gymnocalycium bicolor Schütz (invalid name), in the area of Cruz del Eje. In fact, all individuals shows the distinctive character of the central and lower, dark and stouter radial spines, with respect to the clear upper radial; but even in this case all we are faced with is a variant of spination of the well-known structure of G. mostii. For these reasons we consider G. valnicekianum and G. prochazkianum synonyms of G. mostii. (Quoted from: Anceschi & Magli 2013b, 65-66)

Genus

Gymnocalycium

Other species

alboareolatum
andreae
anisitsii
baldianum
bayrianum
bodenbenderianum
borthii
bruchii
buenekeri
calochlorum
capillaense
cardenasianum
castellanosii
chiquitanum
denudatum
eurypleurum
ferrarii
fischeri
glaucum
horridispinum
horstii
hossei
kieslingii
marsoneri
megatae
mesopotamicum
mihanovichii
monvillei
mostii
nigriareolatum
oenanthemum
paediophilum
paraguayense
pflanzii
reductum
ritterianum
robustum
saglionis
schickendantzii
schroederianum
spegazzinii
stellatum
stenopleurum
uebelmannianum
uruguayense