Gymnocalycium uruguayense

Gymnocalycium uruguayense
Conservation status
Vulnerable  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Gymnocalycium
Species:	G. uruguayense
Binomial name
Gymnocalycium uruguayense (Arechav.) Britton & Rose 1922
Synonyms
Echinocactus uruguayensisArechav. 1905 Gymnocalycium hyptiacanthum subsp. uruguayense(Arechav.) Mereg. 2008 Echinocactus guerkeanusF.Haage 1911 Echinocactus melanocarpusArechav. 1905 Echinocactus netrelianusMonv. ex Labour. 1853 Echinocactus platensis var. guerkeanus(F.Haage) Speg. 1905 Echinocactus uruguayensis f. depressusOsten 1941 Gymnocalycium artigasHerter 1951 Gymnocalycium artigas var. roseiflorum(Y.Itô) Milt 2015 Gymnocalycium guerkeanum(F.Haage) Britton & Rose 1922 Gymnocalycium hyptiacanthum subsp. netrelianum(Monv. ex Labour.) Mereg. 2008 Gymnocalycium leeanum var. netrelianum(Monv. ex Labour.) Backeb. 1936 Gymnocalycium leeanum var. roseiflorumY.Itô 1957 Gymnocalycium melanocarpum(Arechav.) Britton & Rose 1922 Gymnocalycium netrelianum(Monv. ex Labour.) Britton & Rose 1922 Gymnocalycium rauschiiH.Till & W.Till 1990 Gymnocalycium uruguayense var. roseiflorumY.Itô 1957

Gymnocalycium uruguayense is a species of Gymnocalycium from Brazil and Uruguay. ^[2]

Description

Gymnocalycium uruguayense forms groups with juicy, green to blue-green bulbous body which is low to the ground, flattened, spherical shoots that are either flush with the ground or protrude 3 to 4 centimeters. These shoots have diameters of 5 to 10 centimeters (rarely up to 14 centimeters). The plant features 6 to 10 (rarely up to 14) ribs divided into hexagonal humps with noticeable chin-like projections. It lacks central spines but has 3 to 7 finely fluffy, straight to slightly curved, yellowish-brown to whitish marginal spines, 1 to 3 centimeters long.

The bell-shaped flowers are whitish to lemon yellow or pink, sometimes greenish-yellow, and reach up to 4 centimeters in length and 5.5 to 6.5 centimeters in diameter. The flowers are occasionally unisexual, and the plants are dioecious. The elongated to egg-shaped fruits are dark green to blue-green, up to 2 centimeters long, and 1 centimeter in diameter. ^[3]

Distribution

Gymnocalycium uruguayense is found in Brazil (Rio Grande do Sul) and Uruguay. ^[4]

Taxonomy

First described as Echinocactus uruguayensis by José Arechavaleta in 1905, the species name refers to its distribution in Uruguay. ^[5] In 1922, Nathaniel Lord Britton and Joseph Nelson Rose reclassified it under the genus Gymnocalycium. ^[6]

References

1. Assessment), João Larocca (Global Cactus (2010-06-04). "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2023-12-08.
2. "Gymnocalycium uruguayense in Tropicos".
3. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 329. ISBN   3-8001-4573-1.
4. "Gymnocalycium uruguayense". www.llifle.com. Retrieved 2024-05-26.  This article incorporates textfrom this source, which is available under the CC BY-SA 3.0 license.
5. Montevideo, Museo Nacional de; Montevideo., Museo de Historia Natural de (1901). "Anales del Museo Nacional de Montevideo". El Museo. Retrieved 2024-05-26.
6. Britton, Nathaniel Lord; Eaton, Mary E.; Rose, J. N.; Wood, Helen Adelaide (1919). The Cactaceae : descriptions and illustrations of plants of the cactus family. Washington: Carnegie Institution of Washington. doi:10.5962/bhl.title.46288.

External links

• Media related to Gymnocalycium uruguayense at Wikimedia Commons
• Data related to Gymnocalycium uruguayense at Wikispecies