Weingartia

Weingartia is a genus in the family Cactaceae, with species native to Bolivia and Argentina.

Weingartia
Weingartia westii
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Core eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Tribe:	Trichocereeae
Genus:	Weingartia Werdermann 1937 etc.

Distribution

Andes mountains of central and south Bolivia and northwest Argentina at elevations of 1600 – 3600 m.

Description

Weingartia lanata in flower.

Plants usually solitary. Stems globose to oblong, to 20 cm high and 15 cm, rarely 30 cm in diameter, fresh green. Ribs 12 - 18, spiraling, forming distinct tubercles. Areoles on the tubercle in excentric position, sunken in its higher part. Spines more robust and thick, 7 – 35 in one areole, radial spines 1 – 3 cm long, central spines 3 - 4, to 5 cm long. Flowers borne near the stem tips, one areole can produce up to 3 flowers, golden yellow to orange to reddish yellow, 1 – 3 cm in diameter. Floral tube scales broad and imbricated. Fruits globose to ovoid, brownish. Seeds oblong, 1 mm long, black or brown.

Taxonomy

The genus Weingartia was designated in 1937 by Werdermann to replace invalid genus Spegazzinia Backeberg 1933. All species of the genus Weingartia were transferred to synonymy status under the genus Rebutia (Hunt & Taylor, 1990; Hunt, 1999, Anderson 2001).[1] More recent research has indicated that the genus Rebutia as currently defined is polyphyletic. Sulcorebutia and Weingartia were kept as separate genera in the study; a summary cladogram for those species studied is shown below.[2]

	Rebutia I (R. pseudodeminuta, R. fiebrigii, R. deminuta, R. pygmaea, R. steinmannii and R. einsteinii)     Other genera         Browningia hertingiana         Browningia candelaris     Rebutia II (R. minuscula and R. padcayensis)       Sulcorebutia, Weingartia and Cintia

Species formerly classified as Weingartia, Sulcorebutia and Cintia Kníže & Říha show a close relationship to each other. The larger group of species of Rebutia studied, those with hairy or bristly pericarpels, form a separate, more distantly related clade (Rebutia I). It is suggested that these be excluded from the genus Rebutia. [2][3]

List of species

List of species accepted by The Plant List Org.[4]

Weingartia fidaiana (Backeb.) Werderm.

Weingartia kargliana Rausch

Weingartia lanata F. Ritter

Weingartia neocumingii Backeb.

Weingartia neumanniana (Backeb.) Werderm.

Weingartia westii (Hutchison) Donald

First description list

Subgenus Weingartia Group Weingartia fidaiana Weingartia fidaiana (Backeberg) Werdermann 1937 Weingartia cintiensis Cardenas 1958 Weingartia leocoriensis Cardenas 1964 Weingartia vilcayensis Cardenas 1964 Weingartia (under Gymnocalycium) westii Hutchison 1957 Group Weingartia neumanniana Weingartia neumanniana (Backeberg) Werdermann 1937 Weingartia kargliana Rausch 1979 Weingartia pygmaea F. Ritter 1980

Subgenus Cumingia Weingartia neocumingii Backeberg 1950 (syn. W. cumingii (Back.) Werd. 1937) Weingartia attenuata F. H. Brandt 1985 Weingartia brachygraphisa F. H. Brandt 1977 Weingartia buiningiana F. Ritter 1980 Weingartia callecallensis F. H. Brandt 1981 Weingartia chuquichuquiensis F. H. Brandt 1983 Weingartia columnaris F. H. Brandt 1986 Weingartia erinacea F. Ritter 1961 Weingartia flavida F. H. Brandt 1981 Weingartia gracilispina F. Ritter 1980 Weingartia hediniana Backeberg 1950 Weingartia knizei F. H. Brandt 1977 Weingartia lanata F. Ritter 1961 Weingartia longigibba F. Ritter 1961 Weingartia mairanana F. H. Brandt 1983 Weingartia mataralensis F. H. Brandt 1984 Weingartia miranda F. H. Brandt 1986 Weingartia multispina F. Ritter 1961 Weingartia neglecta F. H. Brandt 1983 Weingartia pilcomayensis Cardenas 1964 Weingartia platygona Cardenas 1964 Weingartia pulquinensis Cardenas 1951 Weingartia riograndensis F. Ritter 1961 Weingartia saetosa F. H. Brandt 1980 Weingartia saipinensis F. H. Brandt 1982 Weingartia sucrensis F. Ritter 1961 Weingartia trollii Oeser 1978

References

1. International Cactaceae Systematics Group
2. Ritz, Christiane M.; Martins, Ludwig; Mecklenburg, Rainer; Goremykin, Vadim & Hellwig, Frank H. (2007), "The molecular phylogeny of Rebutia (Cactaceae) and its allies demonstrates the influence of paleogeography on the evolution of South American mountain cacti", American Journal of Botany, 94: 1321–1332, doi:10.3732/ajb.94.8.1321, PMID 21636499. Summary cladogram based on Fig. 2.
3. Stefano Mosti, Nadeesha Lewke Bandara y Alessio Papini,Further insights and new combinations in Aylostera (Cactaceae) based on molecular and morphological data. Pak. J. Bot., 43(6): 2769-2785, 2011
4. http://www.theplantlist.org/browse/A/Cactaceae/Weingartia/

Literature

• Augustin K.: Weingartia: history, description and reclassification. Cactus & Co. 7. (2): 91-126, 2003
• Ritter Fr.: Kakteen in Südamerika, Spangenberg, 1980.
• Anderson E. F.: The Cactus Family, Timber Press, Portland, Oregon, 2001.