Uebelmannia gummifera

Uebelmannia gummifera
	Uebelmannia gummifera
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cereeae
Genre :	Uebelmannia
Type :	Uebelmannia gummifera
Scientific name
	Uebelmannia gummifera
	( Backeb. & Voll ) Buining

Uebelmannia gummifera is a species of the genus Uebelmannia in the cactus family(Cactaceae). The specific epithet refers to the "rubbery" mucous ducts under the epidermis.

description

Cross-section through Uebelmannia gummifera with a view of the mucous ducts

Uebelmannia gummifera grows with spherical to slightly elongated bodies that reach heights of up to 10 centimeters and diameters of up to 6 centimeters. In rare cases, short columnar specimens up to 40 centimeters high have been found. There are noticeable mucous ducts under the somewhat rough epidermis . The approximately 32 narrow ribs are initially humped . The areoles on it are grayish white. The single, gray central spine is straight and directed slightly downwards. One of the three radial spines, up to 5 millimeters long, is directed a little downwards.

The bright yellow flowers are up to 2 centimeters long and 1.5 centimeters in diameter. The yellowish green fruits are up to 8 millimeters long and have a diameter of up to 6 millimeters.

Systematics, distribution and endangerment

Uebelmannia gummifera is widespread in the Brazilian state of Minas Gerais in the Serra de Ambrosia and grows on quartz gravel. It was first described as Parodia gummifera in 1950 by Curt Backeberg and Otto Voll . Albert Frederik Hendrik Buining placed them in the genus Uebelmannia in 1967 .

Uebelmannia gummifera is listed in Appendix I of the Washington Convention on Endangered Species . In the Red List of Threatened Species of IUCN from 2002, she was as " Vulnerable (VU) ", d. H. classified endangered. In 2013 the species was named " Endangered (EN) ". H. listed as endangered.

Two subspecies are also distinguished in the IUCN Red List

Uebelmannia gummifera subspec. gummifera
Uebelmannia gummifera subspec. meninensis (Buining & Brederoo) PJBraun & Esteves

proof

Individual evidence

↑ Archivos do Jardim Botanico do Rio de Janeiro . Volume 9, 1950, p. 169.
^ Succulenta . Volume 46, Number 11, 1967, p. 161
↑ Uebelmannia gummifera in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Machado, M., Braun, P. & Taylor, NP, 2010. Retrieved January 5, 2014.

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 637 .

Web links

Commons : Uebelmannia gummifera - collection of images, videos and audio files

[1] Archivos do Jardim Botanico do Rio de Janeiro . Volume 9, 1950, p. 169.

[2] Succulenta . Volume 46, Number 11, 1967, p. 161

[3] Uebelmannia gummifera in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Machado, M., Braun, P. & Taylor, NP, 2010. Retrieved January 5, 2014.