Micranthocereus flaviflorus

Micranthocereus flaviflorus
	Micranthocereus flaviflorus
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cereeae
Genre :	Micranthocereus
Type :	Micranthocereus flaviflorus
Scientific name
	Micranthocereus flaviflorus
	Buining & Brederoo

Micranthocereus flaviflorus ssp. flaviflorus Bahia 2018

Micranthocereus flaviflorus ssp. densiflorus at the type location Bahia 2018

Micranthocereus flaviflorus is a species of the genus Micranthocereus in the cactus family(Cactaceae). The specific epithet refers to the yellow flowers.

description

Micranthocereus flaviflorus grows branching from the base with columnar bluish green shoots and reaches heights of up to 75 centimeters. The shoots have a diameter of up to 4 centimeters. There are about 16 slightly tuberous ribs . The oval areoles are covered with white wool, which later turns gray, and hair up to 1 centimeter long. The yellowish-brown thorns that arise from them turn dirty white with age. The approximately 9 central spines are between 0.6 and 1.3 inches long. The central central spine is more robust and is up to 2 centimeters long. The numerous translucent radial spines are up to 5 millimeters long. The cephalium consists of white wool and hair-like thorns that are up to 1 centimeter long.

The tubular flowers are red to rose red to bright cream or yellowish. They are up to 1.8 centimeters long and have a diameter of 6 millimeters. The berry-like, bright red fruits are 7 to 8 millimeters long and have the same diameter.

Distribution, systematics and endangerment

Micranthocereus flaviflorus is common in the Brazilian state of Bahia . The first description was published in 1974 by Albert Frederik Hendrik Buining and Arnold J. Brederoo (1917-1999).

The following subspecies are distinguished:

Micranthocereus flaviflorus ssp. flaviflorus
Micranthocereus flaviflorus ssp. densiflorus (Buin. & Bred.) PJBraun & Esteves
Micranthocereus flaviflorus ssp. uilianus (Bred. & Bercht) PJBraun & Esteves

In the Red List of Threatened Species of IUCN is the species as " Near Threatened (NT)", d. H. listed as low risk.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 433 .

Individual evidence

↑ Cacti and other succulents . Volume 25, Number 2, 1974, pp. 25-27.
↑ Pierre J. Braun, Eddie Esteves Pereira: On the taxonomy of Micranthocereus flaviflorus subsp. uilianus (Cactaceae) from Bahia, Brazil. In: Cacti and other succulents. Volume 59, Number 5, 2008, 122-125.
↑ Micranthocereus flaviflorus in the IUCN Red List of Threatened Species 2013.2. Posted by: Machado, M. & Braun, P., 2013. Retrieved October 22, 2015.

Web links

Commons : Micranthocereus flaviflorus - Collection of images, videos and audio files

[1] Cacti and other succulents . Volume 25, Number 2, 1974, pp. 25-27.

[2] Pierre J. Braun, Eddie Esteves Pereira: On the taxonomy of Micranthocereus flaviflorus subsp. uilianus (Cactaceae) from Bahia, Brazil. In: Cacti and other succulents. Volume 59, Number 5, 2008, 122-125.

[3] Micranthocereus flaviflorus in the IUCN Red List of Threatened Species 2013.2. Posted by: Machado, M. & Braun, P., 2013. Retrieved October 22, 2015.