Echinocereus bonkerae

Echinocereus bonkerae
	Echinocereus bonkerae
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Echinocereus
Type :	Echinocereus bonkerae
Scientific name
	Echinocereus bonkerae
	Thornber & Bonker

Echinocereus bonkerae is a species of plant in the genus Echinocereus from the cactus family(Cactaceae). The specific epithet bonkerae honors Mrs. Frances Bonker from Pasadena .

description

Echinocereus bonkerae forms loose groups consisting of 5 to 15 shoots . The green, cylindrical to elongated shoots are 12 to 20 centimeters long and 4 to 7.5 centimeters in diameter, which are barely covered by the thorns. There are 11 to 16 ribs that are not noticeably humped. The single strong, upright, stiff central spine is white or light gray and pointed darker. It has a length of 6 to 7.5 millimeters. The 11 to 14 spread, straight, whitish or grayish radial spines are 1.2 to 2 centimeters long.

The broad, funnel-shaped flowers are magenta to reddish purple in color. They appear in the upper half of the shoots, are 5 to 6.2 inches long and reach the same diameter. The spherical, fleshy, initially green fruits turn red later.

Distribution, systematics and endangerment

Echinocereus bonkerae is found in the United States in the state of Arizona and in the neighboring Mexican state of Sonora on dry grasslands.

The first description by John James Thornber and Frances Bonker was published in 1932. Nomenclatory synonyms are Echinocereus fendleri var. Bonkerae (Thornber & Bonker) LDBenson (1944), Echinocereus boyce-thompsonii var. Bonkerae (Thornber & Bonker) Peebles (1949), Echinocereus fasciculatus var. Bonkerae (Thornber & Bonker) LDBenson (1969) Echinocereus fasciculatus subsp. bonkerae (Thornber & Bonker) NP Taylor (1997).

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". H. listed as not endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 192 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 28.
^ John James Thornber, Frances Bonker: The fantastic clan. The cactus family. Studies of that unique and fascinating growth, the cactus plant, treating of all the most important groups of cacti known, with scientific accuracy, and depicting the charm of the desert land, its magic spell and wondrous lure, in the great cactus area of the world, the American desert of the Southwest . New York 1932, pp. 71-73, 85.
↑ Echinocereus bonkerae in the IUCN Red List of Threatened Species 2013.2. Listed by: Baker, M., 2010. Retrieved January 24, 2014.

Web links

Commons : Echinocereus bonkerae - Collection of images, videos and audio files

Echinocereus bonkerae in the Flora of North America

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 28.

[2] John James Thornber, Frances Bonker: The fantastic clan. The cactus family. Studies of that unique and fascinating growth, the cactus plant, treating of all the most important groups of cacti known, with scientific accuracy, and depicting the charm of the desert land, its magic spell and wondrous lure, in the great cactus area of the world, the American desert of the Southwest . New York 1932, pp. 71-73, 85.

[3] Echinocereus bonkerae in the IUCN Red List of Threatened Species 2013.2. Listed by: Baker, M., 2010. Retrieved January 24, 2014.