Pseudoacanthocereus

Pseudoacanthocereus
	Pseudoacanthocereus brasiliensis f. boreominarum
Systematics
	Nuclear eudicotyledons
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Pachycereeae
Genre :	Pseudoacanthocereus
Scientific name
	Pseudoacanthocereus
	F. Knight

Pseudoacanthocereus is a genus of plants from the cactus family(Cactaceae). The botanical name of the genus is derived from the Greek verb "ψεύδω" (pseudo) for deceive and refers to the deceptive similarity with the genus Acanthocereus .

description

The species of the genus Pseudoacanthocereus , which initially grow somewhat upright, are usually elongated to elongated and much branched from the bottom. The slender shoots reach a diameter of up to 3 centimeters and have 3 to 7 high and thin ribs with small, brownish areoles from which numerous short, needle-like, white to brownish thorns arise.

The long funnel-shaped flowers are white, up to 15 centimeters long and open at night. Your flower cup and the flower tube are occupied with a few areoles that produce tufts with small thorns.

The fleshy, spherical to pressed spherical, thorny fruits are initially green and light yellow when ripe, strongly scented and non-tearing. They are up to 6 centimeters (or more) in diameter and contain white pulp. The fairly large, light brown seeds are up to 5 millimeters long and 3.5 millimeters wide.

Systematics and distribution

One species of the genus Pseudoacanthocereus is common in Brazil , the other in Venezuela .

The first description of the genus was made in 1979 by Friedrich Ritter . The type species of the genus is Acanthocereus brasiliensis . The genus includes the two species:

Pseudoacanthocereus brasiliensis (Britton & Rose) F.Ritter
Pseudoacanthocereus sicariguensis (Croizat & Tamayo) NPTaylor

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 549-550 .

Individual evidence

↑ Cacti in South America: Results of my 20 years of field research . Volume 1, p. 47, 1979
^ Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 549-550 .

Web links

Commons : Pseudoacanthocereus - collection of images, videos and audio files

Photos of Pseudoacanthocereus brasiliensis on site

[1] Cacti in South America: Results of my 20 years of field research . Volume 1, p. 47, 1979

[2] Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 549-550 .