Gasteria croucheri

Gasteria croucheri
	Gasteria croucheri
Systematics
	Monocots
Order :	Asparagales (Asparagales)
Family :	Grass trees (Xanthorrhoeaceae)
Subfamily :	Affodilla family (Asphodeloideae)
Genre :	Gasteria
Type :	Gasteria croucheri
Scientific name
	Gasteria croucheri
	( Hook.f. ) Baker

Gasteria croucheri is a species of the genus Gasteria in the subfamily of the Affodill family (Asphodeloideae). The specific epithet croucheri honors the British gardener Joseph Croucher (1838–1917).

description

Vegetative characteristics

Gasteria croucheri grows without a trunk, is prostrate to upright and reaches a height of 25 to 30 centimeters with a diameter of 60 centimeters. It is single or divided into dense groups. The upright, spreading, rarely spreading or bent back, triangular to linear-lanceolate leaves form a rosette . The dark green, often bluish tinged leaf blade is 20 to 36 centimeters long and 3 to 10 centimeters wide. It is covered with dense, white spots arranged in diagonal stripes. The epidermis is smooth and rarely rough. The finely serrated and only sometimes serrated leaf margin is warty. The tip of the leaf is bluntly rounded or pointed and has an attached tip. Young leaves are two-lined, ribbon-shaped, spreading to erect, smooth or rough. The point is pointed and only rarely bluntly rounded and has an attached point.

Inflorescences and flowers

The inflorescence is different. It forms a flat-topped panicle and reaches a length of up to 50 centimeters, or it is panicley with or without a pair of side branches. The bracts with a few hairs are 5 millimeters long. The flowers are on 6 to 7 millimeter long peduncles . The inflorescence is 28 to 40 millimeters long. Your bulbous part is narrowly elliptical, has a diameter of 5 to 9 millimeters and extends over half the length of the flower envelope. The pink flower shell is striped white and green on the upper half. The stylus does not protrude or just protrudes from the flower envelope.

The flowering time is in the middle of summer.

Fruits and seeds

The bluntly rounded fruits are 18 to 25 millimeters long. They contain seeds 3 to 4 millimeters long and 2 to 3 millimeters wide .

Systematics and distribution

Gasteria croucheri is distributed in South Africa in the province of KwaZulu-Natal and in the north of the province of Eastern Cape in subtropical thickets on rock faces made of quartzitic sandstone.

The first description as Aloe croucheri by Joseph Dalton Hooker was published in 1869. John Gilbert Baker placed the species in the genus Gasteria in 1880 .

A synonym is Gasteria disticha var. Natalensis Baker (without year).

The following subspecies are distinguished:

Gasteria croucheri subsp. croucheri
Gasteria croucheri subsp. pendulifolia (van Jaarsv.) Zonn.
Gasteria croucheri subsp. pondoensis N.R. Crouch, Gideon F.Sm. & DGAStyles

proof

literature

Ernst Jacobus van Jaarsveld: Gasteria croucheri . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 204 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 57.
^ Curtis's Botanical Magazine . Volume 95, 1869, plate 5812 ( online ).
↑ JG Baker: A Synopsis of Aloineae and Yuccoideae . In: Journal of the Linnean Society. Botany . Volume 18, London 1881, pp. 196-197 ( online ).
^ Ernst Jacobus van Jaarsveld: Gasteria pendulifolia van Jaarsv., A new species from KwaZulu-Natal . In: Cactus and Succulent Journal . Volume 73, Number 2, Cactus and Succulent Society of America, 2001, pp. 68-70.
↑ BJM Zonneveld, EJ van Jaarsveld: Taxonomic implications of genome size for all species of the genus Gasteria Duval (Aloaceae) . In: Plant Systematics and Evolution . Volume 251, Number 2-4, pp. 217-227 ( doi: 10.1007 / s00606-004-0244-x ).
↑ Neil R. Crouch, Gideon F. Smith, D. Styles: Asphodelaceae: Alooideae. Gasteria croucheri subsp. Pondoensis, a new cremnophyte from Pondoland, South Africa . In: Bothalia . Volume 41, number 1, 2011, pp. 183-185 ( PDF ).

Web links

Commons : Gasteria croucheri - Collection of images, videos and audio files

Gasteria croucheri at plantzafrica.com
Gasteria croucheri in the Red List of South African Plants

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 57.

[2] Curtis's Botanical Magazine . Volume 95, 1869, plate 5812 ( online ).

[3] JG Baker: A Synopsis of Aloineae and Yuccoideae . In: Journal of the Linnean Society. Botany . Volume 18, London 1881, pp. 196-197 ( online ).

[4] Ernst Jacobus van Jaarsveld: Gasteria pendulifolia van Jaarsv., A new species from KwaZulu-Natal . In: Cactus and Succulent Journal . Volume 73, Number 2, Cactus and Succulent Society of America, 2001, pp. 68-70.

[5] BJM Zonneveld, EJ van Jaarsveld: Taxonomic implications of genome size for all species of the genus Gasteria Duval (Aloaceae) . In: Plant Systematics and Evolution . Volume 251, Number 2-4, pp. 217-227 ( doi: 10.1007 / s00606-004-0244-x ).

[6] Neil R. Crouch, Gideon F. Smith, D. Styles: Asphodelaceae: Alooideae. Gasteria croucheri subsp. Pondoensis, a new cremnophyte from Pondoland, South Africa . In: Bothalia . Volume 41, number 1, 2011, pp. 183-185 ( PDF ).