Agave pratensis

Agave pratensis
Systematics
Order :	Asparagales (Asparagales)
Family :	Asparagaceae (Asparagaceae)
Subfamily :	Agave family (Agavoideae)
Genre :	Agaves ( agave )
Subgenus :	Manfreda
Type :	Agave pratensis
Scientific name
	Agave pratensis
	A. Berger

Agave pratensis is a species of plant from the genus agaves ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet pratensis comes from Latin , means something like 'grassland' and refers to the preferred habitat of the species.

description

Agave pratensis forms elongated rhizomes more than 1.5 centimeters long and 1.1 to 1.2 centimeters wide. Their roots are fibrous. The three to six upright leaves are lanceolate-linear. Its tip is pointed and fibrous. The green, non-spotted leaf blade is 17.3 to 28 inches long and 0.65 to 1 cm wide. The leaf margins show a narrow, white, cartilaginous band that is continuously tiny papillate , but is smooth to the touch. The remains of the leaf base form a dense mass of fine, stiff, light brown fibers. They are 4.2 to 8 inches long.

The "eared" inflorescence reaches a height of 60 to 85 centimeters. The dense flower-bearing part is 5.4 to 6.2 inches long and bears five to nine sessile flowers . The ellipsoid ovary is 7 to 10 millimeters long. The tepals are dark (purple?). The flower tube, which is very short at 3 to 5 millimeters, is connected to the ovary without constriction. Their upright tips are 2 to 5 millimeters long. The pen is as long as the flower tube. The club-shaped scars are triangular. The flowering time is August.

The more or less spherical fruits are 1 to 1.3 (rarely 0.9 to 1.5) centimeters long and 0.8 to 1.2 centimeters wide. They contain seeds 2 to 3 millimeters long and 3 to 4 millimeters wide.

Systematics and distribution

Agave pratensis is found in small grassy clearings along small streams in the Mexican state of Nayarit . The species is only known from the locality of the type .

The first description by Alwin Berger was published in 1915. Synonyms are Manfreda rubescens Rose (1903) and Polianthes rubescens (Rose) Shinners (1966).

The species belongs to the subgenus Manfreda and is assigned to the Manfreda group there.

proof

literature

Joachim Thiede: Agave pratensis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 57 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 190.
↑ Alwin Berger: The agaves. Contribution to a monograph . Gustav Fischer Verlag, Jena 1915, p. 37.
^ Joseph Nelson Rose: Studies of Mexican and Central American Plants - No. 3 . In: Contributions from the United States National Herbarium . Volume 8, Part 1, 1903, p. 22 (online) .
↑ Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 337 (online) .

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 190.

[2] Alwin Berger: The agaves. Contribution to a monograph . Gustav Fischer Verlag, Jena 1915, p. 37.

[3] Joseph Nelson Rose: Studies of Mexican and Central American Plants - No. 3 . In: Contributions from the United States National Herbarium . Volume 8, Part 1, 1903, p. 22 (online) .

[4] Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 337 (online) .