Agave singuliflora

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

Agave singuliflora is a species of agave ( agave ) in the subfamily of agave plants (Agavoideae). The epithet singuliflora is derived from the Latin words singulus for, one alone 'and -florus for, -blütig' from.

description

Agave singuliflora forms rhizomes 1.7 centimeters long and 1.2 centimeters wide. Their roots are fleshy. The two to eight (rarely up to 14) spread, linear-lanceolate. semi-succulent leaves are runny. Their point is pointed and has a medium-sized point. The glauken , sometimes red gefleckelte at the base lamina is 17 to 34 centimeters long and 0.4 to 1.3 (rarely to 1.5) centimeters wide. The leaf margins show a narrow hyaline band. The remains of the leaf base are 4 to 8 inches long.

The "eared" inflorescence reaches a height of 45 to 116 centimeters. The open flower-bearing part is 5.2 to 28 (rarely up to 46) centimeters long and bears five to (rarely up to 16) mostly sessile, horizontal flowers . The lower or rarely all flowers are petiolate. The almost upright, ellipsoidal ovary is 4 to 10 millimeters long. It is at an acute angle to the flower axis. The tepals are green or green with brown lines on the lower parts. The narrow funnel-shaped, curved flower tube has a length of 15 to 23 (rarely up to 27) millimeters. Their mouth is directed downwards. The elongated, rolled back tips are 7 to 12 (rarely up to 18) millimeters long. The white stylus rises above the flower tube by 5 to 12 (rarely up to 15) millimeters. The club-shaped scars are deeply furrowed. The flowering period extends from late June to early October.

The spherical to elongated fruits are 1.5 to 2.3 inches long and 1.3 to 1.7 inches wide. They contain seeds 4 millimeters long and 3 millimeters wide.

Systematics and distribution

Agave debilis is common in the Mexican states of Chihuahua , Durango and Zacatecas on cool slopes in the region of the pine-oak forests at altitudes of 1675 to 2590 meters

The first description as Bravoa singuliflora by Sereno Watson was published in 1887. Alwin Berger placed the species in the genus Agave in 1915 . Nomenclatory synonyms are Manfreda singuliflora (S.Watson) Rose (1903) and Polianthes singuliflora (S.Watson) Shinners (1966).

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

proof

literature

  • Joachim Thiede: Agave singuliflora . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 63 .

Individual evidence

  1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 222.
  2. ^ Sereno Watson: Contributions to American Botany . In: Proceedings of the American Academy of Arts and Sciences . Volume 22, 1887, p. 879 ( online ).
  3. ↑ Alwin Berger: The agaves. Contribution to a monograph . Gustav Fischer Verlag, Jena 1915, p. 31.
  4. ^ 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. 16 ( online ).
  5. ↑ Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 337 ( online ).

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