Agave scabra

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Agave scabra
Agave scabra 1.jpg

Agave scabra

Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave scabra
Scientific name
Agave scabra
Ortega

Agave scabra is a species of agave ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet scabra comes from Latin , means 'rough' and refers to the rough leaves of the species.

description

Agave scabra reproduces vegetatively through buds from the elongated rhizome , up to 7 centimeters in diameter . Their fibrous roots are semi-fleshy. The four to nine upright, broad or narrow linear-lanceolate, leathery to herbaceous leaves are usually deeply rutted and often slightly wavy on the lower parts. Its point is pointed and has a short point. The green, often glauke leaf blade is 37 to 77 (rarely 25.5 to 91) inches long and 1.6 to 4.8 (rarely 1 to 6.5) inches wide. Sometimes it is spotted auburn. The leaf veins on the underside protrude. Each leaf vein usually has a single row of papillary cells. The narrow leaf margins have a hyaline band and are whole or papillate. The remains of the leaf base disintegrate into coarse fibers and are 5 to 12 centimeters long.

The “eared” inflorescence reaches a height of 100 to 250 centimeters. The loose, elongated flower-bearing part is 23 to 47 (rarely 10 to 82) centimeters long and has 17 to 46 (rarely up to 58) flowering nodes. The rather succulent flowers are usually sessile. Only rarely are the lower or all of the flowers stalked. The narrow ellipsoidal ovary is 10 to 20 (rarely from 8) millimeters long. The green tepals are often tinged with brown on their underside. The narrow, funnel-shaped, slightly curved perigone tube is not clearly constricted above the ovary. It has a length of 13 to 38 (rarely from 9) millimeters. The elongated, recurved, golden-green or brownish upper parts of the perigone are 9 to 20 (rarely up to 23) millimeters long. Their inflated tips are shaped like a hood. The stylus rises above the flower tube by 24 to 37 (rarely up to 74) millimeters. The club-shaped scars are triangular. The flowering period extends from June to February, the main flowering period from August to September.

The elongated fruits are 1.8 to 2.9 inches long and 1.1 to 1.6 inches wide. They contain seeds 2 to 4 millimeters long and 4 to 5 millimeters wide.

Systematics and distribution

Agave scabra is common in Mexico , Guatemala , Honduras , El Salvador and possibly Nicaragua on rocky slopes in pine-oak forests and transition formations to tropical, deciduous forests and matorral .

The first description by Casimiro Gómez de Ortega was published in 1797. A nomenclature synonym is Manfreda scabra (Ortega) McVaugh (1989).

Included in the species as a synonym were Agave brachystachys Cav. (1802), Manfreda brachystachys (Cav.) Rose (1903), Polianthes brachystachys (Cav.) Shinners (1966); Agave spicata DC. (1813, nom. Illeg. ICBN -Article 53.1); Agave polyanthoides Schiede ex Schltdl. & Cham. (1831); Agave humilis M. Roem. (1847); Agave brachystachys var. Strictior Jacobi & CDBouché (1865); Agave sessiliflora Hemsl. (1880), Manfreda sessiliflora (Hemsl.) Matuda (1961); Agave langlassei Andr. (1901) ;; Manfreda oliveriana Rose (1903), Agave oliveriana (Rose) A. Berger (1915) and Polianthes oliveriana (Rose) Shinners (1966).

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

proof

literature

  • Joachim Thiede: Agave scabra . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 60-61 .

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. 214.
  2. Casimiro Gómez de Ortega: Novarum, aut Rariorum Plantarum Horti Reg. Botan. Matrix. Descriptionum Decades . 1797, p. 13 ( online ).
  3. Rogers McVaugh: Flora Novo-Galiciana. A descriptive account of the vascular plants of Western Mexico . Volume 15: Bromeliaceae to Dioscoreaceae, University of Michigan Herbarium, Ann Arbor 1989, p. 234.
  4. Descripción de las Plantas Volume 2, 1802, pp. 453-454 ( online ).
  5. ^ 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. 20 ( online ).
  6. Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 337 ( online ).
  7. ^ 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. 21 ( online ).
  8. Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 337 ( online ).

Web links

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