Agave potosina

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Agave potosina
Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave potosina
Scientific name
Agave potosina
BLRob. & Greenm.

Agave potosina is a type of plant from the genus Agave ( Agave ) in the subfamily of the Agave family (Agavoideae). The specific epithet potosina refers to the distribution area in the Mexican state of San Luis Potosí .

description

Agave potosina forms rhizomes 2 to 3.4 centimeters long and up to 1.1 centimeters wide. Their roots are very fleshy. The two to seven fleshy, bent back, lanceolate leaves are runny. Your leaf blade is up to 16 inches long and 1.4 inches wide. The leaf margins are covered with irregular, horny teeth. These are coarse, wide and mostly truncated. They are blunt and incised at the tip and occasionally curved backwards. The teeth are 2 to 5 (rarely up to 14) millimeters apart. The remnants of the leaf base are common and cover the plant base. They are 4 to 9.5 inches long.

The "eared" inflorescence reaches a height of 24 to 54 (rarely 15.5 to 75) centimeters. The semi-dense to pointy open flower-bearing part is 9 to 29.5 centimeters long and carries seven to 31 knots. The rarely paired, upright flowers are green. The ellipsoid ovary is 3 to 6 millimeters long. The straight perigone tube is constricted over the ovary. It has a length of 6 to 14 millimeters. Their upright tips are 2 to 5 millimeters long. The stamens are of different lengths, but belong to two groups of lengths. They are attached to the base or in the middle of the flower tube and then protrude above the flower tube. The pen is as long as the flower tube. The club-shaped scars are triangular. The flowering time is June.

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 potosina is common in the Mexican states of Coahuila , San Luis Potosí and Zacatecas in dry deserts and on limestone mesas .

The first description by Benjamin Lincoln Robinson and Jesse More Greenman was published in 1894.

Nomenclatory synonyms are Manfreda potosina (BLRob. & Greenm.) Rose (1903) and Polianthes potosina (BLRob. & Greenm.) Shinners (1966). Delpinoa gracillima Ross (1897) is also included in the species .

Agave potosina belongs to the subgenus Manfreda and is assigned to the Manfreda group.

proof

literature

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

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. 190.
  2. ^ BL Robinson, JM Greenman: Further New and Imperfectly Known Plants Collected in Mexico by CG Pringle in the Summer of 1893 . In: Proceedings of the American Academy of Arts and Sciences . Volume 29, 1894, p. 393 (online) .
  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. 18 (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) .
  5. ^ Bollettino del R. Orto botanico e Giardino coloniale di Palermo . Volume 1, 1898, p. 117.

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