Agave sileri

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Agave sileri
Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave sileri
Scientific name
Agave sileri
( Verh.-Will. ) Thiede & Eggli

Agave sileri is a species of plant from the genus Agave ( Agave ) in the subfamily of the Agave family (Agavoideae). The specific epithet sileri honors the American plant lover Major Arnold M. Siler from Corpus Christi in Texas, who collected the type species.

description

Agave sileri reproduces vegetatively through buds from the axils of the leaves of the rosettes or from buds from the spherical rhizome . Their roots are fleshy. The spread out, ovate-lanceolate, succulent, brittle leaves are runny and wavy or flat. They are long narrowed towards their tip. Their point is pointed and has a medium-sized point. The light green, spotted, except for the spots glauke leaf blade is 25 to 29 (rarely from 14) centimeters long and 2.2 to 4.8 centimeters wide. The large, round to elliptical spots are darker green or brown and usually flow together. The leaf margins have a cartilaginous band and are tiny serrated. The irregularly arranged, often knocked back teeth are of different sizes. The remnants of the leaf base are membranous and do not disintegrate into fibers.

The "eared" inflorescence reaches a height of 240 to 260 centimeters. The dense flower-bearing part is 28 to 39.5 centimeters long and carries 27 to 46 (rarely up to 81) seated, almost upright flowers . The ellipsoid ovary is 12 to 20 (rarely from 10) millimeters long. The tepals are glaucous green on the outside and golden green on the inside. The broad, bell-shaped, funnel-shaped flower tube has a length of 9 to 15 (rarely 7 to 22) millimeters. The elongated, bent back tips are 10 to 21 (rarely from 7) millimeters long. The straight stylus protrudes over the flower tube by 44 to 66 (rarely up to 95) millimeters. The club-shaped scars are triangular. The flowering period extends from April to July.

The elongated fruits are 2.3 to 3.1 inches long and 1.6 to 1.9 inches wide. They contain seeds 5 to 6 millimeters long and 5 millimeters wide.

Systematics and distribution

Agave sileri is common in open places on clay soil in the Mexican state of Tamaulipas .

The first description as Manfreda sileri by Susan Verhoek was published in 1978. Joachim Thiede and Urs Eggli placed the species in the genus Agave in 1999 . A nomenclature synonym is Manfreda variegata var. Sileri Verh.-Will. (1975, nom. Invalid ICBN -Article 29.1).

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

proof

literature

  • Joachim Thiede: Agave sileri . 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. 221.
  2. ^ Susan Verhoek: Two New Species and a New Combination in Manfreda (Agavaceae) . In: Brittonia . Volume 30, Number 2, 1978, pp. 165-171 (JSTOR) .
  3. ↑ Joachim Thiede, Urs Eggli: Inclusion of Manfreda Salisbury, Polianthes Linné and Prochnyanthes S. Watson in Agave Linné (Agavaceae) . In: Cacti and other succulents . Volume 50, Number 5, 1999, pp. 109-113 (online) .

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