Agave michoacana

from Wikipedia, the free encyclopedia
Agave michoacana
Systematics
Order : Asparagales (Asparagales)
Family : Asparagaceae (Asparagaceae)
Subfamily : Agave family (Agavoideae)
Genre : Agaves ( agave )
Subgenus : Manfreda
Type : Agave michoacana
Scientific name
Agave michoacana
( M. Cedano , R. Delgad. & Enciso ) Thiede & Eggli

Agave michoacana is a species of the agave genus( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet michoacana refers to the occurrence of the species in the Mexican state of Michoacán .

description

Agave michoacana grows upright. Nothing is known about their roots . The four to ten linear leaves are long and pointed. Your leaf blade is 27.7 to 63.6 inches long and 3.5 to 10 millimeters wide. The leaf margins and the keel are papilose . The leaves on the shaft are triangular-linear and taper to a point. All the leaves are yellowish green and bare. Foliage leaves at the base arise from an egg-shaped, white onion that is 2 centimeters long and 1 to 2 centimeters wide , with its tips disintegrating into fibers .

The inflorescence reaches a height of 40 to 120 centimeters. It consists of up to three groups of sitting flowers arranged in pairs . The cylindrical ovary is 8.5 to 10 millimeters long. The tepals are white. The flower tube, which is erect at its base, gradually widens in the upper part. The flower tube is 80 to 100 millimeters long and measures 3 to 5 millimeters in diameter in the middle. Their triangular tips are pointed, 10 millimeters long and 5 to 6 millimeters wide. The anthers have a length of 6 to 11 millimeters. The columnar stylus is slightly triangular, the scar lobes elongated, blunt at the tips and turned back. They are 1.5 to 2 millimeters long. Flowering period extends from July to September.

The ellipsoidal fruits are 2.3 to 2.5 inches long and 1.4 to 1.5 inches wide. They contain flattened, obovate-club-shaped, asymmetrical seeds 4.2 millimeters in length.

Systematics and distribution

Agave michoacana is common in the Mexican state of Michoacán on wet meadows at altitudes of 2200 to 2700 meters.

The first description as Polianthes michoacana by Martha Cedano Maldonado , Raymundo Ramírez Delgadillo and Ildefonso Enciso Padilla was published in 1995. Joachim Thiede and Urs Eggli placed the species in the genus Agave in 1999 .

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

proof

literature

  • Joachim Thiede: Agave michoacana . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 46 .

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. 153.
  2. ↑ M. Cedano Maldonado, R. Ramirez Delgadillo, I. Enciso Padilla: Una nueva especie de Polianthes (Agavaceae) del estado de Michoacan y ota complementaria sobre Polianthes longiflora Rose . In: Boletín Informativo. Instituto de Botánica, Universidad de Guadalajara . Volume 1, number 7, 1993 publ. 1995, pp. 521-530.
  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) .

Web links

  • Holotype of Polianthes michoacana in the Herbario del Centro Regional del Bajío