Agave dolichantha

Agave dolichantha
Systematics
Order :	Asparagales (Asparagales)
Family :	Asparagaceae (Asparagaceae)
Subfamily :	Agave family (Agavoideae)
Genre :	Agaves ( agave )
Subgenus :	Manfreda
Type :	Agave dolichantha
Scientific name
	Agave dolichantha
	Thiede & Eggli

Agave dolichantha is a species of agave ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet dolichantha is derived from the Greek words dolichos for 'long' and anthos for 'blossom'.

description

Agave dolichantha is bare. The leaves standing together in a basal rosette are not described. The tips of the onion skins are coarsely fibrous.

The "eared" inflorescence probably reaches a height of about 100 centimeters. The two to eight flowers are clearly separated from each other along the axis in up to four pairs or two to four in a terminal "cluster". The shaft is spotted a little red. The sitting flowers smell during the anthesis . The ovary is 9 to 16 (rarely up to 19) millimeters long. In the flower bud which are tepals pink, while anthesis they are tinged with white or purple. The 60 to 100 millimeter long flower tube is (almost) upright in its basal part, narrowly tubular and measures 2 millimeters in diameter. It gradually widens in a funnel shape and is widened by half or a third in the upper part. From the middle at or above the flower tube is bent outwards. Your mouth is crooked. The elliptical tips are 15 to 20 (rarely up to 26) millimeters long. The anthers barely protrude from the flower tube. The 80 to 100 millimeter long stylus has flat tips that do not protrude from the flower tube.

Nothing is known about the fruits and seeds .

Systematics and distribution

Agave dolichantha is common in the Mexican state of Jalisco . It was only rediscovered in nature in the mid-1990s. Until then, it was only known due to incomplete copies offered for sale.

The first description as Polianthes longiflora by Joseph Nelson Rose was published in 1903. Joachim Thiede and Urs Eggli placed the species in the genus Agave in 1999 . They had to choose a new name because the species Agave longiflora (Rose) GDRowley (1977) already existed.

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

proof

literature

Joachim Thiede: Agave dolichantha . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 26-27 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 68.
^ 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. 10 (online) .
↑ 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) .
^ Repertorium Plantarum Succulentarum . Number 26, 1977, p. 4.

Web links

Herbarium specimens of Polianthes longiflora

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 68.

[2] 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. 10 (online) .

[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) .

[4] Repertorium Plantarum Succulentarum . Number 26, 1977, p. 4.