Agave platyphylla

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

Agave platyphylla is a species of the agave genus( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet platyphylla is derived from the Greek words platys for 'flat' and phyllon for 'leaf'.

description

Agave platyphylla is glabrous and has fleshy, tapered roots 3 to 7 centimeters in length. The two to ten leaves lying flat on the ground stand together in a basal rosette. They are linear-elliptical to narrowly ovate and pointed long at the tip. Their leaf blades are 7 to 15 inches long and 1.2 to 3 inches wide. The narrow leaf margins are smooth and hyaline . The rigid maroon or yellowish leaf bases are brick-shaped, broadly widened and form a narrow, egg-shaped bulb .

The "eared" inflorescence reaches a height of 40 to 70 centimeters. The flower-bearing part is 10 to 20 centimeters long and carries up to ten flower-bearing nodes. The essentially sessile flowers become horizontal or bent over time. The ellipsoid ovary is (almost) upright to the anthesis . The tepals are white or cream colored and tinted pink at their base. As they age, they first turn pink and eventually deep pink. The 13 to 16 millimeter long flower tube is strongly curved outwards. It has a crooked mouth. Near its base it measures 1.5 millimeters in diameter, at the point where the stamens attach it is 2.5 to 3 millimeters. The almost identical lobes are rounded or ovate and 2 to 2.5 (rarely up to 3) millimeters long. The stamens do not protrude from the flower tube. The stylus has three flat and blunt tips that are 1 to 1.3 millimeters long. When fully grown, it protrudes slightly from the flower tube. The flowering period extends from August to November.

The broadly ellipsoidal to almost spherical fruits are about 7 to 10 millimeters long and just as wide. They contain seeds 2.5 to 3 millimeters in length.

Systematics and distribution

Agave platyphylla is common in the Mexican states of Durango , Zacatecas and Jalisco in grasslands, on rocky mesas and on hill sides in pine-oak forests at altitudes of 1500 to 2500 meters.

The first description as Polianthes platyphylla by Joseph Nelson Rose was published in 1903. 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 platyphylla . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 55-56 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 187.
^ 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. 11 (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) .

Web links

Herbarium evidence of Polianthes platyphylla

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 187.

[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. 11 (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) .