Agave stictata
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| Thiede & Eggli |
Agave stictata is a species of plant from the genus agaves ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet stictata comes from the Greek , means 'colorfully dotted' and refers to the spotted leaves of the species.
description
Agave stictata forms rhizomes from 1.2 to 2.5 (rarely up to 3.5) centimeters long and 0.7 to 1.5 centimeters wide. Their fleshy to fibrous roots often radiate horizontally from the rhizome. The rosette base is surrounded by the fibrous leaf bases, which form an egg-shaped, onion-like, subterranean part 3.5 to 5.5 inches long and 0.8 to 1.3 inches wide. The two to six narrow to wide (wrongly) lanceolate leaves are narrowed towards their base. Its point is pointed and has a short point. The only slightly runny, leathery, wavy leaf blade is 9 to 26 centimeters long and 1 to 3.5 (rarely 0.8 to 4.5) centimeters wide. The underside of the leaf is lighter green. Large, elliptical, dark green or brown spots are densely scattered on both sides. Both sides of the leaf blade are densely downy-haired with straight, simple 0.6 to 0.8 millimeter long hairs . The entire margins of the leaf have a narrow hyaline band. The remains of the leaf bases are membranous and 1.8 to 4 (rarely up to 4.5) centimeters long.
The "eared" inflorescence reaches a height of 21 to 96 centimeters. The loose flower-bearing part is 7 to 25.5 (rarely up to 11) centimeters long and bears four to 22 normally sessile (rarely short-stalked) flowers . The ellipsoid ovary is 5 to 12 millimeters long. The straight perigone tube is not constricted over the ovary. It has a length of 10 to 19 millimeters and is about 4 millimeters wide in the middle. The elongated, rolled back tips are 6 to 11 millimeters long. The stylus protrudes over the flower tube by 9 to 17 (rarely 19) millimeters. The club-shaped scars are triangular. The flowering period extends from mid-July to mid-September.
The almost spherical to elongated fruits are 1.2 to 1. centimeters long and 0.8 to 1.1 centimeters wide. They contain seeds 3 to 4 millimeters long and 2 to 3 millimeters wide.
Systematics and distribution
Agave stictata is common in the Mexican states of México and Guerrero on rocky slopes and moist, shady spots in oak forests at altitudes of 1370 to 1830 meters.
The first description as Polianthes maculata by Carl Friedrich Philipp von Martius was published in 1831. 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 maculata rule (1856) already existed.
A synonym is Manfreda maculata (Mart.) Rose (1903).
The species belongs to the subgenus Manfreda and is assigned to the Manfreda group there.
proof
literature
- Joachim Thiede: Agave stictata . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 65 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 229.
- ^ Carl Friedrich Philipp von Martius: Amoenitates Botanicae Monacenses. Selection of strange plants from the K. botanical garden in Munich in illustrations and descriptions, together with instructions taking into account their culture . 1831, p. 19, plate 13.
- ↑ 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) .
- ^ 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 ).
Web links
- Photo of Agave stictata