Agave longiflora
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Agave longiflora |
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| ( Rose ) GDRowley |
Agave longiflora is a species of plant from the genus of agaves ( Agave ) in the subfamily of the agave family (Agavoideae). The specific epithet longiflora is derived from the Latin words longus for 'long' and -florus for 'blooming' and refers to the total size of the flowers.
description
Agave longiflora has rhizomes up to 6.5 centimeters long and 2 centimeters wide. Their roots are fleshy. The three to seven (rarely up to 15) lanceolate leaves are fleshy and runny. Their point is pointed and has a medium-sized attached point. The green leaf blade is up to 26.5 centimeters long and 1.4 centimeters (in culture up to 2 centimeters) wide. The whole leaf is covered with dark green or brown spots. At the leaf margins there are distant, cartilaginous and sometimes knocked back teeth. The leaf bases cover the plant base and are 2 to 5 inches long.
The "eared" inflorescence reaches a height of up to 50 centimeters (in culture of up to 96 centimeters). The flower-bearing part is 8 to 20 centimeters long (in culture up to 35 centimeters) and bears ten to 21 densely or loosely arranged, sitting, upright flowers . The ellipsoid ovary is 4 to 6 millimeters long. The straight, narrow funnel-shaped perigone tube has a length of 23 to 36 millimeters. The elongated, rolled back, blunt tip perigone lobes are 8 to 14 (rarely up to 19) millimeters long and have a small tuft of hair. The very short stamens are attached to the mouth of the perigone tube. The anthers are 5 to 6 millimeters long, the stylus does not protrude from the perigon tube. The trilobal scars are papillate . The flowering time is September.
The depressed-spherical fruits are 0.9 to 1 centimeter long and 1 to 1.3 centimeters wide. They contain seeds 3 millimeters long and 4 millimeters wide.
Systematics and distribution
Agave longiflora is common in the United States in the state of Texas and in the Mexican state of Tamaulipas on loamy slopes, dry, gravelly hills and in the prairie on sandy loam over hardened lime ("caliche").
The first description as Runyonia longiflora by Joseph Nelson Rose was published in 1922. Gordon Douglas Rowley placed the species in the genus Agave in 1977 .
Manfreda longiflora (Rose) Verh.-Will is a nomenclature synonym . (1975). Further synonyms are Runyonia tubiflora Rose (in schedula, without year, nom. Inval. ICBN -Article 29.1), Runyonia tenuiflora Rose (in schedula, without year, nom. Inval. ICBN -Article 29.1) and Polianthes runyonii Shinners (1966).
The species belongs to the subgenus Manfreda and is assigned to the Manfreda group there.
proof
literature
- Joachim Thiede: Agave longiflora . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 42-43 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , pp. 139-140.
- ↑ Joseph Nelson Rose: Runyonia longiflora. Runyon's Huaco . In: Addisonia . Volume 7, 1922, pp. 39-40, plate 244 (online) .
- ^ Repertorium Plantarum Succulentarum . Number 26, 1977, p. 4.
- ↑ Baileya . Volume 19, 1975, p. 163.
- ↑ Lloyd Herbert Shinners: Texas Polianthes, including Manfreda (Agave subgenus Manfreda) and Runyonia (Agavaceae) . In: Sida . Volume 2, Number 4, 1966, p. 335 (online) .