Manfreda longiflora
Agave longiflora is a species of the genus Agave ( Agave ) in the subfamily of the agave ( Agavoideae ). The specific epithet is derived from the longiflora Latin words longus for long ' and - florus for, flourishing ' and refers to the total size of the flowers.
Description
Agave longiflora has rhizomes of up to 6.5 centimeters in length and 2 centimeters in width. Their roots are fleshy. The three to seven (rarely to 15) lanceolate leaves are fleshy and rinnig. Your tip is pointed and carries a medium-sized set translated Spitzchen. The green leaf blade is up to 26.5 inches long and 1.4 inches wide ( in culture to 2 centimeters). The whole fallen leaf is covered with dark green or brown spots. Are located at the leaf margins is far-removed, cartilaginous and sometimes recurved teeth. The base sheet covering the plant base and 2 to 5 inches long.
The " eared " inflorescence reaches a height of up to 50 centimeters ( in culture up to 96 centimeters). The flower-bearing part is 8 to 20 inches long ( in culture to 35 centimeters) and carries ten to 21 tightly or loosely asked, sitting upright flowers. The ellipsoidal ovary is 4 to 6 millimeters long. The straight, narrow funnel-shaped Perigonröhre has a length from 23 to 36 millimeters. The elongated, rolled back, blunt at the tip Perigonzipfel are 8-14 (rarely to 19 ) mm long and have a small tuft of hair. The very short stamens are attached to the mouth of the Perigonröhre. The anthers are 5-6 mm long, the style does not protrude from the Perigonröhre out. The three-lobed scars are papillat. The flowering time is September.
The depressed - spherical fruits are 0.9 to 1 inches long and 1 to 1.3 inches wide. They contain seeds of 3 mm length and 4 mm width.
Systematics and distribution
Agave longiflora is distributed in the United States in the state of Texas and the Mexican state of Tamaulipas on loamy slopes, dry, gravelly hills and in the plains on sandy loam over hardened lime ( " caliche ").
The first description as Runyonia longiflora by Joseph Nelson Rose was published in 1922. Gordon Douglas Rowley presented the type 1977 in the genus Agave.
A synonym is Manfreda longiflora nomenklatorisches (Rose) Ratio - Will. (1975). Other 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 Manfreda, where it is the group assigned.