Beschorneria septentrionalis
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Beschorneria septentrionalis |
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| García-Mend. |
Beschorneria septentrionalis is a species of the genus Beschorneria in the subfamily of the agave family (Agavoideae). The specific epithet septentrionalis comes from Latin , means 'north' and refers to the range of the species in relation to related taxa.
description
Beschorneria septentrionalis grows stemless and rhizomatous . Their rosettes form clumps . The ten to 20 bent back, inverted lanceolate leaves that expand at their base are bare on both sides. The bright green leaf blade is 70 to 90 (rarely up to 105) centimeters long and 6 to 9 (rarely 5 to 13) centimeters wide. At the basal constriction it is 1.8 to 2.5 (rarely up to 3.3) centimeters wide. The tip is tapered short. The leaf margins are finely serrated and have one to three (rarely four) teeth per millimeter.
The zymos-paniculate inflorescence reaches a height of 150 to 250 centimeters. It consists of four to seven partial inflorescences of 9 to 25 (rarely up to 50) centimeters in length with a total of 90 to 130 flowers . The flower stem is carmine red. The four to five carmine-red, inverted lanceolate bracts on the flower stem are up to 30 centimeters long. The twelve to 30 fertile bracts are reddish to translucent and lanceolate to triangular. The 55 to 60 (rarely 50 to 65) millimeter long flowers are two to four together. Your flower stalk is 3.5 to 4.5 (rarely 1 to 6) millimeters long. The carmine-red linear-oblong to oblong spatulate tepals have a length of 25 to 30 millimeters and are 2 to 8 millimeters wide. They are papillae on the inside and bare on the outside. Their tip and edges are yellowish in color. The papillary, awl-like stamens are 2 to 4 millimeters shorter than the tepals. The elongated elliptical anthers are 5 to 7 millimeters long. The slightly sechsfurchige, ruby ovary is 25 to 30 (rarely to 33) millimeters in length and 2 to 8 millimeters wide.
The egg-shaped fruits are 35 to 50 (rarely up to 65) millimeters long and 25 to 35 millimeters wide. They contain shiny black seeds .
Systematics and distribution
Beschorneria septentrionalis is distributed in the Mexican state of Tamaulipas in cloud forests at altitudes of over 1,400 meters.
The first description by Abisai Josue García-Mendoza was published in 1988.
proof
literature
- Joachim Thiede: Beschorneria septentrionalis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 76-77 .
Individual evidence
- ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 219.
- ↑ Cactaceas y Suculentas Mexicanas . Volume 33, Numme 1, 1988, p. 3.
