Tail sheet
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Tail leaf ( Dipcadi serotinum ) |
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| Dipcadi serotinum | ||||||||||||
| ( L. ) Medic. |
The tail blade ( Dipcadi serotinum ) is a plant species in the subfamily of Scilloideae within the family of asparagaceae (Asparagaceae).
description
Dipcadi serotinum grows as a perennial herbaceous plant and reaches heights of between 10 and 40 centimeters. This geophyte forms onions as persistence organs, which are egg-shaped, 20 to 35 × 15 to 30 (up to 60) mm in size and are surrounded by a paper-like tunic ("onion skin"). The two to four leaves standing together in a basal rosette are simple, linear, runny, 0.2 to 0.5 cm wide and with a length of 18 to 35 cm shorter than the inflorescence stem. The leaf surface is hairless and the leaf margin is smooth.
The inflorescence stem has a length of usually 20 to 70 (10 to 100) cm. Rarely 3 to mostly 10 to 16 flowers are in a loose, more or less one-sided, racemose inflorescence with 8 to 12 (up to 20) mm long, lanceolate bracts together. The flower stalks are 5 to 10 mm long. The hermaphroditic, threefold flowers are narrow, bell-shaped. There are two circles, each with three 12 to 18 mm long bracts . Their color is yellowish, brownish or greenish. A quarter or half of them have grown together at the bottom. The three outer bracts are curved backwards to the middle and the three inner ones are only the tip. There are two circles with three stamens each; their short stamens arise in the bloom tube and the anthers are 2 to 4 mm long. Three carpels are a dreikammerigen, 3 to 5 mm long ovary grown. There are about 20 ovules in each ovary chamber . The 3 to 4.5 mm long stylus ends in a three-lobed scar.
As a subspecies Dipcadi serotinum subsp. fulvum , autumn-blooming, generally stronger plants are separated. The flowering period extends from February to June or with Dipcadi serotinum subsp. fulvum from September to October.
The loculicidal capsule fruit is almost spherical to obovate with a diameter of 8 to 10 mm. The brownish-black, shiny seeds have narrow wings.
The number of chromosomes is 2n = 8 or 36.
Occurrence
The tail leaf occurs in the western Mediterranean as well as in Morocco and the Canary Islands . Rock corridors but also sand are preferred as a location. It is also found in Saudi Arabia, Pakistan, northern India, and Nepal.
Systematics
This species was first published in 1753 as Hyacinthus serotinus by Carl von Linné in Species Plantarum , p. 317. Friedrich Kasimir Medikus placed the species in the genus Dipcadi in 1790 .
Synonymous are Scilla sordida Salisb. (1796, nom. Superfl.), Lachenalia serotina (L.) Willd. (1799), Scilla serotina (L.) Ker Gawl. (1805, nom. Illeg.), Uropetalon serotinum (L.) Ker Gawl. (1817), Zuccangnia serotina (L.) Dennst. (1820), Agraphis serotina (L.) Heynh. (1846), and Tricharis serotina (L.) Salisb. (1866, nom. Inval.) And Albuca minor Gled. (1796, nom. Illeg.).
One can differentiate between the following varieties:
- Dipcadi serotinum var. Serotinum : It occurs from the Mediterranean region to Saudi Arabia and from the Himalayas to India.
- Dipcadi serotinum var. Fulvum (Cav.) Ball (Is considered by some authors as a subspecies Dipcadi serotinum subsp. Fulvum (Cav.) K. Richt. , Basionym: Hyacinthus fulvus Cav. ): It comes from the Canary Islands, in Morocco, Algeria and Spain.
literature
- SI Ali: Dipcadi in the Flora of Pakistan : Dipcadi serotinum - Online. (Section Description and Occurrence)
- Schönfelder: Kosmos Atlas Mediterranean and Canary Islands flora . Stuttgart 2002, ISBN 3-440-09361-1 .
Individual evidence
- ^ Tropicos. [1]
- ↑ Carl von Linné: Species Plantarum , p. 317 scanned in at biodiversitylibrary.org.
- ↑ Historia et Commentationes Academiae Electoralis Scientiarum et Elegantiorum Litterarum Theodoro-Palatinae . Volume 6, Mannheim 1790, p. 431 ( online ).
- ^ Dipcadi serotinum . In: R. Govaerts: World Checklist of Asparagaceae . Royal Botanic Gardens, Kew (accessed April 8, 2013).
- ↑ a b c Rafaël Govaerts (Ed.): Dipcadi - data sheet at World Checklist of Selected Plant Families of the Board of Trustees of the Royal Botanic Gardens, Kew. Last accessed on September 1, 2016.
