Allioni primrose
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Allioni primrose ( Primula allionii ) |
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| Primula allionii | ||||||||||||
| Loisel. |
The Allioni Primrose ( Primula allionii ) is a plant from the family of the Primrose family (Primulaceae). It occurs in the Alps of northwestern Italy and southeastern France .
description
The allioni primrose, which grows individually or in groups, is a small, perennial , herbaceous plant and measures around 8 to 10 (up to 20) centimeters in diameter.
The approximately 3 to 5 centimeters long leaves stand together in a basal rosette . The egg-shaped or egg-shaped-elongated and green-grayish leaf blades gradually taper to the stalk and are persistent, so that the dried up old leaves enclose the freshly forming rosette. The leaves are dense, downy, glandular and sticky hairy ( trichomes ). The leaf margin is serrated or entire.
On short inflorescence shafts, which can be lower than the leaf rosette, there are dold-like inflorescences . The hermaphrodite flowers are radially symmetrical and five-fold. The five sepals , densely covered with sticky hair, are fused and end with oval-blunt calyx teeth. The five petals are fused. The corolla tube is longer than the chalice. The bright pink crown has a white eye and a diameter of about 2 to 3 centimeters. The five flattened corolla lobes are slightly or clearly notched.
The long-life calyx is longer than the spherical capsule fruit , which opens with lanceolate, pointed capsule teeth when ripe.
The number of chromosomes is 2n = about 66.
Occurrence
The Allioni primrose occurs in rocky regions of the western Alps of northwestern Italy and southeastern France.
Systematics
The first description of Primula allionii was made in 1809 by Jean-Louis-Auguste Loiseleur-Deslongchamps in Journal de Botanique (Desvaux), Volume 2, page 262. Primula allionii belongs to subsection Euauricula from the section Auricula in the subgenus Auriculastrum within the genus Primula .
literature
- M.Grenier & MAPeyre: Primula Allionii . In: Bulletin de la Societé botanique de France . tape 16 , 1869, pp. LIV (French, botanicus.org [accessed June 7, 2011] digitized in Biodiversity Heritage Library).
- CF Ball: The Gardeners' chronicle . A weekly illustrated Journal of Horticulture and allied Subjects. tape 53 , Ser. 3. London February 8, 1913, Primula Allionii - report on occurrences in Italy, p. 84 (English, biodiversitylibrary.org [accessed June 7, 2011] digitized in Biodiversity Heritage Library).
Individual evidence
- ↑ Primula allionii at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Taxon: Primula allionii Loisel. in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved June 8, 2011.
Web links
- Primula allionii Loisel. In: Tela Botanica Le réseau de la botanique francophone. Association TELA BOTANICA Institut de Botanique, accessed on June 8, 2011 (French).