Pinguicula primuliflora
| Pinguicula primuliflora | ||||||||||||
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Pinguicula primuliflora in culture |
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| Scientific name | ||||||||||||
| Pinguicula primuliflora | ||||||||||||
| CEWood & RKGodfrey |
Pinguicula primuliflora is a carnivorous plant belonging to the genus of fatty herbs ( Pinguicula ). The species is native to the southeastern United States. Its decorative, multi-colored flower , reminiscent of the flower of a primrose, isstriking.
description
Habitus
Pinguicula primuliflora forms a native rosette of eight to sixteen leaves with numerous simple, short, thread-like roots. The fleshy leaves are oblong-round, they reach a length of 40 to 80 (rarely 25 to 90) millimeters and a width of 10 to 20 (5 to 25) millimeters. A hibernacle for wintering is missing.
Flowers and fruits
Flowering time is between February and April. The two to four (one to six) erect inflorescence axes per plant are 90 to 170 (80 to 280) millimeters long and have a single terminal flower.
The flowers, including the spur, reach a length between 17 and 24 (15 to 26) millimeters. The upper sepal is lobed in three parts, the broad ovoid-oblong lobes are rounded at the extreme end, 4 to 6 millimeters long and 2 to 3 millimeters wide. The lower sepal is in two parts, the broad ovoid-triangular lobes are rounded at the extreme end and about 3 millimeters long. The flatly spreading petals are white and purple to sky blue in color and have a yellow throat spot, the lobes of the upper and lower petals are almost identical in shape, inversely ovoid to approximately round, 10 to 13 (rarely from 8) millimeters long and 10 to 14 millimeters wide , the lower lobed in three parts. The palate is pointed cone-shaped and clearly protrudes from the throat. The approximately cylindrical corolla tube is hairy inside, 4 to 6 (rarely up to 8) millimeters long and 3 to 5 millimeters wide. The almost cylindrical and barely hairy spur , which starts at an obtuse angle of 135 to 150 degrees, reaches a length of 3 to 4 (2 to 5) millimeters.
The stamens are up to 2 millimeters long and whitish, the anthers are yellow. The ovary is almost round, the white stigma is two-lobed.
The flattened, round capsule fruits reach a diameter of around 5 millimeters. The numerous seeds are 0.5 to 0.7 millimeters long. The number of chromosomes is 2n = 32.
Distribution, habitat, endangerment
Pinguicula primuliflora is native to the southeastern United States (Mississippi, Alabama, Georgia, Florida). It settles there in damp locations without standing moisture, also in a shaded position, and rarely also in damp, sandy soils of the pine lands . Depending on the location, it can be found in association with peat moss and Pallavicinia species or in ditches with Eriocaulon , sundew and moss ferns .
Systematics
Pinguicula primuliflora was first described in 1957 by Carroll Emory Wood and Robert Kenneth Godfrey , the specific epithet refers to the typical primrose-like flower. In his monograph on the genus, Casper placed it in the Isoloba section .
literature
- S. Jost Casper : Monograph of the genus Pinguicula L. (= Bibliotheca Botanica. H. 127/128, ISSN 0067-7892 ). Schweizerbart, Stuttgart 1966, pp. 82–84.
