Pinguicula ramosa

Pinguicula ramosa on Koshin - mountain

Pinguicula ramosa is a carnivorous plant in the genus of fat herbs ( Pinguicula ). It is found only on a mountain in Japan, its Japanese name isコオシンソウ.

Description

Habit

Pinguicula ramosa forms a basal rosette of five to seven sheets with plenty of fine thread-like roots. The fleshy leaves are short stalked, pale green, spatulate to elliptic, blunt and rolled the sides in the end. They reach a length of 7-20 mm and a width of 5 to 10 millimeters. For winter it forms a very small Hibernakel from which it casts back in April.

Flowers

The 15 to 90 millimeters long, upright and glandular- hairy pedicels are ( unique in the genus ) branches at the base and wear in June / July, two to three each terminal zygomorphe flowers. Supporting and bracteoles absent. The flowers reach a length 7-11 mm. The upper sepal is deeply lobed three parts, each lobe is 2 millimeters long. The lower sepal is in two parts, the lobes ovate - lanceolate, and are staffed with glands and up to 2.5 mm long. The corolla is purple or white, the upper petal is in two parts and 1.5 to 2 mm long, the lower lobed three parts. The middle lobe of the lower sepal is strikingly large ( 3-4 mm long) and centrally emarginate deep, the lateral lobes about 1.5 mm long. The tapered, slender spur reaches a length of 3-4 millimeters. The stamens are bent around the ovary.

The reverse- ovoid to elliptical capsule fruits reach a length of 2-4 mm and a width of 2 to 3 millimeters. The seeds are ellipsoid, brown, about 1 mm long and 0.5 mm wide. The chromosome number is 2n = 18 (also a unique feature in the genus ).

Distribution, habitat, endangerment

Pinguicula ramosa grows endemic to the mountains of Nikko National Park, mainly at Mount Koshin, at altitudes 1500-1900 m. It lives only in weathered granite rocks in damp, foggy spots in semi -shady to shady location. Occasionally, it is associated with Saxifraga fortunei and Primula modesta.

Pinguicula ramosa is severely threatened by the - from acid rain and mountain climbers carried decay of granite rocks and deer that eat the plants. Despite legal protection, the survival of the species is currently considered not secure.

System

Pinguicula ramosa was first described in 1890 by Manabu Miyoshi. 1953 classified Michio Tamura them as pure variety to Pinguicula villosa one, this classification but not prevailed. In his monograph on the genus Casper placed them together with the Alpine - fat (Pinguicula alpina), Pinguicula Pinguicula algida and variegata in the section micranthus, the latter is considered to be their closest relatives.

Swell

• S. J. Casper: Monograph of the genus Pinguicula. In: Bibliotheca Botanica. Bulletin 127/128, p. 17, 1966, Stuttgart
• Y. Kadono: Pinguicula ramosa, in: Flora of Japan, online, accessed August 11, 2007
• Michiaki Mabuchi: Pinguicula ramosa
• Information on the type of Pinguicula.org

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