Serissa
Junischnee ( Serissa japonica ) flowers
The Junischnee ( Serissa japonica) is a species of the genus Serissa in the family of Rubiaceae ( Rubiaceae ). The species is native to Japan in subtropical areas and wet meadows in Southeast Asia, from India to China, is also widely held and sold as bonsai. The German name " Snow in June " or " tree of a thousand stars " refers to the many small, white funnel- shaped flowers that the plant forms the main flowering period.
- 4.1 Literature
- 4.2 Notes and references
Description
Vegetative characteristics
The Junischnee is up to 80 cm tall shrub with 0.4 to 1.7 mm thick branches, where opposite in two longitudinal lines are 0.1 to 0.3 mm long trichomes. The plant parts give the crushing or grinding off an unpleasant odor.
The leaves are opposite or in whorls can also appear due to shortening of the internodes. You are almost sessile and do not form Domatien. The leaf blade is elliptical-shaped to lanceolate or obovate, 5-20 mm long and 2-7 mm wide. The tip is usually pointed, the base is wedge-shaped, decurrent on the petiole. From the main vein of the leaf to go on each side of two to four lateral veins. In some varieties the leaves are variegated.
The stipules are fused into a broad, occupied with awns, standing between the petioles vagina. They are 0.5 to 1 mm long, the guard hairs have a length of up to 3 mm.
Inflorescences and flowers
The flowers are terminal, singly or in groups of a few flowers. They are small, radial symmetry and usually five, sometimes four or sechszählig. The flower cup ( hypanthium ) is inversely conical in shape and covered with 1 mm long and triangular calyx lobes. The crown is first dyed pink in the bud, but the flowering white, the corolla is cup-shaped and 4-5 mm long. The Kronlappen are 2 to 4 mm long. The inside of the crown is hairy. The stamens are fused with the crown. The scar is two-lobed and hairy, the ovary is zweikammerig with one ovule per chamber.
Fruit and seeds
The fruits are capsular fruits with a length of about 2 mm, calyx lobes are resistant to the fruit. The fruits contain two elliptical seeds, whose cross section is semi-circular.
Systematics and Botanical History
The genus Serissa is sometimes regarded as monotypic with Serissa japonicum is the only way. However, the floras of the Asian region differ mostly two or three kinds - in addition Serissa Serissa japonica also serissoides.
The species was first japonicum in 1780 by Carl Peter Thunberg as Lycium, described shortly thereafter ( 1782 ) by Carl Linnaeus Jr. as Lycium foetidum. 1792 moved Thunberg even the kind in the genus Serissa and thus published the currently valid name Serissa japonica. Another synonym is Serissa foetida ( Linn. f ) Lam.
Use
In areas such as southern China, Indonesia and Japan, the Serissa is often designed as a bonsai. Your average high compatibility and growth happiness makes them attractive for beginners there. It is often imported from there to Europe and offered as a bonsai. In temperate latitudes, however, is very difficult to cultivate. In the winter they have due to their intolerance of frost brought into the house and are suffering from lack of light and low humidity. Therefore it is not suitable in temperate latitudes for beginners.