Soleirolia

Bob ( Soleirolia soleirolii )

The bob ( Soleirolia soleirolii, Syn. Helxine soleirolii Req ), also called Bubiköpfchen, the only species of the plant genus Soleirolia within the family of the Nettle family is ( Urticaceae ). It comes from Sardinia and Corsica, and is used as a houseplant.

• 4.1 Care
• 4.2 Breeding Forms

• 5.1 Notes and references

Description

Appearance and leaf

The bobbed hair grows as a creeping, perennial herbaceous plant. It grows rapidly and forms dense cushions or pillows with plant height 2-25 cm. The above-ground parts of plants are sparse to dense fluffy covered with crescent-shaped and straight hair, but not as in some species of the family of nettle plants with stinging hairs. The delicate, thread- thin, glassy translucent, branched stems can reach lengths of up to 50 cm and can take root at the nodes ( more nodes ).

The alternate arranged leaves have simple leaf blades, which are circular and oblong, and at their base with a clearly unequal side length of 3 to 8 mm and a width of 2 to 4 mm. The leaf margin is smooth. The leaves of the natural form are lush green. The cystoliths are extended linear. There are no stipules present.

Flower and Fruit

Soleirolia soleirolii is monoecious getrenntgeschlechtig ( monoecious ). The pendent inflorescences each containing only one bloom. In the lower part of the stem at the top of female and male flowers are formed. The male flowers contain four free bloom and four stamens and a sterile inverted egg-shaped stamp. The four bracts of female flowers are grown and have no hair. In the female flowers the thin stylus are not durable and no staminodes included.

The fitting, shiny, light brown achene is at a length of 0.8 to 0.9 and a diameter of about 0.6 mm symmetrical, ovate with a pointed top. The achene is tightly envelop of the tough outer leaves that form korkige three wings and are covered with fine hairs and hakigen of durable, trockenhäutigen bloom cladding.

Chromosome number

The basic chromosome number is x = 10

Dissemination

Soleirolia soleirolii originates from the Mediterranean islands of Sardinia and Corsica. There has a subtropical climate, with warm and dry summers and mild and wet winters. Soleirolia soleirolii grows in the shade of trees, especially like on good forest floor. They also occur in wall joints, between stepping stones and rocks.

System

The first description was in 1825 as Helxine soleirolii by the French botanist Esprit Requiems in Annales des Sciences Naturelles (Paris ), 5, pp. 384 Requiems so honored Joseph Francois Soleirol, who had collected the plant at Cervione Corsica. Since the name was already taken Helxine Linnaeus for an entirely different plant, namely a representative of the Knotweed family, had to get a new genus name of the bob. This was created by the French botanist Charles Gaudichaud -Beaupré in 1830 and also honored so Soleirol. The combination Soleirolia finally soleirolii was formed by James Edgar Dandy in 1965, in Feddes Repertorium, vol 70, p 4. Because of the different endings of the genus name and specific epithet is considered formally no Tautonym and therefore admissible under the rules of botanical nomenclature. Soleirolia soleirolii is the only species of the genus Soleirolia within the Urticaceae family.

Culture as a houseplant

Care

Bobbed hair prefer a bright to semi- shady place out of direct sunlight. They thrive best at temperatures around 15 ° C in summer and 10 ° C in winter. Therefore, you should not get too hot, for example, about heaters, stand. The location must be frost-free, because they can tolerate minimum temperatures to -5 ° C. However, this also means that they can be planted outdoors as a ground cover even in sheltered areas. The underground parts of plants drive then in the spring again.

If the bobbed hair retain its spherical shape or he is too big, you can him simply " tweak " with scissors. The proliferation of Bubikopfes is possible. One can divide the floor or make cuttings.

Cultivated forms

• ' Argentea ': This form has silver leaves.
• 'Aurea ': In this form, the leaves are green gold.
• ' Aladatase ': This form has bright light green leaves.

Swell

• David E. Boufford: Soleirolia soleirolii ( genus and species ) - text Registered as printed work. Flora of North America Editorial Committee ( eds.): Flora of North America North of Mexico, Volume 3 - Magnoliidae and Hamamelidae, Oxford University Press, New York, among others 1997, ISBN 0-19-511246-6.