Sciatophytum tripolium
| Sciatophytum tripolium | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name of the genus | ||||||||||||
| Sciatophyte | ||||||||||||
| L.Bolus | ||||||||||||
| Scientific name of the species | ||||||||||||
| Sciatophytum tripolium | ||||||||||||
| ( L. ) L. Bolus |
Skiatophytum tripolium is the only type of monotypic genus Skiatophytum from the family of aizoaceae (Aizoaceae). The botanical name of the genus is derived from the Greek words skias for 'shade' and phyton for 'plant' and refers to the shady habitats in which the species occurs.
description
Skiatophytum tripolium grows as a perennial or biennial plant with fleshy, hunted, branched roots and perennial vegetative shoots as well as an inflorescence that is formed on the side every year. The opposite or alternate arranged dark green leaves are flat. Young leaves are curled at their edge. Your epidermis does not contain any bladder cells .
The flowers appear in pairs to five in cymes . They have five sepals and white petals . The nectarium forms a flat ring. The flowering period extends from spring to summer.
The flaps of the xerochastic , five- compartment fruits - rarely four to seven compartments are present - open only incompletely. The fruits are 1.6 to 2.4 centimeters in diameter and contain kidney-shaped, flattened seeds 1.8 to 2.2 millimeters in length. The black seed coat is covered with low papillae .
Systematics and distribution
Skiatophytum tripolium is common in South Africa in the western districts of the Western Cape Province . It grows in humus-containing sand on the lower slopes of the mountains at altitudes of less than 250 meters, in areas with winter precipitation amounts of 400 to 1000 millimeters annually.
The first description of the species as Mesembryanthemum tripolium by Carl von Linné was published in 1753. Harriet Margaret Louisa Bolus put this species in 1927 as the only species in the genus Skiatophytum newly established by her .
A synonym of the genus is the genus Gymnopoma established by Nicholas Edward Brown in 1928 and its only species, Gymnopoma tripolium . Another synonym for the species is Mesembryanthemum expansum Thunb. (1800, nom. Illeg.).
proof
literature
- Heidrun EK Hartmann (Ed.): Illustrated Handbook of Succulent Plants: Aizoaceae AE . Springer Verlag, Berlin / Heidelberg / New York 2001, ISBN 3-540-41691-9 , pp. 301 .
- Gideon Smith et al. a. (Ed.): Mesembs of the World: Illustrated Guide to a Remarkable Succulent Group . Briza Publications, 1998, ISBN 1-875093-13-3 , pp. 78-79 .
Individual evidence
- ↑ Carl von Linné: Species Plantarum . 1st edition, Lars Salvius, Stockholm 1753, pp. 481-482 ( online ).
- ^ South African Gardening . Volume 17, Cape Town 1927, p. 435.
- ↑ The Gardeners' Chronicle . 3rd episode, Volume 83, 1928, pp. 194-195.
further reading
- HD Ihlenfeldt, M. Gerbaulet: Investigations into the inventory of characteristics and the taxonomy of the genera Apatesia NEBr., Carpanthea NEBr., Conicosia NEBr., Herrea Schwantes and Hymenogyne Haw. (Mesembryanthemaceae Fenzl.) . In: Botanical yearbooks for systematics . Volume 111, Number 4, 1990, pp. 457-498.
- Otto A. Leistner: Skiatophytum L.Bol .: 'n morfologies- taksomomiese study . In: South African Journal of Botany . Volume 24, 1958, pp. 89-102.