Schizo base
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Schizobasis is a plant kind from the family of asparagus plants (Asparagaceae). The botanical name of the genus is derived from the Greek words schizein for 'split' and basis for 'base' and refers to the capsule fruits.
Description and ecology
Vegetative characteristics
The species of the genus Schizobasis are perennial herbaceous plants . These aboveground or underground geophytes form pear-shaped to spherical onions as persistence organs , which often have fleshy onion scales arranged loosely in the shape of bricks. The individual young leaves are linear. The leaves are missing from fully grown plants.
Generative characteristics
The flowering time is summer. One to three upright, thin sinewy-wiry inflorescences are formed per plant . The green, well-branched inflorescences form a rounded panicle .
The individual, relatively small flowers open at night. The hermaphrodite flowers are radial symmetry and threefold. Their inflorescence is white. It remains on the inflorescence beyond the flowering period. The six tepals are ribbon-shaped. The six stamens are slightly shorter than the tepals and fused with their base. The dorsifix anthers are shorter than 1 millimeter. The seated, at a length of up to 1.5 millimeters ovoid ovary is upper constant and dreifächrig. The stylus , which is up to 1.5 millimeters long, ends in a three-lobed scar .
The ellipsoidal to spherical capsule fruits contain wrinkled, black seeds .
Systematics and distribution
The genus Schizobasis is common in Ethiopia, Tanzania and in southern Africa with Namibia and South Africa. The schizo-based species thrive best on well drained soils in dry to semi-arid areas and in crevices.
The genus Schizobasis was established in 1873 by John Gilbert Baker . Adenotheca Welw is a synonym for Schizobasis Baker . ex Baker . Some authors place the schizo-based species in the genus Drima Jacq. ex Willd.
- Schizobasis angolensis Baker : It occurs in Ethiopia and from Tanzania to southern Africa.
- Schizobasis cuscutoides (Burch. Ex Baker) Benth. & Hook. f. : It occurs in southern Africa.
- Schizobasis gracilis R.E.Fr. : It occurs in Ethiopia and from Tanzania to southern Africa.
- Schizobasis intricata (Baker) Baker : It occurs in Ethiopia and from Tanzania to southern Africa.
proof
literature
- Ernst Jacobus van Jaarsveld : Schizobasis . In: Urs Eggli (Hrsg.): Succulent lexicon. Monocotyledons . Eugen Ulmer, Stuttgart 2001, ISBN 3-8001-3662-7 , pp. 296 .
Individual evidence
- ↑ John Gilbert Baker: On Schizobasis, A new Genus aif Liliaceae from Cape Colony. In: Journal of Botany, British and Foreign . Volume 11, London 1873, p. 105 ( online ).
- ↑ John C. Manning, Peter Goldblatt , MF Fay: A revised generic synopsis of Hyacinthaceae in sub-Saharan Africa, based on molecular evidence, including new combinations and the new tribe Pseuoprospereae. In: Edinburgh Journal of Botany , Volume 60, 2004, pp. 533-568.
- ↑ a b c d e Rafaël Govaerts (Ed.): Schizobasis. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved September 4, 2016.