Aspazoma amplectens

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Aspazoma amplectens
Systematics
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Midday flowers (Aizoaceae)
Subfamily : Mesembryanthemoideae
Genre : Aspazoma
Type : Aspazoma amplectens
Scientific name of the  genus
Aspazoma
NEBr.
Scientific name of the  species
Aspazoma amplectens
( L.Bolus ) NEBr.

Aspazoma amplectens is the only plant of monotypic genus Aspazoma from the family of aizoaceae (Aizoaceae).

description

Aspazoma amplectens is a bushy, branched, upright small shrub with fibrous roots . The weakly lignified internodes are structured and contain additional vascular bundles and large, cylindrical, tightly packed, xeromorphic bladder cells in their cortex . The bark of young internodes is green and succulent . It becomes dry with age. Your epidermis is smooth. The leaves are cylindrical or slightly flattened in the upper part of the plant. They are arranged cross-opposite and free at their base. However, the leaves have a tubular, stem-encompassing shell. There are enlarged water-storing cells in the middle of the leaves. Likewise in the green bark. There are loosely arranged, mesomorphic, somewhat flattened bladder cells.

The individual blooms have a diameter of up to 45 millimeters. There are four to five sepals available. The white or pale yellow petals are fused with the sepals to form a short tube. Thread- shaped staminodes are present, the nectaries are shell-shaped.

The four to five-compartment capsule fruits have flap wings. The capsule fruits contain broadly ovate, light brown to whitish seeds with an almost smooth seed coat .

Systematics and distribution

Aspazoma amplectens is widespread in the Namaqualand of the South African province of North Cape in dry winter rain areas on quartzite hills .

The genus was first described in 1925 by Nicholas Edward Brown . The genus Aspazoma belongs to the subfamily Mesembryanthemoideae within the family of aizoaceae . The first description of Aspazoma amplectens as Mesembryanthemum amplectens was made in 1913 by Louisa Bolus . Nicholas Edward Brown placed them in the genus Aspazoma in 1926 .

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. 80-81 .
  • C. Klak, TL Nowell, TAJ Hedderson: Phylogeny and Revision of Brownanthus and Its Close Allies Aspazoma and Dactylopsis (Aizoaceae) Based on Morphology and Four DNA Regions . In: Kew Bulletin . Volume 61, Number 3, 2006, pp. 353-400, JSTOR: 20443284 .
  • 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. 32 .

Individual evidence

  1. ↑ Gardeners' Chronicle . 3rd episode, London 1925, Volume 78, p. 413.
  2. ^ Annals of the South African Museum . Volume 9, 1913, p. 153.
  3. ↑ In: Edwin Percy Phillips: The Genera of South African Flowering Plants . 1st edition, Cape Times, 1926, p. 244.

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