Alseuosmiaceae

from Wikipedia, the free encyclopedia
Alseuosmiaceae
Alseuosmia macrophylla, illustration

Alseuosmia macrophylla , illustration

Systematics
Eudicotyledons
Nuclear eudicotyledons
Asterids
Euasterids II
Order : Astern-like (Asterales)
Family : Alseuosmiaceae
Scientific name
Alseuosmiaceae
Airy Shaw

The Alseuosmiaceae are a family of plants in the order of the aster-like (Asterales). The eight to eleven species are native to New Zealand , eastern Australia, and New Caledonia only .

description

Branch with leaves and flowers of Wittsteinia vacciniacea

They are mostly bushes or rarely semi-bushes . The leaves are alternate and arranged in a spiral or seemingly whirl on the branches. The simple leaf blades have a serrated or serrated leaf margin. Stipules are missing.

The flowers are solitary, bundled in the leaf axils or rarely in racemose inflorescences . The hermaphroditic, radial symmetry flowers are usually five-fold (rarely four or seven-fold) and smell in some species. The sepals are free. The petals are fused. The four to seven stamens are free from each other, but fused with the petals. Two carpels (sometimes only partially) to an under standing ovary grown. The berry , which contains very small seeds and is often surrounded by sepals, serves as a diaspore (distribution unit) .

Systematics and distribution

The Alseuosmiaceae families were established by Herbert Kenneth Airy Shaw . The type genus is Alseuosmia A. Cunn. A synonym for Alseuosmiaceae Airy Shaw is Platyspermataceae Doweld .

The families Alseuosmiaceae, Phellinaceae and Argophyllaceae form a related group within the Asterales . The genera of this family were classified early, for example, in the families Caprifoliaceae , Rubiaceae , Rutaceae , Ericaceae and Epacridaceae .

The range only includes New Zealand , eastern Australia and New Caledonia and perhaps New Guinea.

The family contains three to five genera with about eight to eleven species:

  • Alseuosmia A. Cunn. : The four to six species are only found in New Zealand:
    • Alseuosmia banksii A. Cunn. : It is probably the kind with the sweetest-smelling flowers of the New Zealand flora. There are two varieties.
      • Alseuosmia banksii A. Cunn. var. banksii : It occurs on the North Island of New Zealand only from Te Paki to the vicinity of the northern city limits of Auckland.
      • Alseuosmia banksii var. Linariifolia R.O. Gardner : It occurs on the North Island of New Zealand only from Kaitaia to around Kaiwaka.
    • Alseuosmia macrophylla A. Cunn. : It occurs only on parts of the North Island and South Island of New Zealand.
    • Alseuosmia × quercifolia (= Alseuosmia banksii A.Cunn. × Alseuosmia macrophylla A.Cunn. ): It occurs only on the North Island of New Zealand.
    • Alseuosmia pusilla Col .: It occurs only on the North Island and South Island of New Zealand.
    • Alseuosmia turneri R.O. Gardner : It occurs only on the North Island of New Zealand.
  • Crispiloba Steenis : it contains only one species:
  • Periomphale Baill. (Syn .: Memecylanthus Gilg & Schltr. ): It contains only one species:
  • Wittsteinia F. Muell. (Syn .: Pachydiscus Gilg & Schltr. ): It contains only two species:

swell

Individual evidence

  1. ↑ Jesper Kårehed, Johannes Lundberg, Birgitta Bremer, Kare Bremer: Evolution of the Australasian Families Alseuosmiaceae, Argophyllaceae, and Phellinaceae. In: Systematic Botany , Volume 24, Issue 4, 1999. JSTOR 2419649
  2. ^ Alseuosmiaceae in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved April 19, 2014.
  3. ↑ Data sheet from the New Zealand Plant Conservation Network .

Web links

Commons : Alseuosmiaceae  - collection of images, videos and audio files