Grass trees

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Grass trees
Xanthorrhoea malacophylla

Xanthorrhoea malacophylla

Systematics
Department : Vascular plants (tracheophyta)
Subdivision : Seed plants (Spermatophytina)
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Asparagales (Asparagales)
Family : Grass trees
Scientific name
Xanthorrhoeaceae
Dumort.

The plant family of xanthorrhoeaceae (Xanthorrhoeaceae s. L.) Belongs to the order of the asparagus-like (Asparagales) within the monocotyledonous ( monocot ). The botanical genus name Xanthorrhoea is derived from the Greek xanthos for yellow and rhoe for flow and refers to the resin. Some species are used as solitary, decorative ornamental plants in frost-free areas in parks and gardens.

Systematics and distribution

The species of the family Xanthorrhoeaceae s. l. thrive from temperate to tropical climates.

The molecular genetic investigations in the last ten years have led to the fact that the family boundaries within the order of the Asparagales have shifted significantly. The systematics of this genus, subfamily, family, has been discussed for a long time, so one will often encounter seeming inconsistencies in the literature. The systematics according to Mark W. Chase et al. 2009. The Xanthorrhoeaceae Dum family. was extended to include the taxa of the former families of the Affodilla family (Asphodelaceae) and the daylily family (Hemerocallidaceae). The family name Xanthorrhoeaceae was first published in 1829 by Barthélemy Charles Joseph Dumortier in Analyze des Familles de Plantes , 60, 62, 103. The type genus is Xanthorrhoea Sm.

There are three subfamilies in the grass tree family Xanthorrhoeaceae today:

  • Affodilla family (Asphodeloideae Burnett ): The approximately 15 genera with approximately 785 species come from Africa , especially in the Capensis, across the Mediterranean to Central Asia , Australia and New Zealand .
  • Daylily family (Hemerocallidoideae Lindl. ): The approximately 19 genera with approximately 85 species in a disjoint area from Papua Asia to New Zealand and the Pacific, especially in Australia, but also from Europe to Asia, Malesia , India , Madagascar , Africa and two genera in South America .
  • Xanthorrhoeoideae MWChase, Reveal & MFFay : It contains only one genus:

The genus Kingia was often assumed to also belong to this family group; however, it belongs to the Dasypogonaceae family .

photos

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  • Mark W. Chase, James L. Reveal, Michael F. Fay: A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae. In: Botanical Journal of the Linnean Society. Volume 161, Issue 2, 2009, pp. 132-136. (Section systematics)
  • The family of Xanthorrhoeaceae in APWebsite. (Sections Systematics and Description) last viewed in April 2010

Individual evidence

  1. ↑ Angiosperm Phylogeny Group: An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. In: Botanical Journal of the Linnean Society. 161: 2, 2009, pp. 105-121.
  2. ↑ Mark W. Chase, James L. Reveal & Michael F. Fay: A subfamilial classification for the expanded asparagalean families Amaryllidaceae, Asparagaceae and Xanthorrhoeaceae. In Botanical Journal of the Linnean Society. Volume 161, Issue 2, 2009, pp. 132-136.
  3. ↑ List of all names published for Xanthorrhoeaceae (valid and invalid) at Australian Plant Name Index = APNI.

Web links

Commons : Trees (Xanthorrhoeaceae)  - Collection of images, videos and audio files