Ecdeiocoleaceae

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Ecdeiocoleaceae
Ecdeiocolea monostachya, illustration (MR, bottom and right)

Ecdeiocolea monostachya , illustration
(MR, bottom and right)

Systematics
Subdivision : Seed plants (Spermatophytina)
Class : Bedecktsamer (Magnoliopsida)
Monocots
Commelinids
Order : Sweet grass (Poales)
Family : Ecdeiocoleaceae
Scientific name
Ecdeiocoleaceae
DFCutler & Airy Shaw

The Ecdeiocoleaceae are a family of plants belonging to the sweet grass-like (Poales). There are only two monotypical genera in this family , i.e. only two species. The two species of the Ecdeiocoleaceae are endemic and are only found in southwestern Australia .

description

The two species of Ecdeiocoleaceae are perennial herbaceous plants , with rhizomes . The alternately arranged leaves are (reduced to scales), simple, sessile, parallel-veined and entire.

Some flowers are grouped together in small, spiked inflorescences . They are single sexed ( monoecious ); in the spikelets are female and male flowers together. The small, unisexual flowers are threefold. There are six different polymorphic bloom present. There are four or six fertile , free stamens in the male flowers . In the female flowers are two carpels to a top permanent ovary grown, there are two free pen , each with a scar there. The pollination is carried by the wind ( anemophily ).

Solitary capsule fruits or achenes are formed.

Systematics

There are only (one or) two genera with only three species in the Ecdeiocoleaceae family:

  • Ecdeiocolea F. Muell. : With only two types:
  • Georgeantha B.G. Briggs & LASJohnson : With only one species:
    • Georgeantha hexandra B.G. Briggs & LASJohnson : Grows in western-southwest Australia in seasonal wetlands on sand and reaches heights of 0.5 to 0.8 m.

These two species used to be in the Restionaceae family . The closest relatives are the Joinvilleaceae and Poaceae .

swell

Individual evidence

  1. a b Rafaël Govaerts (Ed.): Ecdeiocoleaceae. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved August 22, 2018.
  2. Profile of the species with map of the location in the Western Australian Flora. (English)
  3. Profile of the species with map of the location in the Western Australian Flora. (English)

Web links

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