Anarthriaceae

The Anarthriaceae are a family of plants that belongs to the order Süßgrasartigen ( Poales ) within the monocot plants. The areas of the kinds of Anarthriaceae are only in Australia.

  • 3.1 Notes and references

Description

The types of Anarthriaceae are perennial herbaceous plants, some species act as rods shrubs. There are deciduous to evergreen plants with rhizomes, often there are xerophytes. Often the stems are branched. The alternate and distichous on the culm arranged leaves are sessile, simple, parallel-veined and entire. There are ligules present.

They are dioecious getrenntgeschlechtig ( dioecious ) or rarely monoecious ( monoecious ). In different multiform inflorescences many flowers are summarized. The unisexual flowers are radial symmetry and threefold. There are six equally protean bloom yet. The male flowers contain only a circle with three free stamens. In the female flowers are three carpels are a superior ovaries grown with only one ovule per ovary chamber. There are three free stylus, including three scars present. Pollination is by wind ( anemophily ).

There are 1.5 to 7 mm long formed nuts and seeds contain starch.

Ingredients and chromosome numbers

There are flavonol glycosides present. The chromosome numbers be n = 6, 9, 11

System

All species are found only in the Australian state of Western Australia. There are elements of the Australian floristic province of South West ( South West Australian Floristic Region).

David Frederick Cutler and Herbert Kenneth Airy Shaw presented to the family of Anarthriaceae 1965 in Kew Bulletin, 19, p 489. The type genus and for a long time and only genus of the family is Anarthria R.Br..

Within the order of Poales the Anarthriaceae are closest related to the Centrolepidaceae and Restionaceae.

Since the three genera Anarthria, Hopkinsia and Lyginia are very different in many features, it may be that even Hopkinsiaceae BGBriggs & LASJohnson and Lyginiaceae BGBriggs & LASJohnson are independent families. Hopkinsia and Lyginia were also classified in the family of Restionaceae.

There are only three genera with about eleven species in the family of Anarthriaceae:

  • Anarthria R.Br.: Types With six to seven.
  • Hopkinsia W.Fitzg. With some (one or ) two to three rare species.
  • Lyginia R.Br.: With approximately (one to ) three ways.

Swell

  • The Anarthriaceae in APWebsite family. (English )
  • The Anarthriaceae at DELTA of L.Watson and MJDallwitz family. ( However, given there is only one class Anarthria )
Ovary (botany)
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