Ptilotus

Spherical inflorescence of Ptilotus obovatus

Ptilotus is a genus of flowering plants in the family Amaranthaceae ( Amaranthaceae ). The approximately 90 species come to situations in two ways only on the Australian mainland. Trivial names for Ptilotus species are Mulla Mulla, Pussy Tails, lambs tail and Haarschöpfchen.

  • 5.1 Notes and references

Description

Appearance and leaves

Ptilotus species grow as rare annual to perennial mostly herbaceous plants, subshrubs or shrubs. Often a woody " rhizome " is available. The aboveground plant parts are hairy bare to slightly fluffy or woolly. The arranged in a basal rosette and / or alternate distributed on the stem leaves are petiolate to sessile.

Inflorescences, flowers and diasporas

The mostly terminal, sometimes lateral, seated or standing on Blütenstandsschäften inflorescences are ährig, spherical, ovoid, more or less cylindrical, rarely they are interrupted or composed; which usually many flowers are tight. The inflorescence axis is hairy woolly. The often brightly colored inflorescences range from shimmering white on silver and greenish- yellow to mauve, purple or pink. The often tough outer leaves and the flower two bracts are usually ovate with a sharp tip, trockenhäutig, hairy bald or different.

The hermaphrodite flowers are fünfzählig. The five different outside feathery or woolly hairy, more or less linealischen, stiff bracts are free or only short fused at their base. It is only the outer circle available with five stamens, of which are often reduced to one to three staminodes. The stamens are usually slightly shorter than the bracts and usually fused at their base to a membranous, hard cup, occasionally with small teeth alternating with the stamens. The sedentary or short -stalked ovary contains a hanging ovule.

As propagation unit ( diasporas ) are the wrapped lasting bloom cladding of the seeds ( small nuts ); this expansion unit is called the utricle. The bloom verkahlen to fruit maturity.

Occurrence

The more than 90 species thrive almost all originally in arid to semi-arid ( drier ) areas of the mainland to the subtropical to tropical Australia. Only one species ( Ptilotus spathulatus ) also comes in Tasmania before and one species ( Ptilotus conicus ), also in southern Malaysia's on the Small Sunda Islands (Flores, Roti, Timor, Wetar ) and the Southern Moluccas ( Tanimbarese, Key ) is encountered. For example, occur about 80 species and in New South Wales about 22 species in Western Australia.

System

The first publication of the genus Ptilotus took place in 1810 by Robert Brown in Prodromus Novae Florae Hollandiae, p 415 The specific epithet means ptilotos or leathery winged and refers to the hairy flowers. Synonyms for Ptilotus R.Br. are Dipteranthemum F.Muell. , Trichinium R.Br., Hemisteirus F.Muell ..

There are about 90 species Ptilotus:

  • Ptilotus aervoides ( F.Muell. ) F.Muell.
  • Ptilotus albidus ( C.A.Gardner ) Benl
  • Ptilotus Alexandrian Benl
  • Ptilotus aphyllus Benl
  • Ptilotus appendiculatus Benl
  • Ptilotus aristatus Benl
  • Ptilotus arthrolasius F.Muell.
  • Ptilotus astrolasius F.Muell.
  • Ptilotus atriplicifolius ( Moq. ) Benl
  • Ptilotus auriculifolius ( Moq. ) F.Muell.
  • Ptilotus axillary ( Benth. ) F.Muell.
  • Ptilotus beckerianus ( F.Muell. ) F.Muell. ex J.M.Black
  • Ptilotus Blackii Benl
  • Ptilotus brachyanthus ( Benth. ) F.Muell.
  • Ptilotus caespitulosus F.Muell.
  • Ptilotus calostachyus ( F.Muell. ) F.Muell.
  • Ptilotus capitatus ( F.Muell. ) C.A.Gardner
  • Ptilotus carinatus Benl
  • Ptilotus carlsonii F.Muell.
  • Ptilotus chamaecladus Diels
  • Ptilotus chippendalei Benl
  • Ptilotus chortophytum ( Diels ) Schinz
  • Ptilotus chrysocomus R.W.Davis
  • Ptilotus clementii ( Farmar ) Benl
  • Ptilotus conicus R.Br.: It is the only species that also occurs in Malaysia's, but it also occurs in Western Australia.
  • Ptilotus corymbosus R.Br.
  • Ptilotus crispus Benl
  • Ptilotus decipiens ( Benth. ) CAGardner ex AWHill
  • Ptilotus declinatus Nees
  • Ptilotus distans ( R.Br. ) Poir.
  • Ptilotus divaricatus ( Gaudich. ) F.Muell.
  • Ptilotus drummondii ( Moq. ) F.Muell.
  • Ptilotus eriotrichus ( Ewart & J.White ) P.S.Short
  • Ptilotus erubescens Schltdl.
  • Ptilotus esquamatus ( Benth. ) F.Muell
  • Ptilotus exaltatus Nees
  • Ptilotus extenuatus Benl
  • Ptilotus fasciculatus W.Fitzg.
  • Ptilotus fraseri ( Moq. ) F.Muell.
  • Ptilotus fusiformis ( R.Br. ) Poir.
  • Ptilotus gardneri Benl
  • Ptilotus gaudichaudii ( Steud. ) J.M.Black
  • Ptilotus gomphrenoides Benth.
  • Ptilotus grandiflorus F.Muell.
  • Ptilotus halophilus R.W.Davis
  • Ptilotus helichrysoides ( F.Muell. ) F.Muell.
  • Ptilotus helipteroides ( F.Muell. ) F.Muell.
  • Ptilotus holosericeus ( Moq. ) F.Muell.
  • Ptilotus humilis ( Nees ) F.Muell.
  • Ptilotus incanus ( R.Br. ) Poir.
  • Ptilotus indivisus Benl
  • Ptilotus johnstonianus W.Fitzg.
  • Ptilotus kenneallyanus Benl
  • Ptilotus lanatus Moq.
  • Ptilotus latifolius R.Br.
  • Ptilotus Lazaridis Benl
  • Ptilotus leucocomus ( Moq. ) F.Muell.
  • Ptilotus macrocephalus ( R.Br. ) Poir.
  • Ptilotus manglesii ( Lindl. ) F.Muell
  • Ptilotus marduguru Benl
  • Ptilotus mitchellii Benl
  • Ptilotus mollis Benl
  • Ptilotus murrayi F.Muell.
  • Ptilotus nobilis ( Lindl. ) F.Muell.
  • Ptilotus obovatus ( Gaudich. ) F.Muell.
  • Ptilotus parvifolius ( F.Muell. ) F.Muell.
  • Ptilotus petiolatus Farmar
  • Ptilotus polakii F.Muell.
  • Ptilotus polystachyus ( Gaudich. ) F.Muell.
  • Ptilotus procumbens Benl
  • Ptilotus pyramidatus ( Moq. ) F.Muell.
  • Ptilotus rigidus Lally
  • Ptilotus robynsianus Benl
  • Ptilotus roei ( Benth. ) F.Muell.
  • Ptilotus rotundifolius ( F.Muell. ) F.Muell.
  • Ptilotus royceanus Benl
  • Ptilotus semilanatus ( Lindl. ) J.M.Black
  • Ptilotus seminudus ( J.M.Black ) J.M.Black
  • Ptilotus sericostachyus ( Nees ) F.Muell.
  • Ptilotus sessilifolius ( Lindl. ) Benl
  • Ptilotus spathulatus ( R.Br. ) Poir. It comes in southern Australia and Tasmania, and intervening islands.
  • Ptilotus stirlingii ( Lindl. ) F.Muell.
  • Ptilotus subspinescens R.W.Davis
  • Ptilotus symonii Benl
  • Ptilotus tetrandrus Benl
  • Ptilotus Trichocephalus Benl
  • Ptilotus villosiflorus F.Muell.
  • Ptilotus wilsonii Benl

Use

Ptilotus some grades, sometimes referred to as Haarschöpfchen be used as ornamental plants.

Swell

  • Registration in Western Australia Flora, Leslie Watson, 2008.
  • S. W. L. Jacobs & L. Lapinpuro: Ptilotus. In: PlantNet - New South Wales Flora Online. Royal Botanic Gardens & Domain Trust, accessed on 26 November 2012 ( English).
  • Ptilotus. In: Electronic Flora of South Australia Fact Sheet. State Herbarium of South Australia, accessed on 26 November 2012 ( English).
Amaranthoideae Robert Brown (botanist) Rachis Ovary (botany) Desert climate Malesia Maluku Islands Agricultural Research Service
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