Supriya Ghosh (Editor)

Trithuria

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Kingdom
  
Plantae

Family
  
Hydatellaceae

Order
  
Nymphaeales

Rank
  
Genus

Trithuria Trithuria australis Diels DDSokoloff Remizowa TMacfarlane

Similar
  
Nymphaeales, Cabombaceae, Centrolepidaceae, Trimenia, Austrobaileyales

Trithuria is a genus of small aquatic herb, which represent the only members of the Family Hydatellaceae found in India, Australia, and New Zealand. Most of the 12 formally characterised species of Trithuria are found in Australia, with the exception of T. inconspicua and T. konkanensis, which are found in New Zealand and India, respectively.

Contents

Trithuria Trithuria Wikipedia

These diminutive, moss-like, aquatic plants are the closest living relatives of the two closely related families Nymphaeaceae (water-lilies) and Cabombaceae. Together, these three families compose the order Nymphaeales in the APG III system of flowering plant classification. Trithuria (Hydatellaceae) diverged from the rest of Nymphaeales soon after Nymphaeales diverged from its sister taxon, which comprises all of the flowering plants except the two orders Nymphaeales and Amborellales.

Trithuria Trithuria submersa Threatened Species Link

Taxonomy

The genus Hydatella was recently subsumed into Trithuria based on the following morphological synapomorphies:

Trithuria Flickriver Most interesting photos tagged with trithuria

  • lack of a vascular cambium,
  • lack of pericyclic sclerenchyma,
  • anomocytic stomata,
  • truncate anther connective,
  • boat-shaped pollen,
  • inner integument with two cell layers,
  • palisade exotesta,
  • seed operculum formed by cell enlargement in the inner integument,
  • perisperm and
  • hypogeal germination.

    • Species and distribution

    Trithuria Trithuria occidentalis Benth FloraBase Flora of Western Australia
    1. Trithuria austinensis D.D.Sokoloff - Western Australia
    2. Trithuria australis (Diels) D.D.Sokoloff - Western Australia
    3. Trithuria bibracteata Stapf ex D.A.Cooke - Western Australia
    4. Trithuria cookeana D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall - Northern Territory of Australia
    5. Trithuria cowieana D.D.Sokoloff - Northern Territory
    6. Trithuria filamentosa Rodway - Tasmania
    7. Trithuria inconspicua Cheeseman - North Island of New Zealand
    8. Trithuria konkanensis S.R.Yadav & Janarth. - Maharashtra
    9. Trithuria lanterna D.A.Cooke - Northern Territory, Western Australia, Queensland
    10. Trithuria occidentalis Benth. - Western Australia
    11. Trithuria polybracteata D.A.Cooke ex D.D.Sokoloff, Remizowa, T.D.Macfarl. & Rudall - Western Australia
    12. Trithuria submersa Hook.f. - Western Australia, South Australia, Victoria, New South Wales, Tasmania
    Trithuria Trithuria filamentosa Tindo2 Flickr

    Trithuria Left Illustration of Trithuria submersa published with the

    Trithuria httpsuploadwikimediaorgwikipediacommonsthu

    Trithuria Trithuria submersa

    References

    Trithuria Wikipedia
    (Text) CC BY-SA