Triuridaceae
Encyclopedia
Triuridaceae is a family of flowering plants. Such a family has been recognized by relatively few taxonomists.

The APG II system
APG II system
The APG II system of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Group. It was a revision of the first APG system, published in 1998, and was superseded in 2009...

, of 2003, does recognize such a family and places it in the order Pandanales
Pandanales
Pandanales is an order of flowering plants, with a pantropical distribution.The APG III system places the Pandanales in the monocots. Both the APG III and APG II systems include five families in this order:* Cyclanthaceae* Pandanaceae* Stemonaceae...

, in the clade monocots. This is a change from the APG system
APG system
The APG system of plant classification is the first, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in 1998 by the Angiosperm Phylogeny Group. It was superseded in 2003 by a revision, the APG II system, and then in 2009 by a further...

, of 1998, which left the family unplaced as to order, but did place it in the clade monocots.

Most sources assume the family to consist of some half dozen genera, with Sciaphila
Sciaphila
Sciaphila is a genus of flowering plants in the family Triuridaceae....

as the biggest genus. However, H. Maas-van de Kamer and T. Weustenfeld (1998) regarded the family to consist of the following nine genera :
  • Andruris Schltr.
  • Hyalisma Champ.
  • Lacandonia
    Lacandonia
    Lacandonia schismatica is the sole species of the genus Lacandonia and is endemic to the Lacandon Jungle in the Mexican state of Chiapas. It is known from very few populations and is considered endangered by the researchers who investigate this species. L...

    E.Martínez & Ramos
  • Peltophyllum Gardner (syn. Hexuris Miers)
  • Sciaphila
    Sciaphila
    Sciaphila is a genus of flowering plants in the family Triuridaceae....

    Blume (syn. Hyalisma Champion)
  • Seychellaria Hemsl.
  • Soridium Miers
  • Triuridopsis H.Maas & Maas
  • Triuris
    Triuris
    Triuris is a genus in the family Triuridaceae. It consists of species that are small and achlorophyllous, occurring in tropical Central and South America....

    Miers


The Kew "World Checklist of the Triuridaceae" was reviewed by H. Maas-van de Kamer and P. Maas-van de Kamer in 2005. In this list the genera Andruris and Hyalisma are synonymized into Sciaphila, but two new genera Kupea
Kupea
Kupea is a genus of plant in family Triuridaceae. It contains the following species:* Kupea jonii Cheek* Kupea martinetugei Cheek & S.A.Williams...

and Kihansia are included. Both genera were described (and placed in Triuridaceae) in 2003. The revised list of genera is thus:
  • Kihansia Cheek
  • Kupea
    Kupea
    Kupea is a genus of plant in family Triuridaceae. It contains the following species:* Kupea jonii Cheek* Kupea martinetugei Cheek & S.A.Williams...

    Cheek & S.A.Williams
  • Lacandonia
    Lacandonia
    Lacandonia schismatica is the sole species of the genus Lacandonia and is endemic to the Lacandon Jungle in the Mexican state of Chiapas. It is known from very few populations and is considered endangered by the researchers who investigate this species. L...

    E.Martínez & Ramos
  • Peltophyllum Gardner (syn. Hexuris Miers)
  • Sciaphila
    Sciaphila
    Sciaphila is a genus of flowering plants in the family Triuridaceae....

    Blume (syn. Hyalisma Champion)
  • Seychellaria Hemsl.
  • Soridium Miers
  • Triuridopsis H.Maas & Maas
  • Triuris
    Triuris
    Triuris is a genus in the family Triuridaceae. It consists of species that are small and achlorophyllous, occurring in tropical Central and South America....

    Miers

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