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PALAEOALDROVANDA SPLENDENS is a form taxon of uncertain identity.

It was for a long time thought to be an extinct angiosperm allied to the carnivorous plant genus Aldrovanda . Anderson et al. (2005) wrote: "synapomorphic characters that link the fossils seeds to extant Aldrovanda include hard testa with an outer epidermis of palisade cells and with a smooth, strongly reflecting surface, short micropylar neck, and extruding, pointed chalazal area".

However, research published by Heřmanová there is no evidence of a raphe , and the wall structure is simple. Palaeoaldrovanda does not show a clearly pronounced micropyle or chalaza . Our new interpretation of Palaeoaldrovanda significantly influences the current view of the family Droseraceae. It is at least possible that this family did not evolve until the Tertiary . It may also influence the hypotheses of the first unequivocal appearance of carnivorous plants in general.

Palaeoaldrovanda is only known from fossils of the late Turonian – Santonian Klikov beds of the Czech Republic . These fossils represent the second oldest reported remains of a carnivorous plant, after Archaeamphora longicervia
Archaeamphora longicervia
, which was described as a pitcher plant from the Early Cretaceous (though its identity has also been questioned).

REFERENCES

* ^ Degreef, J.D. 1997. "Fossil Aldrovanda." (PDF). Carnivorous Plant
Plant
Newsletter 26(3): 93–97. * ^ Anderson, C.L., K. Bremer ">(PDF). American Journal of Botany 92(10): 1737–1748. * ^ A B C Heřmanová, Z. & J. Kvaček 2010. Late Cretaceous Palaeoaldrovanda, not seeds of a carnivorous plant, but eggs of an insect. Journal of the National Museum (Prague), Natural History Series, 179(9): 105–118. * ^ Schlauer, J. 2012. Literature reviews. Carnivorous Plant Newsletter 41(3): 121. * ^ Knobloch, E. & D.H. Mai 1984. Neue Gattungen nach Früchten and Samen aus dem Cenoman bis Maastricht (Kreide) von Mitteleuropa. Feddes Repert. (Berlin) 95: 3-41. * ^ Knobloch, E. ">(PDF). Acta Botanica Gallica 152(2): 227–234. * ^ McPherson, S., A. Wistuba, A. Fleischmann right: 15px; display: none;">

* v * t * e

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Carnivorous and protocarnivorous plants

Carnivorous genera († extinct)

* Aldrovanda * † Archaeamphora * Brocchinia * Byblis * Catopsis * Cephalotus
Cephalotus
* Darlingtonia * Dionaea * Drosera
Drosera
* † Droserapites * † Droserapollis * † Droseridites
Droseridites
* Drosophyllum
Drosophyllum
* † Fischeripollis
Fischeripollis
* Genlisea * Heliamphora
Heliamphora
* Nepenthes * †Palaeoaldrovanda * Philcoxia * Pinguicula * Roridula * Sarracenia * † Saxonipollis * Triphyophyllum * Utricularia

PROTOCARNIVOROUS GENERA

* Aracamunia * Capsella * Colura * Dipsacus * Drymocallis * Geranium * Ibicella
Ibicella
* Lathraea * Paepalanthus * Passiflora
Passiflora
* Plumbago * Proboscidea * Stylidium

SEE ALSO

* International Carnivorous Plant
Plant
Society * Insectivorous Plant
Plant
Society *