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MALAGASY/INDO-AUSTRALO-MALESIAN PHYTOGEOGRAPHIC CONNECTION


Home | Introduction | Gondwanan Relicts | "Lemurian Stepping Stones"
Long Distance Dispersal | Conclusion | References

Dillenia Amplexicaul Group

The revision of Dillenia (Dilleniaceae) by Hoogland (1952) recognizes a basic division within the genus on the basis of the presence/absence of an amplexicaul petiolar wing. Both D. triquetra, present in Madagascar and Sri Lanka, and D. ferruginea, endemic to the Seychelles, possess the winged petiole. Shared distribution of D. triquetra between Madagascar and Sri Lanka implies a more recent dispersal.

D. triquetra
Dillenia triquetra (Rottb.) Gilg
Distribution map

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