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Multiple resprouting from diaspores and single cotyledons in the Australian tropical tree species Idiospermum australiense

Published online by Cambridge University Press:  25 September 2002

Will Edwards
Affiliation:
School of Tropical Biology, James Cook University, Cairns, Australia 4878
Paul Gadek
Affiliation:
School of Tropical Biology, James Cook University, Cairns, Australia 4878
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Abstract

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In 1999, Dalling & Harms simulated 100% above-ground herbivory on seedlings of Gustavia superba, a large-seeded species from Barro Colorado Island, Panama, and showed the remarkable ability for cotyledons to regenerate up to eight new shoots. They used this evidence to propose that cotyledon size (at least in this species)was adaptive in surviving pre- and early post-germination hazards (Dalling & Harms 1999). In this note we describe the first record of multiple resprouting in an Australian tropical plant species. Idiospermum australiense (Diels) S. T. Blake (Calycanthaceae) exhibits characteristics similar (but not identical) to G. superba that support the contention of Dalling & Harms (1999).

Type
SHORT COMMUNICATION
Copyright
© 2002 Cambridge University Press