New Zealand Journal of Botany abstracts

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Structural Hybridity in New Zealand Dacrydium

c. J. Quinn

Botany School, University of New South Wales, Kensington, New South Wales, Australia

J. A. Rattenbury

Botany Department, University of Auckland, New Zealand

Abstract Six populations of a putative hybrid Dacrydium have been located within the Tongariro National Park, New Zealand. Cytological and chemical analyses have shown these to be Fi hybrids of D. laxifolium and D- intermedium. The hybrid is heterozygous for two paracentric inversions in separate acrocentric chromosomes, and is highly infertile. A small percentage of viable seed is set on the hybrid, but it is suggested that this may be apomictic. The cross has been repeated experimentally.

Received 16 June 1971

PDF file of entire paper: medium quality (1307K); (scanned from paper original: notes about this process)

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