New Zealand Journal of Botany abstracts

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B00009
Received 19 April 2000; accepted 27 July 2000

Dioecism in Elingamita johnsonii (Myrsinaceae)

P. B. HEENAN

Landcare Research

Abstract  Examination of the flowers of Elingamita johnsonii confirms that the species is functionally dioecious. Female flowers have a well-developed ovary, capitate stigma, and anthers which produce pollen with occluded apertures. Male flowers produce abundant aperturate pollen and have a rudimentary ovary that lacks a normally developed stigma and placenta. The sizes of the floral parts differ in each sex, with the female having smaller sepals, petals, and anthers, and shorter filaments. Male plants have larger inflorescences, more flowers per inflorescence, and more pollen grains per anther.

Keywords  Myrsinaceae; Elingamita; Elingamita johnsonii; dioecious; Three Kings Islands flora; New Zealand flora

New Zealand Journal of Botany, 2000, Vol. 38: 575-585

0028-825X/00/3804-0575 $7.00 (c) The Royal Society of New Zealand 2000

PDF file of entire paper: medium quality (415K); (scanned from paper original: notes about this process)

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