New Zealand Journal of Botany abstracts

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BREEDING SYSTEMS IN NEW ZEALAND GRASSES
V. NATURALISED SPECIES OF CORTADERIA

H. E. Connor

Botany Division, Department of Scientific and Industrial Research, Christchurch

Abstract The South American species of Cortaderia naturalised in New Zealand are C. sellcana and another species, probably C. atacamensis. The genus has long been considered dioecious, but C. selloana is gynodioecious as are the three species indigenous to New Zealand. In the populations of C. selloana examined in New Zealand the ratio of hermaphrodites to females is 1:1. Cortaderia atacamensis occurs here as female plants only and reproduces freely by seed produced in an autonomous apomictic process. Gynodioecism is reported in the South American species C. pilosa and C. araucana.

N.Z. J. Bot. 3 : 17-23
(Received for publication, 10 November 1964)

PDF file of entire paper: medium quality (552K); (scanned from paper original: notes about this process)

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