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Discovery of male plants of Najas marina L. (Hydrocharitaceae) in Britain


, : Discovery of male plants of Najas marina L. (Hydrocharitaceae) in Britain. Watsonia 23(2): 331-334

The dioecious, annual macrophyte Najas marina is represented in Great Britain only in the Norfolk Broads. Although it was discovered in 1883 (at Hickling Broad), only female plants had previously been recorded and all seed production was assumed to be apomictic. Following a detailed study of the population biology of this species, the occurrence of male plants at Hickling and Upton Broads in the summer of 1998 is reported. Photographs of the inconspicuous male flowers and pollen are provided.


Accession: 003408135

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Related references

Stuckey R.L., 1984: Distributional history of najas flexilis najas gracillima and najas marina najadaceae in eastern north america. Ohio Journal of Science 84(2): 4-5

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