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WILLIAM MACNAE
Variations in the landward fringe of Avicennia marina in Mopmbique.
FIG. 13. Avicennia parkland at Inhaca (lat. 26"s.) with Juncus kraussii, Arthrocnemurn
decumhens and Sesuuium portulacastrum. Such areas support large populations of
Uca lactea f. annulipes, Sesarma ortmanni and Cerithidea decollata, and Macrophthalmus depressus spreads up to this level. (April 1967.)
FIG. 14. Dwarfed Avicennia nzarina at Inhambane (lat. 23"S.), with Chenolea diffusa.
(Photo: A. 0. D. Mogg,
The dwarfing is probably due to mineral deficiencies.
July 1963.)