FAUNA AND FLORA O F MANGROVE SWAMPS
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FIG. 25. A forest of Avicelznia marina in the seaward fringe at Quissanga (lat. l2%.),
Moqambique. Mud-skippers were common here. (July 1967.)
Ridley (1930) has suggested that A . intermedia was a hybrid between
A. nlha and A. oBcinaZis; this must be incorrect. Moldenke (1958) has
suggested that hybridization may occur where several species of this
genus grow together. With hybridization a feasibility i t is not surprising
that confusion has arisen.
A . marina. is a very widespread species, the only representative of the
genus over most of the Indo-west-Pacific, and as will be shown below
has several physiological races. I n Malaya and adjacent areas of South