Black mangrove, Avicennia germinans, in Texas: past and present distribution.
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Black mangrove, Avicennia germinans, (L.) L., occurs widely along the coast of Texas but is concentrated primarily in three central and southern areas. Except for a single record in 1853 from the mouth of the Rio Grande, no other documentation for Texas occurs before the 1930's. Photographic evidence for the early 1900's, however, suggests that mangroves were present along the Texas coast at the turn of the century. A comparison of early and recent aerial photographs indicates that the concentration of black mangroves has increased locally between Matagorda Island and Port O'Conner, Calhoun, Co., in the vicinity of Harbor Island, Nueces Co., and in the Port Isabel-South Bay area, Cameron Co., from the Grande.