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Bryopsidales, Dichotomosiphonaceae

Avrainvillea sp. 1

Avrainvillea sp. 1 photoIn natural habitat.
Photo Data
: Sukorn Island, Trang.
: 1.5 m
Several wedge-shaped blades of this species rise from a short stem connected to the holdfast, which is small and less than 1 cm in length. The blade margin is finely fibrous. The blade filaments are cylindrical, approximately 30-40 µm in diameter and dichotomously divided with constrictions at branching points. The apices of the filaments are round. This seaweed is found on rocks covered with sand in lower intertidal to subtidal zones along calm shorelines and in tidal pools.

Avrainvillea sp. 1 photo2
Fresh specimen.
Avrainvillea sp. 1 photo3
Microscopic view of the blade filament with constrictions (arrows) at branching point.