| Description: |
Thalli thin, sheet-like, as turfs, tufts or solitary blades, variable in shape, to 10 cm in height. Blades ruffled or flat, with small microscopic teeth on margins. Blades unperforated or perforated with few to many small holes. The blades are two cells thick; the two layers easily separate into single cell layers. Holdfasts comprised of small, tough rhizoids. |
Species:
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|
Ulva rigida C. Agardh |
