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"Piece of the frond of Fucus platycarpus furnished with receptacles." -Lindley, 1853

Brown Alga

"Piece of the frond of Fucus platycarpus furnished with receptacles." -Lindley, 1853

"Fucus platycarpus...Section of a conceptacle much magnified." -Lindley, 1853

Brown Alga

"Fucus platycarpus...Section of a conceptacle much magnified." -Lindley, 1853

"Fucus platycarpus...3. jointed branching hairs detached from the sides of the conceptacle and bearing antherids; 4. an antherid full; 5. an antherid with only one antherozoid left in it; 6. Antherozoids." -Lindley, 1853

Brown Alga

"Fucus platycarpus...3. jointed branching hairs detached from the sides of the conceptacle and bearing…

"Branch of Gulfweed (Sargassum bacciferum). a, vesicle with leaf; b, mucronate vesicle." -Whitney, 1911

Gulfweed Branch

"Branch of Gulfweed (Sargassum bacciferum). a, vesicle with leaf; b, mucronate vesicle." -Whitney, 1911

Known as rockweed or bladder wrack, this species of seaweed is in the Fucaceae family of brown algae. "Fructifying Tip of a Frond of Rockweed (Fucus vesiculosus). a, a, air-bladders; b, b, conceptacles." -Whitney, 1911

Fructifying Tip of a Frond of Rockweed

Known as rockweed or bladder wrack, this species of seaweed is in the Fucaceae family of brown algae.…