"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…

"Grinnellia Americana. a, structure of the leaf; b, vertical section of a conceptacle, showing the chains of spores." -Whitney, 1911

Marine Red Algae

"Grinnellia Americana. a, structure of the leaf; b, vertical section of a conceptacle, showing the chains…