. Contributions to Canadian biology. Marine biology; Natural history. No. 99. Thuiaria similis. Thuiaria t-nera (Sars). Trophosome. Stem slender; branching loose from all sides of the stem; branches dichotomously branched; hydrothecse alternate, distant, enlarged above the base, then tai>ered to the margin, one-half free; margin with two blunt teeth; operculum with two flaps or one abcauline flap. Gonosome. Gonangia single on the branches, oval, with short collar and wide aperture; no spines or annu- lations. No. 100. Thuiara tenera. Thuiaria thuja (Linnseus). Trophosome. Main stem rigid, n
. Contributions to Canadian biology. Marine biology; Natural history. No. 99. Thuiaria similis. Thuiaria t-nera (Sars). Trophosome. Stem slender; branching loose from all sides of the stem; branches dichotomously branched; hydrothecse alternate, distant, enlarged above the base, then tai>ered to the margin, one-half free; margin with two blunt teeth; operculum with two flaps or one abcauline flap. Gonosome. Gonangia single on the branches, oval, with short collar and wide aperture; no spines or annu- lations. No. 100. Thuiara tenera. Thuiaria thuja (Linnseus). Trophosome. Main stem rigid, not very stout, branches from all sides of the stem, stift", branching dichotomously several times; ultimate branches rigid, distally forming a dense tuft (bottle brush); hydro- thecse alternate, closely placed, almost wholly im- mersed, tubular; margin without distinct teeth; oi^er- culum of one abcauline flap. Gonosome. Gonangia in rows that may be crowded on the stem and proximal portions of the branches, oval, with short collar and large terminal aperture; a short distinct pedicel; surface without annulations or No. 101. TMiiaria Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Biological Board of Canada; Canada. Marine Biological Station. Toronto, Biological Board of Canada
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