Pacific Species of Antithamnion — Tokida and INABA 
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Fig. 12. Pleonosporium T ohyamanum Tokida and Inaba, sp. nov.: a, apical portion of a main axis; 
b, lower portion of a main axis, showing branching of the side branchlets on the lower segments of 
the branches, a and b, X 33. 
Fig. 13. Pleonosporium Tohyamanum Tokida and Inaba, sp. nov.: a, branch with sporangia; b, basal 
portion of a frond, showing rhizoids. a, X 40; b, X 65. 
