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PLATE 45
Coilodesme rigida S. and G.
Fig. 7(5. Section perpendicular to the surface of the frond. X 125.
Fig. 77. Surface view. X 250.
Fig. 78. Cross-section. X 250.
Coilodesme oulligera Stroemf.
Punctaria chartacea S. and G.
Fig. 79. Cross-section of a sterile frond. X 250.
Sargassum Liebmanni J. Ag.
Fig. 81. A segment showing the character of the stem, leaves, fruit, and
vesicles. X 2.
Colpomenia sinuosa f.
Figs. 82, 83. Cross-section showing unusually long gametangia. X 250.
Fig. 84. Cross-sections. X 250'.
Fig. 85. Cross-section showing paraphyses and enlarged at outer end.
X 250.
Fig. 86. Cross-section showing some gametangia divided. X 250.
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