Explanation of Plate 28 



I. Ascophaxus cixereus (Crouan) Boud. 



a. Plants natural size. 



b. One plant X 10. 



c. Aseus and paraphysis X 700. 



d. One spore X 1200. 



II. Saccobolus kerverxi (Crouan) Boud. 



a. Plants a little enlarged. 



b. One plant X 25. 



c. Aseus and paraphyses X 800. 



d. Aseus to sliow operculum X 800. 



e. Diagram section X 25. 



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