Explanation of Plate 41 



I. Hystekographium kaxsense Ellis & Everhart. 



a. Plants natural size on bark. 



b. One plant X 10. 



e. Aseus with spores and paraphyses X S00. 



d. Two spores X 1500. 



II. Hysterographitjm mori (Schw.) Eehm. 



a. Plants natural size. 



b. One plant X 10. 



e. Aseus with paraphyses and spores X 700. 



d. One spore X 1500. 



III. Hysterographium fraxini (Pers.) DeNotaris. 



a. Plants natural size. 



b. Aseus with paraphyses and spores X 800. 



e. One spore X 1500. 



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