. Comparative morphology of Fungi. Fungi. 158 COMPARATIVE MORPHOLOGY OF FUNGI must be considered a degeneration stage in our scheme of relationships, like its analogue in the Ustilaginales. This is much simpler as diplontic Endomycetaceae, which might be considered ancestors of S. Ludwigii, are unknown. Atichiaceae.—Before we leave the yeasts, we should mention a group which has long puzzled mycologists. It has been placed in the Floridieae, Fucaceae, Lichenes, Saccharomycetaceae, Perisporiaceae, Capnodiaceae, Myriangiaceae, Ascocorticiaceae and Bulgariaceae. Atichia forms. Fig. 98.—Atichia gl

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. Comparative morphology of Fungi. Fungi. 158 COMPARATIVE MORPHOLOGY OF FUNGI must be considered a degeneration stage in our scheme of relationships, like its analogue in the Ustilaginales. This is much simpler as diplontic Endomycetaceae, which might be considered ancestors of S. Ludwigii, are unknown. Atichiaceae.—Before we leave the yeasts, we should mention a group which has long puzzled mycologists. It has been placed in the Floridieae, Fucaceae, Lichenes, Saccharomycetaceae, Perisporiaceae, Capnodiaceae, Myriangiaceae, Ascocorticiaceae and Bulgariaceae. Atichia forms. Fig. 98.—Atichia glomcrulosa. 1. Thallus. 2 to 4. Propagula. after Neger, 1918.) (1 X 80; 2 to 4 X 400; gelatinous cushions on leaves and needles, apparently as epiphytes (Fig. 98, 1). These cushions are formed of sprout cells which develop ascospores in the superficial layers. Under favorable conditions these cells develop into a multitude of three-rayed reproductive bodies, called propagula (Fig. 98, 2 to 4), which are disseminated by wind and rain. They develop again to cushions (Hoehnel, 1910; Cotton, 1914; Neger, 1918). Perhaps they are highly developed yeasts, adapted to an epi- phytic existence, but one may not entirely discard the concept of a degen- eration of simple Discomycetes.. 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 work.. Gäumann, Ernst Albert, 1893-1963; Dodge, Carroll William, 1895-. New York [etc. ] McGraw-Hill Book Company, Inc.