. Comparative morphology of Fungi. Fungi. Fig. 107.—Monascus purpureus. Development of copulation branches. C. conidium. CI, 2 X 420; 3 X 725; 4, 5 X 835; after Schikorra, 1909.) abjointed and coils helically about the antheridium. It is further divided into a three- to four-nucleate terminal cell, the trichogyne, and a four- to six-nucleate subterminal cell, the ascogonium. The nuclei of the tricho- gyne subsequently degenerate. Usually the antheridium forms a papilla toward the trichogyne, open communication results, and the male nuclei migrate into the trichogyne. Thereupon the wall between
. Comparative morphology of Fungi. Fungi. Fig. 107.—Monascus purpureus. Development of copulation branches. C. conidium. CI, 2 X 420; 3 X 725; 4, 5 X 835; after Schikorra, 1909.) abjointed and coils helically about the antheridium. It is further divided into a three- to four-nucleate terminal cell, the trichogyne, and a four- to six-nucleate subterminal cell, the ascogonium. The nuclei of the tricho- gyne subsequently degenerate. Usually the antheridium forms a papilla toward the trichogyne, open communication results, and the male nuclei migrate into the trichogyne. Thereupon the wall between trichogyne and ascogonium is temporarily dissolved, the male nuclei migrate into the ascogonium, pair with the female nuclei, and migrate into the ascog- enous hyphae. The antheridium collapses and disintegrates (Fig. 107, 3 to 5). Meanwhile the cell group has become closely surrounded by sterile sheath hyphae which apparently nourish the swollen, spherical ascogo- nium and hence are gradually dissolved in the core of the fructification. The peripheral layers are brown and pseudoparenchymatous, forming the perithecial wall. The ascogenous hyphae divide (according to Dan- geard) ; as in previous forms, into binucleate cells which swell into eight- spored asci. According to Schikorra, the development of the asci takes place according to the Pyronema 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 Gäumann, Ernst Albert, 1893-1963; Dodge, Carroll William, 1895-. New York [etc. ] McGraw-Hill Book Company, Inc.
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