. Comparative morphology of Fungi. Fungi. Fig. 133.—Parodiopsis Perae. 1. Hyphae with setae and young conidia, C. Parodi- opsis melioloides. 2. Section through the lower surface of a leaf with setaceous mat and immature perithecium. (1 X 250; 2 X 100; after Arnaud, 1918, 1923.) They are slightly reminiscent of the appressoria of the Erysiphaceae and possibly are related to haustoria. The stigmatocyst may develop the perithecia; it swells and divides into two cells, the terminal cell developing slowly to form the core of ascogenous tissue while the basal cell produces the perithecium in a manne
. Comparative morphology of Fungi. Fungi. Fig. 133.—Parodiopsis Perae. 1. Hyphae with setae and young conidia, C. Parodi- opsis melioloides. 2. Section through the lower surface of a leaf with setaceous mat and immature perithecium. (1 X 250; 2 X 100; after Arnaud, 1918, 1923.) They are slightly reminiscent of the appressoria of the Erysiphaceae and possibly are related to haustoria. The stigmatocyst may develop the perithecia; it swells and divides into two cells, the terminal cell developing slowly to form the core of ascogenous tissue while the basal cell produces the perithecium in a manner suggestive of that in the Laboulbeniales (Ryan, 1926). Thus the perithecia, as in Balladyna, arise from a single branch of a hypha. At maturity they are spherical and resemble the Erysiphaceae; they consist of a dark, often carbonaceous rind, and a hyaline ground tissue, the rosette of asci. The brown rind is generally homogeneous, as in Balladyna and the Erysiphaceae; occasionally, as a step in the. 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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