. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 44 MYCOLOGY from a green alga like Vaucheria. With our present knowledge, it is impossible to name any one existing alga as the progenitor of a definite fungous form, but we are safe in assuming in a general way that certain phyla of fungi have been derived from certain phyla of algae, by the loss of chlorophyll and in the loss of an independent existence. Another view, which is open to argument, is that certain of the prototrophic. jJJuIl^ Fig. 13.—Development of Mucor mucedo. a, b, c,
. A text-book of mycology and plant pathology . Plant diseases; Fungi in agriculture; Plant diseases; Fungi. 44 MYCOLOGY from a green alga like Vaucheria. With our present knowledge, it is impossible to name any one existing alga as the progenitor of a definite fungous form, but we are safe in assuming in a general way that certain phyla of fungi have been derived from certain phyla of algae, by the loss of chlorophyll and in the loss of an independent existence. Another view, which is open to argument, is that certain of the prototrophic. jJJuIl^ Fig. 13.—Development of Mucor mucedo. a, b, c, d, Stages in the formation of zygospore; /, sporangium; g, mature sporangiospores; h, one germinating. {After Schneider, Pharmaceutical Bacteriology, p. 142.) filamentous bacteria to which attention has been previously called have been the direct progenitors of certain of the filamentous fungi, but on account of the character of the reproductive organs in the lower true fungi their derivation from green algae is the more probable, and mycologists even speak of the algal fungi referring especially to aquatic genera, such as Saprolegnia, which like their algal ancestors not only retain the general morphologic features of the algae, but also live in an. 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 Harshberger, John W. (John William), 1869-1929. Philadelphia : P. Blakiston's Son & Co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1917
