. Fungi; their nature, influence, and uses;. Fungi. SEXUAL EEPKODUCTION. 16? over one towards the other until their tops touch like a vice, each limb of which rapidly increases in size. Each of these arcuate, clavate cells has now a portion of its extremity isolated by a partition, by means of which a new hemispherical cell is formed at the end of each thread at its point of junction with the opposed thread. These cells become afterwards cyliudrical by pressure, the protoplasm is aggregated into amass, the double membrane at the point of first contact is absorbed, and the two confluent masses


. Fungi; their nature, influence, and uses;. Fungi. SEXUAL EEPKODUCTION. 16? over one towards the other until their tops touch like a vice, each limb of which rapidly increases in size. Each of these arcuate, clavate cells has now a portion of its extremity isolated by a partition, by means of which a new hemispherical cell is formed at the end of each thread at its point of junction with the opposed thread. These cells become afterwards cyliudrical by pressure, the protoplasm is aggregated into amass, the double membrane at the point of first contact is absorbed, and the two confluent masses of protoplasm form a zygospore invested with a tubercular coat and enveloped by the primary wall of the two. Fig. 95.—Zygospore of Miicor phyconiyces, conjugating cells. Duiing this formation of the zygospore, the two arched cells whence the zygospore originated develop a series of dichotomous processes in close proximity to the walls which separate them from the zygospore. These processes appear at first on one of the arcuate cells in successive order. The first makes its appearance above upon the convex side ; the succeeding ones to the right and left in descending order ; the last is in the concavity beneath. It is only after the development of this that the first process appears on the opposite cell, which is followed by others in the same order. These dichotomous pro- cesses are nothing more than branches developed from the arcuate, or mother cells. During all these changes, while the zygospore. 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 Cooke, M. C. (Mordecai Cubitt), b. 1825-; Berkeley, M. J. (Miles Joseph), 1803-1889. New York, D. Appleton and Co.


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