. Botany for high schools and colleges. Botany. mi^'' MVGOItmi. 239 to form a mycelium; that is always the result of the growth of spores from the sporangia. {a) In the study of the Moulds it is almost always necessary to make use of alcohol for freeing the specimens of air ; afterward they usually. Fig. 162.—Piptoeephalis Freseniana, parasitic npon the liypiise, M., M, M, of 3fucor Mucedo. m, m, parasitic hyplise, attaclied to tlieir liost by the haustoria, h ; c, conid- ial spores ; s, s, the two branches which conjugate and form the zygospore, Z. Highly magnified.—After Brefeld. require to
. Botany for high schools and colleges. Botany. mi^'' MVGOItmi. 239 to form a mycelium; that is always the result of the growth of spores from the sporangia. {a) In the study of the Moulds it is almost always necessary to make use of alcohol for freeing the specimens of air ; afterward they usually. Fig. 162.—Piptoeephalis Freseniana, parasitic npon the liypiise, M., M, M, of 3fucor Mucedo. m, m, parasitic hyplise, attaclied to tlieir liost by the haustoria, h ; c, conid- ial spores ; s, s, the two branches which conjugate and form the zygospore, Z. Highly magnified.—After Brefeld. require to be treated with a dilute alkali, as a weak solution of am- monia or potassic hydrate, which causes the hyphae to swell up to their original proportions before drying ; care must be taken that the hyphas and spores are not unduly swollen, or serious mistakes may be made. (&) In the careful study of the Moulds it is necessary to resort to arti- ficial cultures of the different species, in order to be able to follow them. 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 Bessey, Charles Edwin, 1845- [from old catalog]. New York, H. Holt and company
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