. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 386 THE NON-VASCULAR PLANTS (See Figure 185.) These haustoria penetrate the epider- mal cells of the lilac, and from them absorb food. Since the cells of the mesophyll are not injured by it, however, lilac leaves ap- pear to get along pretty well in spite of the mil- dew. Numerous little sporophores arise from the mycelium, and it is the abundance of spores which makes the myce- lium look like dust. This fungus, like bread mold, also has a sex method of re
. Plant life and plant uses; an elementary textbook, a foundation for the study of agriculture, domestic science or college botany. Botany. 386 THE NON-VASCULAR PLANTS (See Figure 185.) These haustoria penetrate the epider- mal cells of the lilac, and from them absorb food. Since the cells of the mesophyll are not injured by it, however, lilac leaves ap- pear to get along pretty well in spite of the mil- dew. Numerous little sporophores arise from the mycelium, and it is the abundance of spores which makes the myce- lium look like dust. This fungus, like bread mold, also has a sex method of reproduction. The sex organs are very small, but the structures which result from the sex process are not small. They are big enough to be seen with the naked eye. They look like dark-brown dots. They are called ascocarps. The outside of them is a thick-walled case, and the inside of them is what has resulted from the. Fig. 183. — Albugo Candida. A kind of para- site (white rust) which attacks members of the mustard family. The figure shows the appearance of a section of a mustard leaf cut through one of the parts attacked. Note the way in which spores are produced. The top row of cells is the epidermis of the host. It is finally ruptured and the spores escape. Note the way in which the hyphai (shaded) growth of the Oospore. burrow between the cells of the mesophyll For ^ oospore has a and send little suckers (haustoria) into the protoplasts. habit we have already. 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 Coulter, John G. (John Gaylord), b. 1876. New York, American Book Co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
