. Plant studies; an elementary botany. Botany. 2Y2 PLANT STUDIES fiiKilly deadened spots on the leaves, where the tissues have been killed. From this internal mycelium numerous sporojihores arise, coming to the surface of tlie host and securing the scattering of their spores, which fall u])on other leaves and germinate, the new niycelia pene- trating among the tissues and begin- ning their ravages. The sporophores, af- ter rising above the surface of the leaf, branch freely; and many of them risiiig near together, they form little velvety patches on the surface, suggesting the name " down
. Plant studies; an elementary botany. Botany. 2Y2 PLANT STUDIES fiiKilly deadened spots on the leaves, where the tissues have been killed. From this internal mycelium numerous sporojihores arise, coming to the surface of tlie host and securing the scattering of their spores, which fall u])on other leaves and germinate, the new niycelia pene- trating among the tissues and begin- ning their ravages. The sporophores, af- ter rising above the surface of the leaf, branch freely; and many of them risiiig near together, they form little velvety patches on the surface, suggesting the name " downy ; 6 f. Fig. 'SA'.\. a hrancti of Peronospora in contact with two cells of a host ])lant, and sending into them its large hanstoria.—After 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 Merle, 1851-1928. New York, D. Appleton and Company
Size: 2263px × 1105px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1900
