. Botany of the living plant. Botany; Plants. Fig. 332. Germinating uredospores, showing various stages of development of the germ- tubes, a, b, c. Very highly magnified. (After Marshall Ward.) but later in the season. They differ from them in being closely packed and firmly attached, as well as in structure. Each spore is spindle- shaped, and is partitioned into two cells, each with a dark brown coat (Fig. 334)- Like other cells of the mycelium and the uredospores. Fig. 333- Longitudinal section of a leaf of Wheat, showing a germ-tube from a uredospore passing through a stoma (a) into the int
. Botany of the living plant. Botany; Plants. Fig. 332. Germinating uredospores, showing various stages of development of the germ- tubes, a, b, c. Very highly magnified. (After Marshall Ward.) but later in the season. They differ from them in being closely packed and firmly attached, as well as in structure. Each spore is spindle- shaped, and is partitioned into two cells, each with a dark brown coat (Fig. 334)- Like other cells of the mycelium and the uredospores. Fig. 333- Longitudinal section of a leaf of Wheat, showing a germ-tube from a uredospore passing through a stoma (a) into the intercellular space (b). Very highly magnified. (After Marshall Ward.) themselves, each cell contains two nuclei. They do not germinate till the following spring. In March or April, after a few hours in water, each cell puts out a delicate tube (Fig. 335). This, after segmenting to form four distal cells, constitutes what has been called the promyceliutn,. 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 Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
Size: 2331px × 1072px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookpublis, booksubjectbotany, booksubjectplants
