. The British rust fungi (Uredinales), their biology and classification. Uredineae. Fig. 20. P. Falcariae. Formation â of secidiospoies (after Ditt- schlag) : a, tlie basal cell; b, an aecidiospore-mother-cell; c, the same in the act of conjugate division (the nucleoli are seen in the middle); d, the inter- calary cell cut off. Fig. 19. Puccinia Falcariae. Con- jugation of two female cells to form the basal cell of the aecidio- spore-ehaiu (after Dittschlag). The uppermost cell on the left in a does not belong to the others. Each fertile cell has a sterile cell above it. In /;, the first conju
. The British rust fungi (Uredinales), their biology and classification. Uredineae. Fig. 20. P. Falcariae. Formation â of secidiospoies (after Ditt- schlag) : a, tlie basal cell; b, an aecidiospore-mother-cell; c, the same in the act of conjugate division (the nucleoli are seen in the middle); d, the inter- calary cell cut off. Fig. 19. Puccinia Falcariae. Con- jugation of two female cells to form the basal cell of the aecidio- spore-ehaiu (after Dittschlag). The uppermost cell on the left in a does not belong to the others. Each fertile cell has a sterile cell above it. In /;, the first conjugate division is just com- pleted (Diagrammatic). fuse are in most cases exactly alike, and therefore, if they represent potential female cells, each of them would naturally be provided with a trichogyne in equal degree, if at all. 0 9. 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 Grove, William Bywater. Cambridge, Univ. Press
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