. Journal of botany, British and foreign . Fig. 2. Peronospora infestans.—Oogonia and antheridia from badly-diseased leaves ofPotato after a weeks maceration in water x 400. (Gard. Chron., p. 69.)K. Eesting-spore with coat of cellulose. L. Eesting-spore washed out ofcoat by maceration. M. Semi-mature resting-spores. N. Fig. 3. The -(4r^6/ro^7<sofMontagneand Berkeley X 400. (Gard. Chron., p. 69. From Journ. Hort. See, vol. i.) been formed in the stem of the Potato. Oogonia (FF) and anthe-ridia (G) are seen in contact, as well as the resulting spore with itscell
. Journal of botany, British and foreign . Fig. 2. Peronospora infestans.—Oogonia and antheridia from badly-diseased leaves ofPotato after a weeks maceration in water x 400. (Gard. Chron., p. 69.)K. Eesting-spore with coat of cellulose. L. Eesting-spore washed out ofcoat by maceration. M. Semi-mature resting-spores. N. Fig. 3. The -(4r^6/ro^7<sofMontagneand Berkeley X 400. (Gard. Chron., p. 69. From Journ. Hort. See, vol. i.) been formed in the stem of the Potato. Oogonia (FF) and anthe-ridia (G) are seen in contact, as well as the resulting spore with itscellulose wall (H) and separated mature resting-spores (JJ) in thecells of the stem. At E arc some zoospores. From these figures it SEXUAL REPRODUCTION OF PEEONOSPORA INFESTANS. 341
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