. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 81 germinate in a similar manner. Conidia germinate freely only if they are chilled. ^^ A. Candida (Pers.) Roussel.*' Sori on all parts of the host except the roots, white or rarely light-yellow, prominent and rather deep- seated, variable in size and shape, often confluent and frequently producing marked distortion of the host; conidiophores hyaline, clavate, about 35-40 x 15-17 m; conidia, globular, hyaline, with uniformly thin walls, 15-18 fi; oospores, much less common than conidia, usually c
. The fungi which cause plant disease . Plant diseases; Fungi. THE FUNGI WHICH CAUSE PLANT DISEASE 81 germinate in a similar manner. Conidia germinate freely only if they are chilled. ^^ A. Candida (Pers.) Roussel.*' Sori on all parts of the host except the roots, white or rarely light-yellow, prominent and rather deep- seated, variable in size and shape, often confluent and frequently producing marked distortion of the host; conidiophores hyaline, clavate, about 35-40 x 15-17 m; conidia, globular, hyaline, with uniformly thin walls, 15-18 fi; oospores, much less common than conidia, usually confined to stems and fruits, chocolate-colored,. Fig. 53.—A. bliti, young oogo- nium and antheridium show- ing nuclei. After Stevens. Fig. 54.—a. bliti, showing differ- entiation of ooplasm and periplasm, the nuclei in mito- sis. After Stevens. Fig. 55.—A. bliti, an- theridium showing the multinucleate tube. After Ste- 40-55 p.; epispore thick, verrucose, or with low blunt ridges which are often confluent and irregularly branched. This is the most widely distributed and most common species of the genus. It occurs throughout the world on a large number of cruciferous hosts, and often gives rise to very pronounced hypertrophy. Practically all cultivated crucifers, cabbage, radish, turnip, etc., are subject to attacks of this fungus. In Europe the caper and mignonette are attacked by the same species. It has been reported in New York on Tropceolum.^* A. ipomoeae-panduranse (Schw.) Sw.^^' "" Sori amphigenous or caulicolous, white or light yellow, prominent, superficial, 20 nmi., rounded, often confluent and frequently producing marked distortions of the host; conidiophores hyaline, 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 Stevens, Frank Lincoln, 1871-1934. New York : Macmill
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
