. The fungi which cause plant disease . Plant diseases; Fungi. .1 B Fia. 131.—U. necator. Photomicrographs of perithecia oq surface of leaf. A, Magnified 8 times. B, Magnified 35 times. After Bioletti. specially resistant cells of the mycelium which develop within knotty swellings near the haustoria.''" U. salicis (D. C.) Wint. on willow and poplar in Europe, Asia, and America, U. aceris (D. C.) Sacc. and U. circinata C. &. P. on maple are common species. U. flexuosa Pk. occurs on Ji^sculus. and elm, U. clandestina (Biv.) Schr. on elm, U. pmnastri (D. C.) Sacc. on species of Prunus, e
. The fungi which cause plant disease . Plant diseases; Fungi. .1 B Fia. 131.—U. necator. Photomicrographs of perithecia oq surface of leaf. A, Magnified 8 times. B, Magnified 35 times. After Bioletti. specially resistant cells of the mycelium which develop within knotty swellings near the haustoria.''" U. salicis (D. C.) Wint. on willow and poplar in Europe, Asia, and America, U. aceris (D. C.) Sacc. and U. circinata C. &. P. on maple are common species. U. flexuosa Pk. occurs on Ji^sculus. and elm, U. clandestina (Biv.) Schr. on elm, U. pmnastri (D. C.) Sacc. on species of Prunus, especially P. spinosa in Europe. tJ. mori Miy. is on Morus in Japan.'"' Several other species of small importance affect numerous hosts. Podosphaera Kunze (p. 175) Perithecia globose or globose-depressed; ascus solitary, sub- globose, 8-spored; appendages equatorial or apical, dark-brown or colorless, dichotomously branched at the apex, branches simple. 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 : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfungi, bookyear1913
