Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 402 UREDINEAE. G. Ellisii l>erk. (Jii Cluiiiuuxjjpark tJujui(l<:n. The aecidial stage on Pifrvs Mains and P. arhutifolia. On red cedar (Junijjnws virr/ininna): G. macropus Lk. The aecidia and pycnidia occur on Pyrus Malm, P. coronaria, P. arhiti/olia, Crataegus tumeniosa, C. Douglasii, and Amelanchier canadensis; they are known as Fig. 237.—Spores of Gym. hiscptatuiii. (After Woernle.) Fig. 2
Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplant00tube Year: 1897 402 UREDINEAE. G. Ellisii l>erk. (Jii Cluiiiuuxjjpark tJujui(l<:n. The aecidial stage on Pifrvs Mains and P. arhutifolia. On red cedar (Junijjnws virr/ininna): G. macropus Lk. The aecidia and pycnidia occur on Pyrus Malm, P. coronaria, P. arhiti/olia, Crataegus tumeniosa, C. Douglasii, and Amelanchier canadensis; they are known as Fig. 237.—Spores of Gym. hiscptatuiii. (After Woernle.) Fig. 238.—Spores of Gyin. Ellisii. (After Woernle.) Fig. 239.—Spores of Gym. macropu*. (After Woernle.) Rocstelia pirata. This is one of the commonest causes of apple-rust and of the deformation known as ' cedar apples ' (Fig. 240), The anatomy of the latter structures has been described by Sanford.' G. clavipes Cooke et Peck, occurs on Junipcriis communis. Its aecidia and pycnidia are found on Pyrus Mains, P. arhuti- folia, and Amelanchier canadensis. ' Sanford, Annaln of Botany, i., 1887.
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