Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 OYMNOSPORANGILM. 39; the species already described in remaining closed at the apex, the spores escaping through trellis-like slits on the lateral walls of the peridia (Fig. 234). This fungus will not germinate on apple-trees, but on pears every leaf may be thickly covered with aecidia and pycnidia, and considerable damage to the crop thereby ensue (Fig. 233). Fig. 231.—Lougitudinalscctiou through
Diseases of plants induced by Diseases of plants induced by cryptogamic parasites; introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae diseasesofplants00tube Year: 1897 OYMNOSPORANGILM. 39; the species already described in remaining closed at the apex, the spores escaping through trellis-like slits on the lateral walls of the peridia (Fig. 234). This fungus will not germinate on apple-trees, but on pears every leaf may be thickly covered with aecidia and pycnidia, and considerable damage to the crop thereby ensue (Fig. 233). Fig. 231.—Lougitudinalscctiou through a conical teleutospore-sorus of Gymno- sporangium Sabinae. (After Woernle.) Fio. 2;i2.—Teleutospores of 0. mbiiwr. The elongated thin-walled ones arc lighter in colour than the thick-walled. (After WoenUe.) Infections on various hosts with Gymno>ipumn(jium sabinae from Sahina gave: Spore-form. Authoritv. I On Host-plant. Pyrus communis, Crataegus Oxyacantha, Mespilus gennan ica, - Pynis communis, Pyrus communis, „ , „ tomentosa, Pyrus commicnis, Pyrus communis, Crataegus Oxyacantha, (0 Postelia cancellata. Plowrifrht. Oerstedand De lijiry. Ratliay, Tubeuf, etc-. Eeess. E. Klebahn. ,, (uncertain).
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