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 384 UREDINKAK. spores grow on needles and twigs of Coniferae, the aecidia on the leaves of various Eosaceae (Pomaceae). Five species occur in (rerniany, but there are many in America. Gymnosporangium clavariaefonne Jacquin. (Britain and Anu'rica.) The mycelium of this species perennates in twigs of Junijyeriis communis. Infection is brought about by aecidiospores. In the following year a swelling
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 384 UREDINKAK. spores grow on needles and twigs of Coniferae, the aecidia on the leaves of various Eosaceae (Pomaceae). Five species occur in (rerniany, but there are many in America. Gymnosporangium clavariaefonne Jacquin. (Britain and Anu'rica.) The mycelium of this species perennates in twigs of Junijyeriis communis. Infection is brought about by aecidiospores. In the following year a swelling of attacked places is evident, and this increases till death of the host ensues. In spring, about the beginning of April, little light- yellow cone-like structures break out on the swollen places,
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