. Fig. 125.—Exobasidium rhododendri, on leaves of rhododendron, slightly reduced ; 2. basidia and spores of same, highly mag ; 3, Hypochnus solani on lower part of a potato haulm, slightly reduced ; 4. mycelium and basidia of Hypochnus, highly mag. a pea to that of a cherry. These are at first pale green, at length often becoming red or brownish. When full grown the surface is covered with a delicate whitish bloom, due to the presence of innumerable minute conidia, produced by budding in a yeast-like fashion from the basidiosi)ores. The mycelium is very al)undant between the cells at the j^eri
. Fig. 125.—Exobasidium rhododendri, on leaves of rhododendron, slightly reduced ; 2. basidia and spores of same, highly mag ; 3, Hypochnus solani on lower part of a potato haulm, slightly reduced ; 4. mycelium and basidia of Hypochnus, highly mag. a pea to that of a cherry. These are at first pale green, at length often becoming red or brownish. When full grown the surface is covered with a delicate whitish bloom, due to the presence of innumerable minute conidia, produced by budding in a yeast-like fashion from the basidiosi)ores. The mycelium is very al)undant between the cells at the j^eriphery of the gall, but scanty elsewhere. .Small globose haustoria are present in the cells of the host. Basidia covering the surface of the galls, clavate, sterigmata
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Photo credit: © The Bookworm Collection / Alamy / Afripics
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
