. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. INJURY CAUSED BY NON-PARASITIC ORGANISMS 6i fornian disease is considered to be due to an allied organism, P. californica (Viala and Sauv.). I have shown under the heading ' Orchid Spot,' that the supposed organism considered by Viala and Sauvageau as a member of the Myxomycetes, and named Flas/nodtophora, is merely a diseased condition of the cells of the host-plant, and that brunnisure of the vine and ' orchid spot' are entirely due to physical causes.
. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. INJURY CAUSED BY NON-PARASITIC ORGANISMS 6i fornian disease is considered to be due to an allied organism, P. californica (Viala and Sauv.). I have shown under the heading ' Orchid Spot,' that the supposed organism considered by Viala and Sauvageau as a member of the Myxomycetes, and named Flas/nodtophora, is merely a diseased condition of the cells of the host-plant, and that brunnisure of the vine and ' orchid spot' are entirely due to physical causes. Massee, Ann. Bot., 9, p. 421. Viala, Malad. de la Vigne, Ed. 3. Viala and Sauvageau,y*??//-/'/. de BoL, 1892. Strangling fungus {Thelephora iaci/iiala, Pers.) is an exceedingly common fungus on heather tracts and in woods. Fig. 8. — Thelephora laciniata, a non-parasitic fungus growing up the stem and suffocating a young larch. Reduced. and although not a parasite, it often proves highly injurious to young trees when first planted, by growing up the stem for some distance and enveloping the lower part of the seed- ling to such an extent that it is strangled or suffocated. The. 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 Massee, George, 1850-1917. New York : Macmillan
Size: 1555px × 1607px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
