Archive image from page 221 of The cultivated evergreens; a handbook. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada cultivatedevergr00bail Year: 1923 ( 150 THE CULTIVATED EVERGREENS This is due to the fact that the conditions for the spreading of the causal fungi are ideal in the forest, but are much less favorable outside of these domains. Most of the fungi causing these wood-rots are on one general type commonly known as 'bracket-fungi' or 'polypores.' One of the toadstools {Armillaria
Archive image from page 221 of The cultivated evergreens; a handbook. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada cultivatedevergr00bail Year: 1923 ( 150 THE CULTIVATED EVERGREENS This is due to the fact that the conditions for the spreading of the causal fungi are ideal in the forest, but are much less favorable outside of these domains. Most of the fungi causing these wood-rots are on one general type commonly known as 'bracket-fungi' or 'polypores.' One of the toadstools {Armillaria mellea), however, is responsible for an important root-rot, not only of conifers but also of a great variety of other trees and even of herbaceous plants. The wood may be attacked in various ways. The heart wood alone may be decayed to a greater or less extent. This may take place in the roots, at the butt or higher up in the trunk and branches. In most cases, the parts at- tacked are so weakened that the tree is eventually uprooted or broken off by the wind. Less commonly, the sapwood and bark of living trees are also attacked and rotted. In such cases, death of certain parts or of the whole tree may ensue, due to an interference with the passage of food materials. Infection takes place through injuries exposing the heart- wood or sapwood, as the case may be. Spores of the fungi concerned, falling on the injured spots, germinate under suitable conditions, producing a small tube which penetrates 18. Sporophores on trunk of tree.
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Keywords: 1920, 1923, archive, bailey_l_h_liberty_hyde_1858_1954, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, conifers, drawing, evergreens, historical, history, illustration, image, new_york_the_macmillan_company_london_macmillan_co, new_york_the_macmillan_company_london_macmillan_co_ltd_, page, picture, print, reference, vintage
