. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. 42 Disease and Death of Trees â Generalities the wood body, \\hile the tree can go on rotting for years, to all aj)i) without detriment, its stability is under- mined, and finally a windstorm may la}- it low in full leaf and otherwise in full health. These fungi gain entrance to the wood through wounds made by broken or badly pruned branches, by broken bark or through injured, exposed roots. On the ragged surface of a broken branch stump, and even on a well-pruned but unprot
. The care of trees in lawn, street and park. With a list of trees and shrubs for decorative use. Trees; Trees. 42 Disease and Death of Trees â Generalities the wood body, \\hile the tree can go on rotting for years, to all aj)i) without detriment, its stability is under- mined, and finally a windstorm may la}- it low in full leaf and otherwise in full health. These fungi gain entrance to the wood through wounds made by broken or badly pruned branches, by broken bark or through injured, exposed roots. On the ragged surface of a broken branch stump, and even on a well-pruned but unprotected wound, dust and water collect and form a seed bed on which the fungus spores â cor- responding to the seeds of other plants, minute or microscopic, easily scattered b}- the winds â can locate and sprout. These grow into the wood by rootlike hy- phcp, which bore through and between cell-walls, branching mul- tifariously and forming a mass of white meshes penetrating the wood Fig ;Shelf "fungus or. jj^ ^^^ directions â the so-called the stem ot a pine, a, sound wood; b, resinous "Hght" mycclium. This draws its suste- wood; c, partly decayed ' , ,i ^ i . ⢠wood or punk; ^, layer of nance from the tree, oestroymg living spore tubes; e, old cell-walls and absorbing cell con- fiiled up spore tunes; f, fluted upper surface of the tents. As a conscquencc the wood fruiting body of the fungus, , ⢠^Urjnks cracks turns reddish which gets its food through <^^^^^s, snrmKs, cracKS, turns rtuaisii a great number of fine brown, or clsc becomes spongy and threads (the mvcelium), its n ⢠i i ⢠'-n^ i ⢠i vegetative tissue penetrating yellowish white. 1 he mechanical the wood and causing its destruction proceeds as the mv- decay. (Department of '^ Agriculture, Division of For- celitim proceeds. estry Bulletin, No. lo.) tâ n ^- r* â ^ ' ^ Finally, sometimes after years, the mycelium forms a fruit-body on the outside of the tree, the readily rec
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Keywords: ., bookauthorfernowbe, bookcentury1900, bookdecade1910, bookyear1910
