. Foundations of botany. directions, and thereforepay attention only to thestrongly colored 8i)ots orlines. What conclusions can bedrawn from this experimentas to the course followed bythe sap? From the familiarfacts that ordinary for-est trees apparentlyflourish as well after thealmost complete decayand removal of theirheartwood, and thatmany kinds will liveand grow for a consider- ahlp timP nftPr a nno- nf ^^^ ^^^ - Channels for the Movement ofciDie time alter a ring Ol ^.^t^j. upward and downward. Ijark extending all round The heavy black lines in roots, stems, and,1 ? \r V Vv leaves show t
. Foundations of botany. directions, and thereforepay attention only to thestrongly colored 8i)ots orlines. What conclusions can bedrawn from this experimentas to the course followed bythe sap? From the familiarfacts that ordinary for-est trees apparentlyflourish as well after thealmost complete decayand removal of theirheartwood, and thatmany kinds will liveand grow for a consider- ahlp timP nftPr a nno- nf ^^^ ^^^ - Channels for the Movement ofciDie time alter a ring Ol ^.^t^j. upward and downward. Ijark extending all round The heavy black lines in roots, stems, and,1 ? \r V Vv leaves show the course of the tibro-vascular tne trunK nas Oeen re- bundles throu{,h which the principal move-moved, it may readily be *^*« ^^ ^^^*^^ ^^^^ p^«^-inferred that the crude sap in trees must rise through someportion of the newer layers of the wood. A tree girdledby the removal of a ring of sap wood promptly dies. 118. Downward Movement of Liquids. — Most dicoty-ledonous stems, when stripped of a ring of bark and then. 110 FOUNDATIONS OF BOTANY stood in water, as shown in , develop roots only at or
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1901
