. Elementary biology; an introduction to the science of life . Fig. II. Forms of roots 7,tap-root of dandelion ; 2, fibrous root of buttercup ; ^,bundle (or " fascicled ") root of dahlia; 4, fleshy root of beet been mentioned are all tap-roots ; and a number of trees, as certain kinds of maples, also produce tap-roots. When a tap- root is injured or cut off, some of the side roots turn and grow downwards, although in a few cases the tip of the tap-root, when not too much injured, can regrow a new tip and continue the main line of growth. 71. Root pressure. We have found that when osm
. Elementary biology; an introduction to the science of life . Fig. II. Forms of roots 7,tap-root of dandelion ; 2, fibrous root of buttercup ; ^,bundle (or " fascicled ") root of dahlia; 4, fleshy root of beet been mentioned are all tap-roots ; and a number of trees, as certain kinds of maples, also produce tap-roots. When a tap- root is injured or cut off, some of the side roots turn and grow downwards, although in a few cases the tip of the tap-root, when not too much injured, can regrow a new tip and continue the main line of growth. 71. Root pressure. We have found that when osmosis takes place in a root there is likely to be an excess of movement in one direction. We should expect more to come into the
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