. Cell intelligence; the cause of growth, heredity and instinctive actions, illustrating that the cell is a conscious, intelligent being, and, by reason thereof, plans and builds all plants and animals in the same manner that man constructs houses, railroads and other structures . FiG. 34.—Seeds of dandelion with tufts of hair -for parachutes. dispersal has been developed by certain plants known astumbleweeds or field rollers. These plants are profuselybranching annuals with a small root system in light orsandy soil. When the work of the season is over andthe absorbing rootlets have shriveled,
. Cell intelligence; the cause of growth, heredity and instinctive actions, illustrating that the cell is a conscious, intelligent being, and, by reason thereof, plans and builds all plants and animals in the same manner that man constructs houses, railroads and other structures . FiG. 34.—Seeds of dandelion with tufts of hair -for parachutes. dispersal has been developed by certain plants known astumbleweeds or field rollers. These plants are profuselybranching annuals with a small root system in light orsandy soil. When the work of the season is over andthe absorbing rootlets have shriveled, the plant is easilybroken from its roots by a gust of wind, and is trundledalong the surface like a light wicker ball, the ripe seedvessels dropping their seeds by the way. In case of an INTELLIGENCE OF THE CELL 255 obstruction, such as a fence, great masses of these tumble-weeds may be seen lodged against the windward method of dispersal is far more effective than ; but it is fitful, and its range usu-ally is not very great. Thistle-down may be floated intoa neighboring field, and a strong wind may carry thecomparatively heavy-winged fruits of the maple and theelm some distance; but at best the scattering is only over. Fig. 35.—Seeds of beggar-ticks with barbed appendages. a neighborhood. In many cases seeds or fruits or headsdevelop grappling appendages of various kinds, formingthe various burs, which lay hold of animals brushingpast; and so the seeds are dispersed. The skillful performance of the Russian thistle and thetumbleweed is wonderful, while they are growing duringthe summer. You can not possibly pull a plant out bythe roots, but as soon as it is ripe for seed dispersal, itis cut loose by the cells that made it, and stands ready 256 CELL INTELLIGENCE THE CAUSE OF EVOLUTION to travel with the first good wind and is made into around ball showing the intention and purpose of thebuilders. It is also so constructed that it hardly ever
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