"The digestion of the stored food and its ascent through the tracheal tubes when growth is resumed in…
"Diagram showing the transport of food through the sieve tubes, medullary rays and tracheal tubes, and…
"Diagram showing some types of unusual growth in thickness...C, portion of a cross section of stem of…
"Diagram to show path of stored food upward through the tracheal tubes, and through the phloem portion…