Fig. 61. A general view. Fig. 62. Its uncoiling spring condition. Fig. 63. The back of one of the smaller divisions of the leaf showing the collection of spore cases (sori). These are sometimes borne on special leaves, but in most of our American kinds on the backs of ordinary foliage leaves.
find, at the proper season, collections or rows of tiny, usually brownish dots. These contain often thousands of microscopic objects known generally as spores, and from this fact the dots are called spore-cases, or more technically sori. ([Figure 63].) The process by which new plants are formed is a
Aerial Roots of Fig Trees Hanging Over the Edge of a Cave in the Rain Forest, San Lorenzo, Santo Domingo. (Photo by the author. Courtesy of Brooklyn Botanic Garden.)