some Indian Selaginellas. 687 
length of the leaf, this being absent in the ordinary lateral or ventral leaves, 
though present in the dorsal leaves. The margins of the tuber leaves are 
Text-fig. 2. S. chrysocaulos. A, b, and c show diagrammatically a series 01 stages in the 
branching of a 4 surface tuber with the separation of the ventral rhizophore (y.~), subtended by its 
axillary leaf (a.l). br.v.s vascular supply of the vegetative branches ; v.v.s., vascular supply of 
the ventral rhizophore. x 30. 
also very minutely ciliate , 1 ciliation being present elsewhere only on the 
upper basal margin of the ventral leaves. 
The dried material was prepared for sectioning by treatment with lactic 
acid. Microtome sections (io/x thick) were cut in the case of four tubers, 
1 This is not shown in the figure. 
