The upright figure іп plate (262) shows the upper por- 
tion of the fertile fructescent frond frontwise, of the na- 
tural size; the crossed figure the back of the same, covered 
Әу sori or groups of fructifications. The figure in plate (263) 
shows the whole plant in the state it was when the drawing 
was made, diminished. On one side are a young barren 
frond and a young fertile frond; both covered with a whitish 
woolly pubescence. 
