PLATE 15 



Spiranthes aestivalis Rich. 



1, I a. Plant from St Martin Vesubie, above Nice, July 22nd, 19 14. 



2, From near Geneva, July, 1929. 



3, 4. Enlarged flowers of latter. 



5 . Column, side view. 



6. Front view, after removal of viscidium. 



7. Pollinia attached to viscidium. 

 Figs. 5-7 much enlarged. 



