PLATE 50 



Orchis maculata L. 



Enlarged flowers showing variation in the shape of the lip. The sub- 

 species elodes was never seen by us in the district in the case of Nos. 1-20. 



1-3. St Gervais-les-Bains, June, 1924. 



4-9. Col de Balme, Switzerland, July, 1924. 



10-16. Argentiere, Switzerland, July, 1924. 



17. Sils Maria, Engadine, August ist, 1924. 



[8-19. Gryon, Switzerland, June, 1925. No. 19 is the hybrid Orchis 

 latifolia x maculata. 



20. Aix-les-Bains, France, May, 1926. 



21. S. Wales. 



22-25 a (life-size). Chalk downs, Winchester. 



