28 CYPRIPEDIUM ARIETINUM. RAM'S-IIEAD MOCCASIN-FLOWER. 



cimen used in our illustration to the kindness of Professor Sar- 

 crent, of the Cambridge Botanic Garden, Massachusetts. Ac- 

 cording to Professor Asa Gray, it has to be looked for in cold 

 swamps and damp woods, flowering about June. It is regarded 

 as the smallest flowered species of all American Cypripedhwis. 



