ORCHIDEOUS TRIBE. 



589 



of woods, blooming in June. The flowers are fragrant 

 in the evening. H. viridis (Green Habenaria) and H. 

 dlbida (Small "White Habenaria) are small plants from 



HABENARIA BiFOLiA (Butterfly Orchis). 



6 to 8 inches high, the former with green flowers, the 

 latter wiih flowers which are white and fragrant. 



Lister a ovdta (Twayblade) grows from 12 to 18 inches 

 high, and is well marked by its bearing, about half way 



