moiu'Hmlogy of orchid flowers. 



17 



Kodriguezia venusta. 

 With lowLT sepals connate into a boat-like body. 



Masdfvallia aiiiabilis. 



Petals, lip and coluinii concealed within the 



sepaliue tube s. 



Cypripediiini caricinuni. 

 With ribbon-like petals. 



