21 l6 



A TEXTBOOK OF THEORETICAL BOTANY 



Fig. 2055. — Odontoglossum. Flower of a 

 cultivated variety. 



Fig. 2056. — Odontoiilossum cordotum. A, Flower. B, Pollinia attached to the retinaculum. 

 C, Column with perianth removed showing the anther cap with retinaculum projecting 

 below and the large stigmatic opening. {After Bateman.) 



