38 ORCHIDS. 



lidota, but several other genera at present referred to 

 them. 



The genera with powdery, granular, or sectile pollen, 

 cannot be classified so conveniently by modifications of 

 that part, but are readily divided into three natural tribes 

 by peculiarities in the anther. 



In some (Ophrecz) the anther is erect, not hinged to 

 the column but continuous with it, and stands above the 

 stigma, the pollen masses having their points directed to 

 the base of the lobes of the anther. 



In others (Arethusea) the anther is hinged to the col- 

 umn, upon the end of which it is placed transversely like 

 a lid. 



And finally in others (Neotteoe) it is also hinged to the 

 column, but is placed at its back so as to be nearly par- 

 allel with the stigmatic surface. 



If to these three we add the Cypripedea^ which has 

 two anthers while all the others have one only, we find 

 the order divided into seven tribes, of which the follow- 

 ing is a tabular view. 



A TABULAR VIEW OF THE TRIBES OF ORCHIDACE^. 

 I. Anther one only. 



A. Pollen masses waxy. 



a. No caudicula or separable stigmatic gland. 

 TRIBE I. MALAXED OR MALAXIDE^E. 



b. A distinct caudicula, but no separable 



stigmatic gland. 

 TRIBE II. EPIDENDRE^E. 



C. A distinct caudicula united to a deciduous 

 stigmatic gland. 

 TRIBE III. VANDE^E. 



