94 SWARZ ON THE GENERA OF ORCHIDE..^, 



which (in his opinion) were sufficient for distin- 

 guishing the different genera. From the changes 

 to which the lip and spur are subject, this naturalist 

 endeavoured (perhaps with reason), to demonstrate 

 the insufficiency of the Linnean arrangement of 

 Orchidese, and therefore fouaded his own upon 

 the parts peculiarly belonging to fructification, or 

 what he calls machina staminifera, in qua fovea ungui- 

 nosa est, qua ad ovariavidetur ducere* His method, 

 however, has not been so generally adopted as 

 that of Linnasus, though Crantz endeavoured to 

 give it additional strength, and Scopoli adopted 

 it in his Flora Carniolica, as well as Allioni in 

 his Flora of Piedmont. 



-In the mean time Apanson had given an 

 arrangement, comprehending feven of the eight 

 Linnean genera; founding it, however, on such 

 uncertain characters, as petal a convoluta, pen- 

 dentia, &c. it would not merit to be mentioned', 

 were it not for his having first guessed, that the 

 Orchideas had only a single bilocular anther ; on 

 which I shall presently remark further. 



* Act. Helv. T. 4- p- 91 • 



