RosALES.] CALYCANTHACEiE. 541 



fertile and partly sterile, being turned outwards. This Order is also characterised by the 

 singular structure of the wood, a peculiarity originally remarked by Mirbel in one spe- 

 cies, and which I have since ascertained to exist in all. In the stems of these plants 

 there is the usual deposit of concentric circles of wood around the pith, and in addition 

 four very imperfect centres of deposition on the outside next the bark ; a very unusual 

 structure. A good figure of this interesting fact has been given by Mirbel in the 

 Annales des Sciences Naturelles, vol. 14. p. 367. It must be also added that the woody 

 tissue of this Order exhibits disks extremely Uke those of Conifers. 



Natives of North America and Japan. 



The aromatic fragrance of the flowers is their well-kno\vn quaUty. It appears that 

 this also exists in their bark, which is consequently employed, in the case of C. floridus, 

 as a substitute for Cinnamon in the United States. 



GENERA. 



Calycanthus, L. 



Buttneria, Duham. 



Beureria, Ehret. 



Basteria, Adans. 



Pompadonra, Bouch. 

 Chimonanthus, Lindl. 



Meratia, Nees. 



Numbers. Gen. 2. Sp. 6. 



MagnoliacecB. 

 Position. — Rosacece. — CALYCANTHACEiE. — Pomacese. 

 MyHacece. 



