

" are to each other. In both these, as well as in several 

 '* other cases that might be mentioned, there seems to be a 

 " necessity for the establishment of natural classes, to which 

 " proper names, derived from the orders best known, and 

 il differing perhaps in termination, might be given. 



" It is remarkable that the most general character con- 

 necting the different orders of the class now proposed, 

 and which may be named from its principal order Mal- 

 vaceae, should be that of the valvular estivation (the 

 ." folding previous to expansion) of the Calyx: for several, 

 " at least, of the genera at present referred to T'diacew, in 

 " which this character is not found, ought probably, for 

 " other reasons likewise, to be excluded from that order; 

 ** and hence perhaps also the Chlenacece, though nearly re- 

 ** lated, are not strictly referable to the class Malvaceae, 

 <e from all of whose orders, it must be admitted, they differ 

 (t considerably in habit." 



Sida grandtfolia has grown in the Berlin Collection to a 

 tree of twenty feet in height. 



Branches covered with a long close fur. Leaves round- 

 ishly cordate, unevenly denticulate, covered with a soft 

 pubescence, in the young plant about half a foot in length, 

 in the full-grown one about four inches long. Peduncles 

 two-three-flowered shorter^than the petiole. Capsules about 

 10, subti-uncated, long pointed, but little bigger than the 

 calyx, shaggy, three-seeded. 



