as constituting a small family, differing essentially both from 

 Rosacese and Spirseaceae in their erect ovules, and from the 

 latter also in the valvular aestivation of their calyx." But I 

 think there must be some inadvertence or typographical error 

 in this paragraph, or possibly both combined ; for certainly 

 Kageneckia has horizontal, not erect ovules, and an imbricated 

 not valvular calyx. I see no more difference between them 

 and Rosaceas than between Spiraea and Potentilla. The 

 unisexuality of the flowers is certainly no mark of distinc- 

 tion, for Fragaria is hardly otherwise ; and the convolute 

 cotyledons of Kageneckia have their parallel in Chamaemeles. 



