NOTE. 



Mr. Spacli has published, in the Nouvelles Annales du Museum, Vol. 4. 

 what he no doubt considers an answer to some of the criticisms that his perform- 

 ances among Onagraceae have called forth. As a specimen of his style of con- 

 ductlno- an argument let the reader take the following. He complains that his 

 genus Boisduvalla is stated by me not to have a fringed chalaza, as if he had 

 said that it had one, and he denies that he ever did state this, (Boisduvaliarum 

 semina fimbriata esse nuUibi diximus.) Now it is true that in the character of 

 Boisduvalia this is not mentioned, but on the other hand the main character of 

 the subsection Dermospermae, in which that genus is stationed, depends upon 

 " semina ad chalazam margine membranaceo aucta." I was not before aware 

 that Mr, Spach did not consider it necessary for his genera (!) to agree in cha- 

 racter with the sections under which they arc stationed. 



