DE CANDOLLE'S PRODROMUS. 19 



and Ardisia Picheringia^ Torr. and Gr. To the small order 

 Theophrastacece^ A. DC, our author has joined Jacquinia, 

 a West Indian genus, one species of which extends into 

 Florida. In the order Sapotacece^ the editor has proposed 

 one new North American species of Bumelia. In Ebenacece 

 we have only our Persimmon. From this the order Styraceoe 

 (embracing Symplocinece and Halesiacece of Don) is dis- 

 tinguished chiefly by the position of the cells of the ovary 

 opposite the lobes of the calyx. Hopea is kept as a mere 

 section of Symplocos ; including a dozen Asiatic species as 

 well as our S. tinctoria. 



The order Oleacem is published from the manuscripts of 

 the late Professor De Candolle. The American species of 

 Fraxinus still require the labors of a monogra^^her. 



The order Jasminece is made to comprehend Bolivaria (of 

 which there is at least one Texan species) and Menodora ; 

 and the family Bolivariacem is shown to have been founded 

 upon misconceived characters. 



For the elaboration of the Apocyjiacece, we are indebted to 

 the younger De Candolle. The only North American genera 

 are Amsonia (is not Echites Fraseri^ Roem. and Schultes, 

 the A. ciliata, Walt. ?), Apocynum and Forsteronia (i^. dif- 

 formis, J)C.,^ Echites difformis, Walt.). 



The order Asclepiadece has been very faithfully studied by 

 Decaisne. All the North American representatives belong 

 to the tribe of true Asclepiadece, with the exception of 

 Gonolobus, of which we have several species (one of them, 

 collected by Dr. Short, forms the new G. tilicef Gnus'), and 

 one, or possibly two species of Chthamalia, Decaisne. 3fe- 

 tastelma Fraseri is probably a native of the West Indies, 

 not of Carolina. Enslenia albida, we notice, is about to be 

 figured in the forthcoming volume of Delessert's Icones ; as 

 also is Podostigma. Acerates includes ten, chiefly North 

 American species. Asclepias is reduced to forty-four species, 

 all of which are American, and the greater part extra-tropi- 

 cal. We are happy to learn that the plates of the fifth volume 

 of the " Icones Selectse " of the liberal Delessert — chiefly 

 devoted to the illustration of the eighth volume of the " Pro- 

 dromus " — are already in the hands of the engraver. 



