DE CANDOLLE'S PRODROMUS. 17 



1. TuBULiFLOR-s: ; those with the perfect flowers tubular 

 and regularly five (or rarely four) toothed. 



2. Labiatiflor^ ; those with bilabiate, or two-cleft, per- 

 fect flowers. 



3. LiGULiFLORiE ; which have all the flowers strap-shaped. 



The first series includes about four fifths of the whole fam- 

 ily, which are arranged in five tribes, namely, Vernoniacece, 

 EupatoriacecB^ Asteroidece, Seneciohidece and Cynarece. The 

 second series consists exclusively of the Ifutisiacem and the 

 Nassauviacece, chiefly South American plants ; a single spe- 

 cies of Chaptalia is, we believe, the only North American 

 representative. The third series, comprising the Cichoracece^ 

 so readily known by their milky juice, and by having all 

 their florets ligulate, contains many North American repre- 

 sentatives. 



So many orders or separate genera of Mouopetalous plants 

 have been the subject of recent monographs, and so much 

 valuable assistance is also engaged for the ensuing portions 

 of the " Prodromus," that several volumes may be expected 

 at no very distant period. It may not be improper to state 

 that Mr. Boissier of Geneva is engaged in the preparation of 

 the Plumbaginem ; Mr. Duby of Geneva will prepare the 

 Primulacece ; Professor Dunal of Montpelier, the Solanece ; 

 Mr. Decaisne of Paris, the Asclepiadeoe ; and Mr. Bentham, 

 the Scrophularinece and Lahiatce. 



We can at length announce the publication of this im- 

 portant volume (viii.) ; the first of the series under the editor- 

 ship of the son of the great Genevan botanist,^ and which he 

 has appropriately dedicated to the memory of his illustrious 

 father. We are glad to state, that arrangements have been 

 made to expedite the publication of the succeeding volumes. 

 The printing of the ninth, it is said, has already commenced, 

 and its appearance may be expected in the autumn of the 

 present year. It will contain the LoganiacecB, Bignoniacece, 

 Cyrtandracece^ Sesamece, and Borraginem, from the notes 

 prepared by the late Professor De Candolle ; the Hydrophyl- 

 lacecB, by Alphonse De Candolle ; the Gentianacece^ by Grise- 

 1 The elder De Candolle died September 9, 1841. 



