306 Mr Don's New Classification of the Cichoracew. 



out of 287 CompositcB^ 114 belong to C Ichor acecB ; and in the 

 Grecian Flora, the total number of Compositce is 310, of which 

 102 are of this family. Their number appears to decrease con- 

 siderably eastward; for in the Flora of the Crimea, of 301 

 Compositce, 86 belong to Cichoracece; and in the Siberian 

 Flora, there are only 33 out of 176. As subdivision is abso- 

 lutely necessary in all extensive families, in order to facilitate a 

 knowledge of the individuals of which they are composed, I 

 have therefore attempted to separate the CichoracecB into cer- 

 tain groups, the characters of which are given in the following 

 arrangement. A list of the genera belonging to each is also 

 added, and such as are new I have denoted by an asterisk. 



In order to render this memoir as complete as possible, I have 

 added the characters of the new groups, which are here pro- 

 posed for the first time ; and also of such of the other genera as 

 have been hitherto imperfectly defined. The latter have been 

 entirely remodelled, and many of them may also be regarded as 

 new combinations of species. There still remain, however, a few 

 genera which I have not had an opportunity of examining in 

 sufficient detail, to enable me to assign to them their particular 

 stations in this family. The anthers of Ciclioracea, like the 

 rest of Composite, are unilocular, and composed of two valves, 

 — an important character, which does not appear to have been 

 before noticed. 



Fam. CICHORACE^, Juss. 



Flosculi ligulati, hermaphroditi, uniformes : UguM apice 5-dentata, 6-nervia : 

 nervis rectis, parallelis, parum infra dentium sinus furcatis. AnthercB val- 

 vulis angustissimis, crista membranacea pellucida coronatae, basi bisetae 

 (setis dentibusve membranaceis) s. ligula simplici truncata auctae. Stig- 

 mata libera, filiformia v. semicylindrica, obtusa, papillosa. Achenia nunc 

 apice calva. 

 Plantse lactescentes. Folia alterna. Flores saepi^s lutei. 



Trib. 1. HIERACEiE. Receptaculum epaleatum. Anlherae basi interiore li- 

 gula simplici membranaceS. truncata auctae. Involucrum polyphyllum. 

 Genera. Ilieracium. Hapalostephium.* Crepis. Prenanthes. Harpalyce.* 

 Chorisma.* Andryala, L. Schreb. Rothia, Schreb. Willd. Lapsana, 

 L. Schreb. 



