OF PLANTS CALLED COMPOSITiE. 263 



notice of the trunks from which these branches arise, either 

 in his text or plates. 



Van Berkhey, in his Dissertation on Compositse, pub- 

 lished at Leyden in 1760, though he makes no mention of 

 the nerves of the corolla in his text, yet in all the magnified 

 figures he has given both of ligulate and tubular florets, 

 correctly represents the trunks of the primary vessels, with- 

 out, however, noticing their ramification in the lacinise. I 

 am anticipated therefore by this author's figures exactly in 

 the same degree as by the passage contained in M. Cassini's 

 second memoir. 



The accurate Schmidel, in the few Compositss which 

 occur in his Icones, has correctly represented the trunks of 

 the primary vessels, but has equally omitted their rami- 

 fications. 



In the Analysis Florum of Batsch, a work published in 

 1790, the object of which was to give an idea of the struc- 

 ture of the natural families of plants, by a minute de- 

 scription and magnified figures of one or more species 

 selected from each. Coreopsis tripteris occurs ; and although 

 the vessels of its tubular fioret are very indistinctly figured, 

 yet both their trunks and branches are correctly de- 

 scribed. The same author however, who in 1802 pub- 

 lished an ingenious work on the natural families of [si 

 plants,^ takes no notice of the vessels of the corolla in the 

 character of Compositse which he has there proposed. 



In the figures of syngenesious plants given by Schkuhr,^ 

 wherever the ligulse of Cichoracece are magnified, the 

 trunks of the nerves are correctly represented ending in the 

 sinuses ; unless in one plate containing Laduca virosa and 

 Sonchus sibiricus, in both of which the vessels are made to 

 pass through the axes of the teeth ; but in no case are the 

 marginal branches noticed. It is singular that this gene- 

 rally accurate author, in the many magnified figures he has 

 given of tubular florets, has only in two cases represented 

 the trunks of their vessels, namely in Echinops Bitro, 

 where they are correctly placed, and in Silphium trifoliatum. 



' Tabulae aSinitatum regni vegetabilis. 

 ' In Botanisclies Handbucli 



