OF PLANTS CALLED COMPOSITE. 263
notice of the trunks from which these branches arise, either in his text or plates.
Van Berkhey, in his Dissertation on Compositae, pub- lished at Ley den 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 Composite 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 floret 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 usi plants, 1 takes no notice of the vessels of the corolla in the character of Compositae which he has there proposed.
In the figures of syngenesious plants given by Schkuhiy wherever the ligulae of Cichoracece are magnified, the trunks of the nerves are correctly represented ending in the sinuses ; unless in one plate containing Lactuca virosa and Sonchus sibiriciiSy 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 Ritro, where they are correctly placed, and in SilpMum trif diatom,
1 Tabulae affinitatum regni vcgetabilis.
2 In Botanisclics Handouch
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