Notices of European Herharia. 15 



found in the herbarium of the late Richard, now in the possession 

 of his son, Prof. Achille Richard, which even contains a few 

 species that do not exist in the herbarium at the Royal Museum. 

 The herbarium of the celebrated Jussieu, a fine collection, which 

 is scrupulously preserved in its original state, by his worthy son 

 and successor, Prof. Adrien Jussieu, comprises many North 

 American plants of the older collectors, of which several are au- 

 thentic for species of Lamarck, Poiret, Cassini, &c. 



The herbarium of De Candolle at Geneva, accumulated through- 

 out the long and active career of this justly celebrated botanist, 

 and enriched by a great number of correspondents, is surpassed 

 by few others in size, and by none in importance. In order that 

 it may remain as authentic as possible for his published works, 

 especially the Prodromus, no subsequent accessions to families 

 already published are admitted into the general herbarium, but 

 these are arranged in a separate collection. The proper herbari- 

 um, therefore, accurately exhibits the materials employed in the 

 preparation of the Prodromus, at least so far as these were in Prof. 

 De Candolle's own possession. As almost twenty years have 

 elapsed since the commencement of this herculean undertaking, 

 the authentic herbarium is of course much less rich in the earlier 

 than in the later orders. The Composite, to which seven years 

 of unremitted labor have been devoted, form themselves an 

 herbarium of no inconsiderable size. It is unnecessary to enu- 

 merate the contributors to this collection, (which indeed would 

 form an extended list,) since the author, at least in the later vol- 

 umes of the Prodromus, carefully indicates, as fully as the work 

 permits, the sources whence his materials have been derived. 

 The paper employed is of an ordinary kind, somewhat smaller 

 than the English size, perhaps about fifteen inches by ten ; and 

 the specimens are attached to half-sheets by loops or slips of 

 paper fastened by pins, so that they may readily be detached, if 

 necessary, for particular examination. Several specimens from 

 different sources or localities, or exhibiting the different varieties 

 of a species, are retained when practicable ; and each species has 

 a separate cover, with a label affixed to the corner, containing the 

 name and a reference to the volume and page of the Prodromus 

 where it is described. The limits of genera, sections, tribes, &c. 

 are marked by interposed sheets, with the name written on pro- 

 jecting slips. The parcels which occupy each compartment of 



