NOTICES OF BOOKS. 95 
considerable number of new plants have been found within the last ten 
years, which have also, for the most part, not yet been delineated, and 
of which (like many of those discovered in Spain) but a few specimens 
exist in the herbariums of France and Switzerland. The rarity of these 
plants, the difficulty of procuring specimens of them, and the impor- 
tance which many of them possess when phytologically considered, ren- 
der them more worthy of a careful description and representation than 
the plants of any other part of Europe. 
* But not only the plants which have recently been discovered in those - 
countries require to be noticed ; there are also a number of those well 
known, partly belonging exclusively to those countries, and partly of 
such as are native within the circuit of the great Mediterranean Basin, 
which have never been published at all, or have been represented in an 
unsatisfactory manner and in works difficult of access, particularly those 
Which have been illustrated only by the old Spanish and Portuguese 
Botanists; as Ortega, Asso, Cavanilles, Boutelou, Clemente, Lagasca, 
Brotero, Abbé Pourret, ete. The author is placed in a most favourable 
position to offer exact descriptions and representations after original 
specimens of the greater part of these species, inasmuch as the Direc- 
tors of the Royal Botanical Museum at Madrid, in whose Herbarium 
the greater proportion of the species made known by the older botanists 
are to be found, have announced to him that they will place at his dis- 
posal duplicates of the original specimens. He has therefore resolved 
to publish complete and exact representations and description of such 
new and rare Plants of the South-west of Europe, as have only partially 
appeared or are not known at all, and he requests such Botanists of 
Europe, as may have been engaged in the discovery of Vegetation in 
those Lands, to assist him in the prosecution of his object by tendering 
any materials they may possess. Among those newly-discovered kinds 
which will find a place in the * Icones’ the following may be mentioned. 
**1. Those new kinds which have been discovered by Mr. Léon Dufour — 
in Valencia, Aragon, and Navarre; by M. Durieu de Maisonneuve in 
Austria; by Mr. Webb in South Spain and Portugal; by Count Hoff- 
mannsegg and Messrs. Link, Welwitsch, etc., in Portugal. 2. Those 
new kinds which were discovered by M. Boilieu (Boissier?) in Spain, 
but which did not appear in his ‘ Voyage.’ 3. Those new kinds dis- 
covered by M. Reuter in New Castile and in the Guadarrama Moun- 
tains in 1841. 4. Those new kinds discovered by the Author (Wil- 
