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ME. J, ball's SPICILEGirM FLORJE MAEOCCAKJG, 285 



I 



I 



j tained in the herbarium of Mr. Bentbam (presented by bini to 



■ the national collection at Kew), and in that of my late lamented 



i friend M. Jacques Gay (purcbased by Dr. Hooker, and also 



,, given to the Kew Herbarium); so that I have bad the opportu- 



nity of examining original specimens of nearly all Salzmann'a 

 plants. 



In 1827 my excellent friend the late Philip Barker Webb spent 



tbree weeks at Tangier, and then visited Tetuan. where he was 



able to ascend two of the neighbouring mountains, and to discover 



ftinongst other novelties a new genus of Cruciferse, for which, up 



r , _ to the present time, no other locality is known. His collections, 



preserved along with the remainder of his great herbarium at Flo- 

 rence, have been examined by M. Cosson and by myself 



During the years between 1840 and 1870 many botanists touched 

 at Tangier, including my friend M. Boissier, with the late M. 

 Beuter, Dr. Lagrange, M. Blanche, M. Mares, and M. Jourdan. 

 Several of the plants collected by MM. Boissier and Eeuter were 

 described by them in a little volume styled ' Pugillus Plantarum 

 Novarnm Africae borealis Hispaniseque australis.' In that work 

 the criteria for the admission of new species, so justly maintained 

 in the great works on which M. Boissier's fame depends, were 



?^ somewhat unduly relaxed. 



In 1859 the late Eev. E. T. Lowe contributed to the * Proceed- 

 ' ings ' of this Society a list of plants observed by him in the im- 

 mediate neighbourhood of Mogador ; and most of these are pre- 

 served in the herbarium bequeathed by him to the Eoyal Gardens 

 at Kew» 



In June 1851 I made an attempt to reach the higher summits 

 of the Lesser Atlas in the neighbourhood of Tetuan ; but, owing 

 to the disturbed condition of the district, I was limited to the 

 immediate neighbourhood of the city, which, however, offers many 

 species of interest not found about Tangier. 



In 1869 my indefatigable friend, Mr. George Maw, was some- 

 what more successful than myself, and was permitted to ascend 

 part of the Beni Hosmar, previously visited by Webb. 



In 1867, chiefly through the influence and with the aid of M. 

 Cosson, whose intimate acquaintance with the flora of Northern 

 Africa is unrivalled by any competitor, the successful botanical 

 traveller Mr. Balansa was despatched to Mogador, with the object 

 of attempting to investigate the flora of the Great Atlas range as 

 far as circumstances would permit. Although receiving every 



