336 Description of a Species of Salix found in Braemar. 



lower leaves of the twigs are (as usual) much smaller, narrow.eUiptical, more 

 obscurely serrate ; the young leaves slightly downy. Petioles short, smooth, 

 reddish. Catkins lateral and terminal, cylindrical, obtuse, rather lax. Ger- 

 mens subulate, downy, tapering into a long, slightly downy style, their very 

 short stalk downy. Stigmas obtuse, and with the style, rather deeply di- 

 vided and separated. Scales of the catkin oblong, dark-brown, hairy, the ter- 

 minal hairs nearly as long as the scales. 



This supposed species, of which I have seen only a female plant, is closely 

 allied to Salices prunifolia, carinata, and myrsinites. 



The leaves are not carinate, recurved, nor glaucous beneath, as in S. ca- 

 rinata, and are more distinctly serrate. The germens also, are very different 

 from those of that species, being much .longer, with a more lengthened style, 

 and not silky, but sparsely and rather coarsely downy. 



From pninifolia, which has ovate leaves, glaucous beneath, it differs in the 

 very different form of the leaves, the much greater elongation of the germens, 

 and the comparative shortness of their down. 



With myrsinites it agrees in general aspect, and the smoothness and reticu- 

 lation of the leaves ; but these organs are more elongated and acute, less rigid, 

 thinner, and of a darker colour, while the calkins are longer, and the germens 

 are not quite sessile ; the leaves are more narrow and more acuminate than 

 Fig. /, PI. viii. of Flora Lapponica, which represents the narrow-leaved va- 

 riety of S. myrsinites. With Fig. 6, PI. vii. of Smith's edition of Flora Lap- 

 ponica, which is said to represent Salix myrsinites, it agrees pretty well as to 

 the form of the leaves, but the catkins and germens there represented are 

 totally different. The figure of S. myrsinites, in Salictum Woburnense, which 

 agrees with a specimen cultivated in the Edinburgh Royal Botanic Garden, 

 is also very different from our plant, not less in the short, almost orbicular 

 form of the leaves, than in the narrower catkins and broader germens. 



The leaves are about an inch in length, and a quarter of an inch in breadth. 

 When dried, they assume an olivaceous or brownish tint, and in their reti- 

 culations bear some resemblance to those of Arbutus alpina. 



On the Lacustrine Basins of Baza and Alhama in the Province 

 of Granada in Spain *. By Colonel Charles Silvertop, 

 F. G. S. Communicated by the Author. 



Basin of Baza. 



xwo basin-shaped tracts are met with in the province of 

 Granada, and to the north of the primitive chain, which borders 

 and runs parallel to the southern Mediterranean coast of Spain, 



• A geological sketch communicated to Roderick Impey Murchison, Esq, 

 Secretary to the Geological Society, and read before the Geological Society 

 during the last season. 



