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BAMBLE IHf THE Tf. OF SPAIK. 115 



also a Zinarta, which I am inclined to think the Z. Prestrandriis 

 of DeCandoUe, whether this be a good species or not; its flowers 



Elatine 



base. 



with 



plant 



spuria 



hastate, as in L. Elatine, and I have thought it might be a hybrid 

 between them, but the teeth at the base struck me as something 

 I had not observed before, I did not notice at Santander either 

 L. spuria or L. Elatine : this plant seems to take the place of 

 both. I have never seen the intermediate plant in Sussex, where 

 both species are abundant, and often growing together. 



There are two walks near Santander very beautiful in them- 

 selves and very interesting to the botanist. The first is to a rock 

 called Pena di CastiUo, or the Eock of Castillo. This is a rugged 

 hill above 600 feet high, about a mile from the town, and itself 

 nearly a mile long, but very narrow, so that you walk along the 

 ndge witb a rocky precipice on the one hand and a steep slope on 

 the other. It rises abruptly from the general level, and is uncon- 

 nected with anything else about it. It is, I believe, of mountain 

 limestone, which is said in this part of Spain to abound in cala- 



limestone formations 



greensand 



them. 



leamt to distinguish 

 t beautiftd views over 



surrounding moimtains 

 re wanders over the net 



the open Bay of Biscay. To the west, or rather I believe to the 

 south-west, we distinguish three groups of mountains, which in May 

 ^ere entirely covered with snow. At the beginning of July, when 

 I left Santander, two of these groups offered only detached spots 

 and lines of snow. The third, the Sierras Albas, still exhibited it 



great 



Puente 



^Tar, the house which was my very pleasant home. On this rock 

 I fi^st noticed Genista hispanica, Erinus alpinus, Linaria ori^ani" 

 folta^ and Ikucrium pyrenaicum 



various 



■hr' -J, 





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v^ 



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afterwards. Orchis parviflora grows in tolerable plenty on 

 the slope of the north side ; but I was surprised to see on such a 

 rock several moisture-loving plants, as Valeriana dioica, Lathtfrvt 

 palustris, &c. There is also a small quantity of Anemone Hepatiea 

 and Saxifraga Geum. The ridge of the j-ock aflfords, however, tlie 

 i>est harvest. Here were Centra iitTim Caldtram and Conyz^ 



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