GEOGRAPHICAL BOTANY. 343 



Pedicularis pyretiaica, 9000'. 

 Crocus nudiflorus, 7500'. 

 Anictangium cilia turn, 8400'. 

 Pannelia chrysoleuca, 5400' 9000'. 



cartilaginea, elegans, cinerea, badia, 9000'. 

 Lecidea vesicularis biformis, 6000' 7500'. 



polycarpa, atrobrunnea, morio, geogmphica, umbilicata, 9000'. 

 Umbilicaria cylindrica, 6000'--9000'. 



Some interesting letters, written by M. Willkomrn 

 during a journey in Spain, have been published in the ' Bo- 

 tanische Zeitung' (1844-5). They commence in May 1844, 

 bearing date from Valencia, where the author remained 

 until the middle of June. He then went to Madrid, 

 botanised at Aranjuez in the beginning of July, passed 

 over the Sierra Morena, reached Granada, and during 

 the latter part of the summer and the autumn, explored 

 the Sierra Nevada and the Alpuxarras. In the present 

 report, we shall confine ourselves to the first part of the 

 journey, intending to recur to the notices regarding the 

 south of Spain next year, when the conclusion of Boissier's 

 illustrated work, together with Willkomm's observations 

 of 1845, will conjointly furnish a more copious illustra- 

 tion of that part of the subject. In the Huerta of Va- 

 lencia, the original vegetation is greatly displaced by 

 cultivation : wheat, rice, and hemp are principally culti- 

 vated ; mulberry trees, olives, and fruits belonging to the 

 south are common,, date-palms, from 40 to 60 feet 

 high, are frequently met with. On the Lagune Albufera 

 is a wood of Pinus ffalepensis, containing abundance of 

 the original plants of this district : the underwood here 

 consists of Quercus coccifera, Myrtus, and Cham&rops, 

 and growing with them we find Pistacia Lentiscus, 

 Rhamnus lycioides, Erica arborea, Eosmarinus, Juniperus 

 Oxycedrus, and Euscm aculeatus. The adjacent sandy 

 hills contain Cistus albidus and salvifolius ; Passerina 

 hirsuta and Solatium sodomeum, the stems of which are 

 of the thickness of the arm. 



The Sierra de Chiva, 1 2 miles north of Valencia, belongs 

 to the limestone mountains, which separating from the 



