Botanical Notices from Spain. — 193 
_of the Sierra de la Nieve, which has a number of interesting plants. 
From a third of the way up was seen the pretty Senecio minutus, DC. 
(Cineraria, Cay.), in great abundance; higher up in the rock-clefts 
Narcissus Jonquilla, L., and the beautiful Ranunculus blepharicarpus, 
Boiss., as well as a very minute Sazifraga and S. granulate L. 
affin.; and on dry grass-plots on the summit Arabis auriculata, Lam., 
A. verna, R. Br., Draba verna, L., Lepidium petreum, L., Sisymbrium 
rigidulum, Lag., Erysimum canescens, Rth., various grasses, &c. 
From hence I returned to Yunquera, crossing many ridges and val- 
leys of the mountain-chain, on whose steep rocky walls grows the 
pretty Galium pulvinatum, Boiss., in thick beds, which however was 
not yet in flower; I gathered also on the way a very narrow-leaved 
form of Pinus halepensis, Mill., in fruit and flower, which is frequent 
throughout the whole Serrania. 
The two following days I devoted to a visit to the high mountain- 
chain of Yunquera. Accompanied by an experienced guide, I left 
Yunquera on the morning of the 27th of April, and soon entered the 
Barranco Bacamon, a narrow rocky valley, through which the mule- 
path ascends to the upper parts of the mountains, and where, amongst 
other rare plants, Linaria trisiis occurs, but is very rare. The 
whole Sierra, as well as probably a great part of the entire Serrania, 
was formerly thickly covered with forests of Abies Pinsapo, Boiss. 
But these have been so destroyed that trees of this pine are now 
almost exclusively met with only in the higher mountain and alpine 
regions. At a height of about 3000 feet the acclivities of the valleys 
are seen covered with low pinsapo bushes. I remarked everywhere 
in plenty, Scilla campanulata, Ait., Echium albicans, Lag., various 
Helianthema, &c. After ascending for some hours we came to a 
wide, cauldron-shaped valley, open toward the east, called E] Caucén, 
whose borders reached up to the alpine region. In the clefts of the 
rocks Savifraga biternata, Boiss., occurs in luxuriant beds, a species 
diffused over the whole of the upper portion of the mountain, also 
S. granulate L. aff., and upon moist boulders Veronica precoz, All., 
Cardamine hirsuta, L., Arabis verna, A. auriculata, Viola tricolor, var. 
arvensis, and V. Demetria, Prol., first found here by Prolongo, a 
pretty little species with yellow flowers, which is met with in abun- 
dance throughout the whole of the alpine region of this chain. The 
south border of the Caucén terminates at its east end in an immense 
piled-up mass of rock, called Tajo de la Caina, which is somewhat 
dangerous to explore. This rock is the only habitat at present 
known. of Centaurea Clementei, Boiss. ; it was just beginning to un- 
fold its leaves, which are on both sides thickly covered with dazzling 
white wool. Between this rock, the Caucén and a second more 
eastern valley called Canada la Perra, is a broad rocky ridge, on 
which, among other plants, occur in plenty Taraxacum obovatum, 
DC., T. levigatum, DC., Gagea polymorpha, Boiss., Narcissus Jon- 
quilla, L., and the pretty and very viscous Sazifraga Arundana, Boiss. 
In the upper parts of the Canada la Perra commence the trees of 
Abies Pinsapo, which were densely hung with red male cones, and 
also Quercus alpestris, Boiss., which however were now entirely leaf- 
Ann. & Mag. N. Hist. Vol. xvii. 
