190 Botanical Notices from ^pain. 



distance they appear quite white, and have frequently deceived me. 

 On the margin of the alpine rivulets and on moist alpine meadows 

 grow Saa:ifraga stellatns, L., Parnassia palustris, 1j., Euphrasia mi- 

 nima, Schleich., and some liverworts ; in bogs of the mountain re- 

 gion Juncus hufonius, J. glaucus and a Senecio, whilst the fissures of 

 the limestone rocks are filled especially by Linaria origanifolia and 

 Antirrhinum molle. On the fallow fields around Trevelez I found 

 here and there Jasione montana, L,, a rare plant in Andalusia, and 

 very frequent Carlina corymhosa, whicli grows high up into the al- 

 pine region, as well as Polygonum Persicaria and lapathifolium. On 

 walls and hedges in the environs of the village grow Senecio linifo- 

 lius, L., very frequent and in full blossom, Artemisia Absinthium, L., 

 Mentha rotundifolia, sylvestris and Pulegium, Brassica adpressa,BoisQ., 

 Crambe filiformis, Jacq., Rumex pulcher, Helichrysum serotinum, 

 Boiss., Althcea officinalis, Rubus hispanicus, Pteris aquilina, Cystopteris 

 fragilis, Asplenium Trichomanes, A. Adiantum-nigrum and Ceterach 

 officinarum, all which plants I have for the most part met with on 

 the north side. The Mulahacen yielded a somewhat richer booty ; 

 I began its ascent on the 15th of September, after having in vain 

 attempted to ascend it three weeks before from the north side, when, 

 instead of the Mulahacen, I came upon the Cerro Alcasava, and 

 found my way back only with great danger over the frightful rocks 

 of the northern declivity. The ascent to the highest summit of the 

 Sierra Nevada (according to the measurement of D. Simon de Roxas 

 Clemente equal to 4259^ varas castellanas, or 12,779 feet, which 

 appears to be somewhat exaggerated) is not at all dangerous starting 

 from Trevelez, at least in fine weather, which I was so fortunate as 

 to have. After ascending for six hours, I came at noon to a pretty 

 steep and pathless acclivity, on the highest rocks of the summit, and 

 obtained such a magnificent view over a great portion of Spain, 

 bounded by the sea and the coast of Africa, as is seldom presented. 

 With the exception of some lichens, there is only found between the 

 loose masses of rock of the summit, which consist of mica, contain- 

 ing an endless number of garnets, the Artemisia granatensis, with 

 the pretty Erigeron frigidum, Boiss., which is distributed over the 

 whole of the upper snow region, but everywhere only sparingly, in 

 company with Viola nevadensis, Galium pyrenaicum and Ptilotrichum 

 purpureum. On the side opposite to the Picacho de Veleta, about 

 100 feet below the summit, I found about a dozen specimens of 

 Papaver pyrenaicum, Gouan., already in fruit, gathered by M. Bois- 

 sier on the same spot seven years ago, without doubt the rarest plant 

 of the Sierra Nevada, as hitherto no other habitat is known, and 

 even here it occurs very seldom. On the wet alpine meadows on 

 the southern declivity of the Mulahacen and on the margins of the 

 rivulets I found the dwarf Gentiana Boryi, Boiss., immersed among 

 mosses, in company v/ith G. alpina and G. Pneumonanthe, var. de- 

 pressa, Boiss., Ranunculus angustifolius, DeC, and Plantago nivalis. 

 On a subsequent excursion of two days, which I made on the 16th 

 and 1 7th of September toward the Puerto del Lobo lying nearly at 

 the east end of the Sierra, I found that the eastern portion of the 



