Mr. R. Spruce on the Musci and Hepaticce of the Pyrenees. 93 



Leskea rostrata and attenuatu, Physcomitrium acuminatum, Tor- 

 tula ccespitosa, Dicranum fulvum, Fissidens grandifrons, &c. Tor- 

 tula chloronotos reappears in the isle of Teneriffe. There are only 

 the following species whose occurrence westward of the Pyrenees 

 has not yet been recorded : — 



Hypnum Pyrenaicum. Tortula inclinata. 



Vaucheri. Encalypta ligulata. 



Isotheciuin Philippianum. Buxbaumia iiidusiata. 



Bryum polymorphum. Plagiochila Pyrenaica. 



Milium medium. Scapania apiculata. 



Of the few mosses which grow on the southern slope of the 

 Pyrenees, only one species [Tortula ccespitosa) was not found at 

 all on the northern. The Spanish Pyrenees have in fact a pecu- 

 liarly arid aspect (to the eye of a cryptogamist), and correspond 

 well with the distant view I have had of the dry and naked 

 sierras of Spain*. 



If we now compare the three districts of the Pyrenees, above 

 defined, one with another, we find a considerable number of 

 species peculiar to each. The following mosses, gathered in the 

 Western Pyrenees, were none of them observed in the Central 

 and Eastern Pyrenees. [Those species marked with a (f) are 

 peculiar to the sandy plains of the Landes.] 



Hypnum strigosum. Physcomitrium ericetonim. 



mega])olitaiium f. acuminatum. 



caespitosum t. Tortula ambiguaf. 



trichophorum. papillosa. 



Catoscopium nigritum. latifolia. 



Bryum Tozeri. csespitosa. 



ccespiticium. Trichostomum luridum. 



erythrocarpon. subulatum f. 



torquescens. Dicranum spurium. 



platyloma. Weisia cirrhataf. 



Muelleri f . Wimmeriana. 



Mniuin spinosum. Gymnostomum calcarenm. 



Funaria convexaf. Ptychomitrium pusilium. 



Entosthodon Templetonif. Orthotrichum crispulum. 



* Cavanilles, in liis ' Observaciones sobre la Historia Natural, &-c. del 

 Reyno de Valencia (Madrid, 1795),' amongst all the localities which he so 

 minutely describes, mentions but one of bryological promise, where he ob- 

 served the solilary moss which enters into his catalogue of the plants. In 

 speaking of the mountains of Valldigna (p. 218) he says, " Los montes per 

 donde estan expuestos a^ mediodia son secos, y que no hay fuentes en sus 

 raices : al contrario las faldas septentrionales de todos ellos estan scmhradas 

 de sitios humedos y frondosos, y en las raices luicen fuentes abundantes. 

 .... En el valle de Barig son innumerables las fuentes que nacen desde 



Aldaya hasta Puigmola En estos sitios hiimedos y sombrios esfd 



siempre viva la naturaleza, cubierto el suelo de vegetales, y casi siembre de 

 flores : alii se disputan las plantas el terrenn. La doradilla (Ceterach), el 

 polipodio commi, el pteris {Pi. aqitilina) y la jungermania allanada {Jg. 

 complanata) occupan las hendeduras de las pefias.'' 



