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



south in Italy. So far however as I can ascertain, the follow- 

 ing species have their southern limit in the Pyrenees : — 



Hypniim umbratum. 



Pyrenaicum. 



plicatum. 



flagellare. 



striatulum. 



caespitosum . 



crassinervium. 



Vaucheri. 



piimilum. 



campestre. 



Starkii. 



Muhlenbeckii. 



pratense. 



Haldanianum. 



heteropterum. 



catenulatum. 



Sprucii. 



trichopliorum. 



planifolium. 

 Isothecium rufescens. 



chryseum. 

 Leskea rostrata. 



longifolia. 

 Anacamptodon splachnoides. 

 Mielichoferia nitida. 

 Catoscopium nigritum. 

 Bartramia marchica. 

 Bryum acuminatum. 



polymorphum. 



Zierii. 



concinnatum. 



Ludwigii. 



obconicum. 



julaceum. 

 Mnium spinosum. 



Milium spinulosum. 



medium. 

 Aulacomnion androgynum. 

 Physcomitvium acuminatum. 

 Tortula alpina. 



latifolia. 



aciphylla. 



papillosa. 

 Dicranum fulvum. 



longifolium. 



Sauteri. 

 Arctoa fulvella. 

 Anodus Donnianus. 

 Orthotrichum Biuchii. 



rivulare. 



urnigerum. 

 Hedvvigia imberbis. 

 Grimmia anodon. 



curvula. 



sulcata. 



atrata. 

 Encalypta commutata. 



rhabdocarpa. 

 Polytrichum sexangulare. 

 Fissidens grandifrons. 

 Sarcoscyphus adustus. 

 Aliculavia compressa. 

 Jungermannia sphserocarpa. 



Genthiana. 



cordifolia. 



Lyoni. 



Francisci. 

 Lejeunia ovata. 

 Frullania fragilifoHa. 

 Dumortiera irrigua. 



Few species can be expected to attain their eastern limit in 

 the Pyrenees (lying as they do on the western side of Europe), 

 and I can find only these six, of which all but one {Fissidens 

 grandifrons) had been previously supposed to be confined to our 

 own islands : — 



Hypnum caespitosum. Lejeunia ovata. 



Tortula papillosa. Frullania fragilifolia. 



Fissidens grandifrons. Dumortiera irrigua. 



The number of Musci and Hepaticae which are not found any- 

 where to the westward of Europe, either on the continent of 

 America or in the intermediate islands, is considerable, and they 

 mostly attain their western limit in the British Isles. Some 

 species which reach their western European limit in the Pyrenees 

 (not being found in the British Isles) reappear in N. America, 

 under nearly the same latitude : such are Hypnum Haldanianum^ 



