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 : — 



Hypnuni umbratum. 



Pyienaicum, 



plicatutn. 



flagellare. 



striatulum. 



caespitosum. 



crassinervium. 



Vaucheri. 



pumiluni. 



campestre. 



Stai'kii. 



Miihlenbeckii. 



prateiise. 



Haldaniamim. 



heteropteruni. 



catenulatum. 



Sprncii. 



tricliophorum. 



planifolium. 

 Isothecium rufescens. 



chryseum. 

 Leskea rostrata. 



longifolia. 

 Anacamptodon splachnoides. 

 Mielichoferia nitida. 

 Catoscopium nigritum. 

 Bartramia mai'chica. 

 Bryum acuminatum. 



polymorphum. 



Zierii. 



concinnatum. 



Ludwigii. 



obcoiiicum. 



julaceum. 

 Mnium spinosnm. 



Milium spinulosum. 



medium. 

 Aulacomnioii aiidrogynum. 

 Physcomitrium acuminatum. 

 Tortula alpina. 



latifolia. 



aciphylla. 



papulosa. 

 Dicranum fulvuin. 



longifolium. 



Sauteri. 

 Arctoa fulvella. 

 Anodus Doniiianus. 

 Orthotrichum Bruchii. 



rivulare. 



uniigerum. 

 Hedvvigia imberbis. 

 Grimmia anodon. 



curvula. 



sulcata. 



atrata. 

 Encalypta commutata. 



rliabdocaipa. 

 Polytiichum sexangulare. 

 Fissidens grandifrons. 

 Sarcoscyphus adustus. 

 Aliculavia compressa. 

 Jungermannia sphaerocarpa. 



Gentbiana. 



cordifolia. 



Lyoni. 



Francisci, 

 Lejeunia ovata. 

 Frullania fragilifolia. 

 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. F'rullania fragilifolia. 



Fissidens grandifrons. Dumortiera irrigua. 



The number of Musci and Hepaticse 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, 



