92 Mr. R. Spruce on the Musci and Hepatice of the Pyrenees. 
- south in Italy. So far however as I can ascertain, the follow- 
ing species have their southern limit in the Pyrenees :— — 
Hypnum umbratum, 
Mnuium spinulosum. 
Pyrenaicum., medium. 7 
plicatum. Aulacomnion androgynum. 
flagellare. Physcomitrium acuminatum. 
striatulum. Tortula alpina. 
czespitosum. latifolia. 
crassinervium, aciphylla. 
Vaucheri. papillosa. 
pumilum. Dicranum fulvuin. 
campestre. longifolium. 
Starkii. Sauteri. 
Miihlenbeckii. Arctoa fulvella. 
pratense. Anodus Donnianus. 
Haldanianum. Orthotrichum Bruchii. 
heteropterum. rivulare. 
catenulatum. urnigerum. 
Sprucii, Hedwigia imberbis. 
trichophorum. Grimmia anodon,. 
planifolium. curvula. 
Isothecium rufescens, suleata, 
chryseum. atrata. 
Leskea rostrata. Encalypta commutata, 
longifolia. rhabdoearpa. 
Anacamptodon splachnoides. 
Mielichoferia nitida. 
Catoscopium nigritum. 
Bartramia marchica. 
Bryum acuminatum, 
Polytrichum sexangulare. 
Fissidens grandifrons. 
Sarcoscyphus adustus. 
Alicularia compressa. 
Jungermannia spheerocarpa, 
polymorphum. Genthiana. 
Zierii. cordifolia. 
concinnatum. Lyoni. 
Ludvwigii. Francisci. 
obconicum. Lejeunia ovata. 
julaceum. Frullania fragilifolia. 
Mnium spinosum. 
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 cespitosum. 
Tortula papillosa. — 
Fissidens grandifrons, 
Lejeunia ovata. 
Frullania fragilifolia. 
Dumortiera irrigua, 
The number of Musci and Hepatice 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 Huropean limit in the Pyrenees 
(not being found in the British Isles) reappear in N. America, 
under nearly the same latitude: such are Hypnum Haldanianum, 
