270 Mr. R. Spruce on the Musci and Hepatica of the Pyrenees. 



of verification is attached also to the locality : see, for an example, 

 the stations mentioned for Hypnum Starkii. 



Ordo MUSCI. 



Hemicyclum 1. Pleurocarpi. 



Tribus 1. Hypnace^. 



1. Hypnum, Dill., Linn. 



Obs. A large proportion of the species of this genus inhabit the 

 Zona montosa superior and the Zona subalpina, in some instances ex- 

 clusively. In Z3 they become much more rare, and above the line 

 where forests disappear, Hypna can barely be said to exist. Of the 

 rupestral species, the following were observed only on calcareous 

 rocks or soil : H. abietinum, recognitum, striatulum , murale, crassi- 

 nervium, Vaucheri, Teesdalii, tenellum, rvyosum, commutatum, poly- 

 morphum and depressum. Of the other species, several are occa- 

 sionally found on trees, but they all grow with equal facility on 

 rocks or on the ground. 



§ 1. Tamariscina. 



1. H. abietinum, L. Sp. PI. p. 1591; Hedw. Muse. Frond. 4. 

 t. 32; M. P. 1. 



Hah. Zi_2 in rupibus calcareis umbrosis, per Pyrenseos vulga- 

 tissimum, semper autem sterile. 



2. H. recognitum, Hedw. Muse. Frond. 4. p. 92. t. 35. 

 Hab. Zj in Pyr. orientalibus ; W. P. Schimper. 



3. H. tamariscinum, Dill. ; Hedw. Sp. Muse. t. 67. H. pro- 

 liferum, L. Sp. PI. p. 1590 ; M. P. 2. 



Hab. Zo_3 in sylvaticis, passim. 



§ 2. Umbrata. 



4. H. splendens, Hedw. Sp. Muse. p. 262. t. 67. 



Hab. Zo_3 loeis umbrosis humidiusculis : fertile nusquam vidi. 



5. H. umbratum, Ehrh. Crypt, Exsicc. n. QQ; Hedw. Sp. Muse, 

 t. 67 ; Sullivant ! Musci Allegh. n. 2 ; M. P. 3. 



Hab. Z2 in nemore obscuro juxta cataractam la Cascade du 

 Cceur dict.j in valle du Lys P. ceutr. ; neenon in valle Jeret P. occ. 



6. H. Pyrenaicum, Spruce in Muse. P. n. 4 : caule procum- 

 bente subdiviso, divisionibus irregulariter pinnatis, ramisque 

 stuppa radiculosa brevi, pallida, pinnato-divisa, obtectis ; foliis pa- 

 tentibus, ovatis (ramorum ovato-lanceolatis) apiculatis acuminu- 

 latisve, margine reflexis, argute et subdaplicato-serratis, nervo 

 tenui ultra medium evanescente (rarissime nervis binis) et plicis 

 tr-ibus striaformibus instructis. 



Hab. in summa zona sylvatica (Z,j) montis Crabioules, saxa cau- 



