Mr. R. Spruce on the Musci and Hepaticce of the Pyrenees. 107 



The fructification in my specimens diflfers somewhat from the de- 

 scription in * Synopsis Hepaticarum ' ; it is as follows : — Involucral 

 leaves with very acute segments, otherwise not differing from the 

 cauline ones, with the exception of the innermost, which is rather 

 shorter and terminated by several unequal apiculate teeth : it is ac- 

 companied by a lanceolate very acute stipule. Perianth oblongo- 

 cylindrical, compressed, with four obtuse angles or plicae, the mouth 

 ciliate. 



§ 2. iNTEGRiFOLiiE^ Syn. Hep. 



18. /. Schraderi, Mart. Fl. Erlang. Cr. p. 180. t. 6. f. 55 ; 

 Syn. Hep. p. 83; Sullivant ! Musci Allegh. n. 235 ; H. P. 18. 



Hab. Z^ P. c. ad saxa in umbrosissimis secus cataractam Cas- 

 cade du Coeur dictam. 



19. J. hyalina, Lyell in Hook. Br. Jung. t. 63 ; Syn. Hep. 

 p. 92; H. P. 21. 



Hab. Zi_2 P. c. in rupibus secus rivulos, rarius ad terram. 

 Vallee de Castelloubon ; Gorge de Labassere, &c. 



20. /. nana, N. ab E. ; Syn. Hep. ! p. 91 ; H. P. 20. 



Hah. Zi_3 per Pyrenseos occ. et centr. in viis cavis, sed nus- 

 quam copiosa. Col de Louvie ; Bois de Lagaillaste ; Esquierry, 

 &c. 



21. /. Genthiana, Hueben. Hep. Germ. p. 107; Syn. Hep. 

 p. 94. " /. crenulata, Sm., var. foliis caulium fertilium minus 

 compresso-contiguisj vix marginatis, perianthio [haud compressd) 

 obovato, suhmncvomio, pUcato-4i-angulo, angulis papilloso-alatis'f" 

 H. P. 19. 



Hab. Zi_2 P. c. ad viarum parietes. Bois de Gerde prope 

 BagnereSy pulcherrime ! Port de Portillon, &c. 



The characters quoted above from ' Hepaticse Pyrenaicae ' correctly 

 indicate the differences of this plant from Jg. crenulata, and I am 

 now quite satisfied of their being specific. 



22. /. crenulata, Sm. ! E. Bot. t. 1463 ; Syn. Hep. p. 90. 

 Hab. Zo— 1 in arenosis turfosisque Agri Syrtici et P. centr., 



rarior. St. Sever-, B. -de-Big orre. 



23. /. sphcerocarpa, Hook. Br. Jung. t. 74 ; Syn. Hep. p. 93 ; 

 H. P. 22. 



Hab. Zi_2 P. occ. et c. locis similibas ac Jg. hyalina (n. 19). 

 Gorge de Cauterets; Labassere ; Foret de Transoubdt (Philippe !). 



The black crumbling schist at Labassere, on which Jg. sphcero- 

 carpa and hyalina occur intermixed, is precisely of the same nature 

 as the alum-shale in Eskdale near Whitby, Yorkshire, and it is re- 

 markable that there also the same two species grow together in con- 

 siderable quantity. 



