Mr. R. Spruce on the Musci and Hepatica of the Pyrenees, 105 



lique unidentatis, truncato-bidentatis, denticulatis, retusis vel 

 obtusis omninoque integerrimis : involucralibus majoribus, sub- 

 verticalibus, arete adpressis, ovato-linguseformibus, repandis sub- 

 denticulatisve ; perianthio obovato-oblongo, compresso, incurvo, 

 ore spinuloso-dentato hinc plerumque fisso. 



Hab. Z!_ 2 ad rupes humidiusculas Pyren. centralium (Super- 

 bagneres ; Grottes de Bedat prope B.-de-Bigorre; V. de Gazos) 

 et occidentalium (Mont Goursi ; Gave de Valentin). 



Caules intertexti, fertiles ^"-1", steriles 2"-3" longi. Folia ramo- 

 rum fertilium plerumque integra retusave, sterilium contra vario modo 

 incisa rarius integra et integerrima. Retis areolae 6-angulares, sub- 

 contiguae. Color viridi-olivaceus sicco statu in lutescentem vergens. 

 Perianthium superne ampliatum. Capsulas maturas non habui. 



Florescentia monoica : perigonia spiciformia : folia lobulo involuto 

 spinuloso vel laciniato-dentato stamina obtegente praedita. 



Plagiochila interrupta, N. ab E. Syn. Hep. p. 48, planta plerum- 

 que humilior, folia semper integerrima et perianthium ore repando- 

 crenulatum habet. P. porelloides N. ab E., caulibus adscendentibus 

 etfoliis gibbisyflaccidis, integerrimis, sat superque distincta. 



Although I have lately had Dr. Gottsche's sanction for retaining 

 Plagiochila Pyrenaica, I think it not improbable that it may one day 

 be proved a variety of P. interrupta, a striking one certainly, and 

 perhaps confined to the Pyrenees. The Plagiochila; are so liable to 

 Variation in the toothing of the leaves, that it is scarcely possible to 

 suppose all the generally received species genuine. I have seen no 

 specimens of P. porelloides which I can safely separate from P. asple- 

 nioides, 



6. Scapania, Lindenberg. 



10. S. compacta, Roth, Fl. Germ. 3. p. 375 (sub Jung.) ; Syn. 

 Hep. p. 63. Jung, resupinata, Hook. Br. Jung. t. 23. 



" Var. 1, foliis in duplicatura ssepius alatis, ala repando-den- 

 tata, lobo ventrali convexo ;" H. P. 10. — Hab. Z in Agro Syr- 

 tico circa St. Sever et Aquas Tarbellicas. " Collines de St. 

 Pandelon, de Tercis-" Grateloup in ' Cryptogamie Tarbellienne/ 



" Var. 2, foliis ut plurimum insequaliter bilobis, lobo ventrali 

 concavo ;" H. P. 11. — Hab. Z x P. c. in arenosis supra pagum 

 Gerde prope B.-de-Bigorre. 



Possibly a distinct species from the foregoing. The segments of 

 the leaves are subtrapezoidal, quite entire, the sinus gibbous, the areo- 

 lation rather closer and subguttulate. I have, however, only the 

 sterile plant. 



11. S. undulata, L. Sp. PI. p. 1598 (sub Jung.); Hook. Br. 

 Jung. t. 22 j Syn. Hep. p. 65 ; H. P. 12. 



Hab. Z _3 in umbrosis humidis ad saxa. Pont d'Espagne. 

 Mt. Crabioules. V. de Courbettes (Philippe !). " In Agro Syr- 

 tico prope Dax" (Grateloup, /. c). 



