Mr. R. Spruce on the Musci and Hepaiicce 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 hiiic plerumque fisso. 



Hah. Zi_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 J"-l", 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 involute 

 spinuloso vel laciniato-dentato stamina obtegente preedita. 



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 gibbis, flaccidis, 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. Scaj)ania, 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. Zq in Agro Syr- 

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

 Pandelon, de Tercis -/' Grateloup in ^Cryptogamie Tarbellienne.' 



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

 concavo ;" H. P. 11. — Hab. Zj 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 ; Syn. Hep. p. 65 ; H. P. 12. 



Hab. Zo_3 in umbrosis humidis ad saxa. Pont d^Espagne. 

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

 tico prope Dax^' (Grateloup, /. c.). 



