Mr. R. Spruce on the Musct and Hepatice of the Pyrenees. 105 
lique unidentatis, truncato-bidentatis, denticulatis, retusis vel 
obtusis omninoque integerrimis: involucralibus majoribus, sub- 
verticalibus, arcte adpressis, ovato-linguzeformibus, repandis sub- 
denticulatisve ; perianthio obovato-oblongo, compresso, incurvo, 
ore spinuloso-dentato hinc plerumque fisso. 
Hab. Z,_. ad rupes humidiusculas Pyren. centralium (Super- 
bagnéres ; Grottes de Bédat 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 areole 6-angulares, sub- 
contigue. Color viridi-olivaceus sicco statu in lutescentem vergens. 
Perianthium superne ampliatum. Capsulas maturas non habui. 
Florescentia monoica: perigonia spiciformia: folia lobulo involuto 
spiuloso vel laciniato-dentato stamina obtegente preedita. 
Plagiochila interrupta, N. ab E. Syn. Hep. p. 48, planta plerum- 
que humilicr, folia semper integerrima et perianthium ore repando- 
crenulatum habet. P. porelloides N. ab E., caulibus adscendentibus 
et foliis gibbis, flaccidis, integerrimis, sat superque distincta. 
Although I have lately had Dr. Gottsche’s sanction for retaining 
Plagiochila Pyrenaica, | 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 Plagiochile 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 seepius 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 inzequaliter bilobis, lobo ventrali 
concavo ;” H. P. 11.—Hab. Z, P. ¢. 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. Pl. p. 1598 (sub Jung.); Hook. Br. 
Jung. t. 22; 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.). 
