BOTANY. 
cxcvii 
rius structura prcecedentis pariterque cum exteriori diu cohaerens, demum vero liberum et 
in omni statu separabile. Huic et precedent! valde affinis videtur Ptychostomum compactum 
Hornschuch, et Schwaegr. suppl. 2. sect. 1. p.56. t. 115., cui peristomium interius cum 
exteriore arctius cohasret. Hujus generis ? alteram speciem arcticam babeo, Ptychostomum 
2 'julchellum, capsula sphaerico-obovata, operculo hemisphaerico mutico, dentibus peristomii ex- 
terioris apice liberis basi mediante membrana (peristomio interiore) cohaerentibus, foliis ovato- 
lanceolatis acuminatis integerrimis. 
83. Pohlia purpuras ce ns, foliis (purpurascentibus) ovato-lanceolatis acutissimis : mar- 
ginibus integerrimis recurvis, capsulis pyriformi-oblongis, operculo hemisphaerico obtuso, flori- 
bus hermaphroditis. 
Obs. Praecedentis forsan varietas, vix distinguenda nisi notis supra datis. 
Propter peristomii interni structuram hanc cum duabus praecedentibus ad Pohliam retuli, 
facies tamen potius Bryi est, et omnes B. csespiticio quam maxime affines. 
84. Trichostomum lanugixosum, Hedw. stirp. crypt. 3. p. 3. t. 2. Sp. muse. p. 109- 
Schwaegr. suppl. 1. sect. 1. p. 149. Smith brit. 3. p. 1240. Engl. hot. 1348. Turner 
muse, hibern. p. 38. Muse. brit. p. 60. i. 19. Hooker scot. par. 2. p. 134. Wahlenb . 
lapp. p. 329. Richardson in Franklin's journ. p. 7 55. 
Bacomitrium lanuginosum, Brid. mant. p. 79. 
* Obs. Specimina pauca et absque fructificatione. 
85. Didymodon capillaceum, Schrad. spicil. p. 64. Sw. in act. holm. 1795, p. 237. 
Muse. suec. p. 28. Roth. germ. 3. p. 199. Web. et Mohr, tasch. p. 155. Schkuhr deut. 
moos. p. 66. t. 29. Wahlenb. lapp. p. 314. Carpat. p. 336. V oit muse, herbip. p. 34. 
Muse. brit. p. 67. t. 20. Brid. mant. p. 100. Hooker, scot. par. 2. p. 136. Richardson 
in Franklin's journ. p. 755. 
Swartzia capillacea, Hedw. stirp. crypt. 2. p. 72. t. 26. 
Cynontodium capillaceum, Hedw. sp. muse. p. 57. Schumach. scclland. 2. p. 40. 
Cynodontium capillaceum, Schwaegr. suppl. 1. sect. 1. p. 114. 
Trichostomum capillaceum, Smith brit. 3. p. 1236. Engl. bot. 1152. Turner muse, 
hibern. p. 35. 
Bryum capillaceum, Dicks, crypt, fuse. 1. p. 4. t. 1. /. 6. 
Bryum tenuifolium, Villars dauph. 4. p. 868. 
Bryum n. 1806. Hall. hist. 3. p. 44. t. 45. p. 1. 
Obs. Duas varietates a Melville Island habeo, quarum 
a. statura et foliis laxiusculis cum D. capillaceo europaeo convenit, paululum differt cap- 
sulis ovalibus nec oblongis. 
/2. statura humiliore, foliis strictioribus et brevioribus; media quasi inter D. capilla- 
ceum vulgare et D. subulatum Schkuhr deut. moos. p. 65. t. 28., quod ad eandem spe- 
ciem pertinere videtur. 
