BOTANY. 
CXCVll 
rius structura prcecedentis pariterque cum exteriori diu cohmrens, demum vero liberum et 
in omni statu separabile. Huic et praBcedenti valde affinis videtur Ptychostomum compactum 
Hornschuch, et Schwaegr. suppl. 2. sect. 1. p. 56. 1. 115., cui peristomium interius cum 
exteriore arctius cohaeret. Hujus generis ? alteram speciem arcticam habeo, Ptychostomum 
p)ulchellum^ capsula sphaerico-obovata, operculo hemisphaerico mutico, dentibus peristomii ex- 
terioris apice liberis basi mediante membrana (peristomio interiore) cohaerentibus, foliis ovato- 
lanceolatis acuminatis integerrimis. 
83. PoHT.iA PURPUE.ASCENS, foliis (purpurasceiitibus) ovato-lanceolatis acutissimis : mar- 
ginibus integerrimis recurvis, capsulis pyriformi-oblongls, operculo lieraispbaerico obtuso, flori- 
bus hermaphroditis. 
Obs. Prfficedentis forsan varietas, vix distinguenda nisi notis supra datis. 
Propter peristomii uaterni structuram banc cum duabus praecedentibus ad Pohliam retuli, 
facies tamen potius Bryi est, et omnes B. caespiticio quam maxime affines. 
84. Tkichostomum lanugixosum, Hedw. stirp. crypt. Q. p. 3. t. 2. Sp. muse. p. 16^. 
Schwaegr. suppl. 1. sect. 1. p. 149. Smith brit. 3, p. 1240. Engl. bot. 1348. Turner 
muse, hibern. p. 38. Muse. brit. p. 60. t. 19. Hooker scot. par. 2. p. 134. Wahlenb. 
lapp. p. 329. Richardson in Franklin's journ. p. 755. 
Racomitrium lanuginosum, Brid. mant. p. 79. 
Obs. Specimina pauca et absque fructificatione. 
85. Dxdymodon 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. Carpal, p. 336. Voit 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. salland. 2. p. 40. 
Cynodontium capiEaceum, 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, fasc. 1. p. 4. t. 1. /. 6. 
Bryum tenuifollum, 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. caplllaceo europaeo convenit, paululum differt cap- 
sulis ovalibus nec oblongis. 
|3. statura humiliore, foliis strictloribus et brevioribus; media quasi inter D. capEla- 
ceum vulgare et D. subulatum Schkuhr deut. moos. p. 65. t. 28., quod ad eandem spe- 
ciem pertinere videtur. 
