POLYTRICHACE.E.] 53 [Polytrichum. 



of 4 6 cells, all equal and smooth. Perich. bracts sheathing up to 

 middle, narrowly subulate. Capsule on a long orange seta, erect, 

 when dry horizontal, not quite covered by the orange calyptra, ovate 

 with 6 obscure angles, narrowed at mouth, yellow, leptodermous, with 

 an obconic not very distinct hypophysis ; lid large, red bordered, with 

 a long slightly obliquate beak. Teeth 32, united in pairs, or 64, unequal, 

 varying in length. Spores rather large, pale ferruginous. Male plants 

 with shorter leaves ; bracts obovate, acuminate. 



HAB. Dry heaths on turfy soil, sides of peat cuttings and sometimes in 

 clefts of rocks. Not uncommon. Fr. 7. 



Ben Nevis (Dickson). Oakmere and Knutsford moor (Wilson) ! Halemoss, Cheshire 

 (Hunt) ! ! Ingleboro (Hooker). Todmorden (Nowell). Chyandour moor, Penzance 

 (Curnow). Trowlsworthy bog (Brent). 



Resembles P. attenuatum but is smaller and more slender, the leaves 

 shorter, with cells twice the size, and with broad pellucid margins, and 

 differing also by the obtuse-angled capsule and beaked lid. The latter 

 characters will also distinguish it from P. commune var. minus. 



7. POLYTRICHUM ATTENUATUM Menz. 



Dioicous ; tall, csespitose. Leaves from a glossy sheathing base, 

 arcuato-patulous, lineal-lanceolate, plane ; margin sharply serrate. 

 Capsule prismatic, with 6 (sometimes 4 or 5) angles, pale, leptodermous ; 

 lid from a broad base, conico-acuminate. (T. VII, C.) 



SYN. Polytrichum attenuatum MENZ. in Trans. Lin. Soc. iv, 72, t. 6, fig. 2 (1798). SMITH 



Eng. Bot. t. 1198 (1803), et Fl. brit. Hi, 1373 (1804). TURN. Muse. hib. 83 (1804). 



LINDB. in Not. ur. Sails. Fn. et Fl. fenn. forh. ix, 126 (1867). 

 Pol.formosum HEDW. Sp. muse. 92, t. 19, fig. i et a. (1801). P. BEAUV. Prodr. 85 (1805). 



BRID. Sp. muse. I, 55 (1806) ; Mant. muse. 197 (1819) ; Bry. univ. ii, 151 (1827). WEB. 



MOHR Bot. Tasch. 221 (1807). WAHLENB. Fl. lapp. 345 (1812) ; Fl. carp. 348 (1814). 



ROEHL. Deuts. Fl. iii, 58, et. in Ann. Wett. Ges. iii, 219 (1814). SCHWAEGR. Suppl. I, 



P. II, 315 (1816). MART. Fl. crypt. Erl. 83 (1817). SCHULTZ Suppl. Fl. Starg. 87 (1819). 



FUNCK Moostasch. 69, t. 55 (1821). WALLR. Fl. crypt, germ, i, 200 (1831). HUEBEN. 



Muse. germ. 536 (1833). BALS. DE NOT. Pr. Bry. med. 20 (1834). DE NOT. Syll. 



muse. n. 207 (1838). FIOR. MAZ. Briol. rom. 2 ed. 29 (1841). Br. SCHIMP. Bry. Eur. 



iv, Mon. 9, t. xii (1844) ; Syn. Muse. 445 (1860), et 2 ed. 541 (1876). C. MUELL. Syn. 



muse, i, 224 (1849). WILS. Bry. Brit. 210, t. 46 (1855). BERK. Handb. Br. m. 208 



(1863). MILDE Bry. Siles. 250 (1869). DE NOT. Epil. Briol. Ital. 331 (1869). HOBK. 



Syn. br. m. 103 (1873). HUSN. mouss. nord-ouest 136 (1873). 

 Pol. pallidisetum FUNCK in HOPP. Bot. Tasch. 1802, p. 44 ; Moostasch. 69, t. 55. BRID. 



Sp. muse. I, 58; Mant. muse. 197. 

 Pol. commune var. ft. attenuatum HOOK. TAYL. Muse. brit. 26, p.p. (1818) ; Brit. Fl. ii, 49 



( J 833). Var. ft. aurantiacum WAHLENB. Fl. suec. ii, p. 737, p.p. (1826). 

 Pol. aurantiacum var. ft- WAHLENB. Fl. upsal. 387 (1820). 

 Pol.formosum a. quadrangularc HARTM. Skand. Fl. 404 (1820). 



Dioicous; tall, laxly csespitose, bright green. Stem 3 6 in. high, 

 simple, erect or ascending from a decumbent tomentose base. Lower 

 leaves minute, membranous with a patent cuspidate point ; upper from 

 a glossy, longly sheathing whitish base, arcuato-patulous, when dry 

 laxly incumbent, longly lineal-lanceolate, plane, opake, margin erect, 



