PoLYTRicHACE^.] 54 [Polytrichum. 



sharply serrate to base ; lamellae very low and close, about 60, each in 

 section of a row of 3 — 4 cells, equal in size and smooth. Perich. bracts 

 very long, erect, with long sheaths, lamellose only toward apex. Seta 

 long, reddish yellow. Calyptra covering all capsule, fulvous brown. 

 Capsule erect when moist, cernuous when dry, finally horizontal, 

 prismatic with 6 — rarely 5 or 4 — angles, and an obconic rather indistinct 

 hypophysis, pale yellow green, finally fawn-colored, leptodermous ; lid 

 from a broad base with a purple margin, conico-acuminate. Teeth 64, 

 pale yellow, short. Spores very small, dark yellow. Male plants 

 shorter and more slender, bracts cuspidate. 



Hab. — Dry woods in subalpine districts. Common in the north. Fr. 6 — 7. 



This species is at first sight often mistaken for P. commune, but is a 

 more delicate plant, easily distinguished by its soft, less quadrangular 

 capsule, without a distinct perichsetium. 



P. pallidisetum is only a form with shorter stems, straighter leaves, and 

 narrower and longer capsule. 



8. POLYTRICHUM PILIFERUM Schreh. 



Dioicous; laxly csespitose. Stems short, simple, naked below, 

 densely comoso-leafy above ; leaves elongato-lanceolate, wings inflexed, 

 entire, nerve prolonged into a rough hoary hair-point. Capsule tetra- 

 gonous ; lid depresso-conic, rostellate. (T. VIII, A.) 



Syn. — Muscus trichoides minor foUis oblongis, &c. Ray Synops. 2 ed. 29, u. 5 (1696). 



Polytrichum qtmdrangulare minus , juni/>eri foliis pilosis Dill. Hist. muse. 426, t. 54, fig. 3 

 (1741) et Herb. 



Pol. commune var. y. L. Sp. PI. ii, 1109 {1753). HuDS. Fl. angl. 400 (1762). Wither. 

 Arr. Br. Veg. ii, 662 (1776). Var. y. pilosum Weiss PI. cr. fl. gott. 172 (1770). 



Pol. piliferum Schreb. Spic. fl. lips. 74 (1771). Brid. Muse. ree. ii, P. I, 85 (1792) ; Sp. 

 muse. I, 52 (1806) ; Mant. muse. ig6 (1819) ; Bry. univ. ii, 142 (1827). Sibth. Fl. Oxon. 

 306 {1794)- HoFFM. Deuts. Fl. ii, 21 (1796). Roth Fl. Germ, i, 457 et iii, 348. Menz. 

 Trans. Linn. Soc. iv, 75 (1798). Swartz Muse. suec. 76 (1798). Hull Br. Fl. P. 2, 

 247 (1799). ROhl. Moosg. Deuts. 181 (1800) ; Deutseh. Fl. iii, 58 (1813) ; Ann. Wett. 

 ges. iii, 217 (1814). HopPE Bot. Tasch. 148 (1800). Hedw. Sp. muse, go (1801). 

 Smith Fl. Brit, iii, 1374 (1804) ; Eng. Bot. 1x99. Turn. Muse. Hib. 82 (1804). 

 P. Beauv. Prodr. 86 {1805). I.AM. DeC. Fl. frane. 3 ed. ii, 488 (1805). Schultz Fl. 

 Starg. 287 (1806). Web. Mohr Bot. Taseh. 118 {1807). VoiT Muse. herb. 59 (1812). 

 Wahlen. Fl. Lapp. 243 {1812) ; Fl. carp. 347 {1814). Schwaegr. Suppl. I, P. 2, 313 

 (1816). Mart. Fl. er. Erlang. 82 {1817). Hook. Tayl. Muse. Brit. 24, t. x (1818). 

 Hook. Fl. Seot. P. 2, 125 (1821) ; Brit. Fl. ii, 48 (1833). Funck Moostaseh. 68, t. 54 

 (1821). Wallr. Fl. crypt, germ. i. 199 (1831). Hueben. Muse. germ. 524 (1833). 

 Bals. De Not. Pr. Bry. mediol. 18 (1834). Mackay Fl. Hib. P. 2, 27 (1836). Br. 

 Schimp. Bry. Eur. iv, Mon. 11, t. xiv (1844) ; Syn. Muse. 446 (i860), et 2 ed. 542 (1876). 

 C. MuELL. Syn. Muse, i, 217 (1849). Wils. Bry. Brit. 213, t. x (1855). Berk. Handb. 

 Br. m. 208 (1863). LiND. Not ur Sails. Fn. et Fl. fenn. ix, 124 (1867). Milde Bry. 

 Siles. 252 (1869). De Not. Epil. Briol. Ital. 335 (i86g). HusN. Mouss. nord-ouest 137 

 (1873). Hoek. Syn. br. m. 104 (1873). 



Pol. pilosum Neck. Meth. muse. 123 {1771). Schrank Baiers. Fl. ii, 446 (1789). 



Pol. commune p. pilosum Ehrh. Hann. Mag. 235 (1780). 



Pol. pilifolium Gray Nat. arr. Br. pi. i, 720 (1821). 



