POLYTRICHACE^;.] 48 [Polytrichum. 



Pol. minimum CROME in HOPP. Bot. Tasch. 1807, 108 : et Samml. n. 30. 

 Pol. laterale CROME op. c. in, et. Samml. ii, 89. 

 Pol. defluens BRID. Mant. muse. 200. 



Pog. aloides var. y. dcflucns, BRID. Bry. univ. ii, 121. C. MUELL. Syn. i, 203. SCHIMP. 

 Synops. Muse. Var. ft. minus Bry. eur. Bry. brit. BERK. Handb. 



HAS. On dry banks. Not common. 



Near Yarmouth (Dickson). Derry, Ireland (D. Brown). Hopton, Suffolk (Turner 1802). 

 Banks of Tay, Glebe of Kenmore (Herb. Hook) ! Strome Ferry (Hunt, 1866) ! ! 

 Madron, Penzance (Curnow). Compton and Moretonhampstead (Brent). 



This species should strictly bear the name of P. nanum, having been so 

 called and clearly defined by WEISS in 1770 in his excellent " PL cvypt. Fl. 

 gotting; " but seeing that later authors have transferred the name to the pre- 

 ceding species, it would lead to endless confusion to retain it. The plant is 

 taller and more branching than P. subrotundum, and like it presents several 

 different forms, the serration varying in extent, and size of teeth and some- 

 times being nearly obsolete on the back of the nerve ; in P. nibellum MENZ. it 

 is very distinct, and the stems also are taller and more branched. 

 Occasionally both stems and setae become greatly elongated, a state which 

 appears to be frequent in N. India and Japan. 



SECT. 2. POGONATUM P. BEAUV. 



Stems taller, simple or branched, leafy throughout ; leaves narrower, 

 lanceolate, acute. Capsule as in Sect. i. 



3. POLYTRICHUM URNIGERUM L. 



Dioicous ; glaucescent, branched above. Leaves from a short, 

 sheathing base, lanceolate, acute, sharply serrated. Capsule erect, 

 ovali-cylindric, narrowed in the middle, papillose ; lid convex, rostrate. 

 (T. VI, C.) 



SYN. Polytrichum ramosum,setis ex alls urnigeris DILL. Hist. muse. 427, t. 55, f. 5 (1741) et Herb. 

 Pol. urnigerum L. Sp. pi. ii, 1109, n. 3 (1753) ; et Fl. suec. 967. HUDS. Fl. angl. 400 

 (1762). OEDER Fl. Dan. t. 296. NECK. meth. muse. 129 (1771). WITHER. Bot. 

 arr. Br. veg. 663 (1776). LIGHTF. Fl. Scot, ii, 703 (1777). WEB. Fl. Gott. n. 119 

 (1778). ROTH Fl. germ. i. 457, et iii, 350 (1788). EHRH. Hann. mag. 235 (1780). 

 HOFFM. Deutsch. Fl. ii, 24 (1796). MENZ. Tr. Lin. soc. iv, 81 (1798). BRID. Muse. 

 rec. ii, P. I, 97 (1798) ; Sp. muse. I, 65 (1806) ; Mant. muse. 199 (1819). SWARTZ 

 muse. suec. 77 (1798). HULL Br. Fl. P. 2, 248 (1799). ROHL. Moosg. Deutsch. 210 

 (1800). HOPPE Bot. Tasch. 154 (1800). HEDW. Sp. muse. 100, t. 22, f. 5-7 (1801). 

 BM. Fl. Brit, iii, 1378 (1804); Eng. Bot. 1218. TURN. Muse. hib. 87 (1804). WEB. 

 MOHR Bot. Tasch. 216 (1807). WAHL. Fl. lapp. 347 (1812) ; Fl. carp. 349 (1814). 

 VOIT Muse. herb. 60 (1812). SCHWAEGR. Suppl. I, P. 2, 318 (1816). MART. Fl. cr. 

 erlang. 81 (1817). HOOK. TAYL. Muse. brit. 27, t. xi (1818). HARTM. Skand Fl. 286 

 (1820). FUNCK Moostasch. 70, t, 57 (1821). HooK.Fl. Scot. P. 2, 126 (1821) ; Brit. Fl. 

 11,50(1833). GRAY Nat. arr. Br. pi. i, 721 (1821). ZENK. DIETR. Muse. Thur. n.g 

 (1821). WALLR. Fl. crypt, germ, i, 197 (1831). HUEBEN. Muse. germ. 525 (1833). 

 BALS. DE NOT. Pr. Bry. mediol. 21 (1834). MACK. Fl. hib. P. 2, 28 (1836). DE NOT. 

 SYLL. muse. n. 210 (1838). FIOR. MAZ. Briol. rom. 2 ed. 30 (1841). RABENH. Deuts. 

 Krypt. Fl. n, P. 3, 236 (1848). C. MUELL. Syn. muse, i, 208 (1849). LINDB. in Not. 

 ur Sallsk. Fl. Fn. fenn. ix, 134 (1867). 



Bryum urnigerum NECK. Delic. gallo-belg. ii, 462 (1768). 



