PoLYTRicHACE^.] 47 [Polytrtchum. 



Pol. mnioidcs Neck. Meth. muse. 123 (1771). 



Pol. aloefolium i et 2 Scop. F1. earn. 2 ed. ii, 309 (1772). 



Pot. aloides Hedw. St. crypt, i, 37, t. xiv (1787) ; Sp. Muse. g6 (1801). Willd. F1. berol. 



n. 914 (1787). Roth FI. germ, i, 458, et iii, 332 (1788). Timm F1. meg. n. 772 (178S). 



SiBTH. Fl. Oxon. 307 (1794). With. Bot. arr. Br. Veg. 3 ed., iii, 796 (1796). Hoffm. 



Deut. Fl. ii, 24 (1796). Swartz muse. suee. 78 (1798). Menz. in Tr. Lin. soc. iv, 70 



(1798). Brid. muse. rec. ii, P. I, 72 (1798) ; Sp. muse, i, 72 (1806) ; Mant. muse. 200 



(i8ig). Hull Br. FI. P. 2, 247 (1799). Hoppe Bot. Taseh. 155 (1800). Rohl. Moosg. 



Deutsch. 192 (1800). Sm. Fl. Brit, iii, 1380 (1804) ; Eng. Bot. t. 1649. Turn. Muse. 



hib. 88 (1804). Schultz Fl. Starg. 287 (i8o5). Web. Mohr Bot. Taseh. 226 (1807). 



Voit muse. herb. 60 (1812). Wahlen. Fl. earp. 349 (1814). Schwaegr. Suppl. I, P. 2, 



322 (1816). Hook. Tayl. muse. brit. 28, t. xi (1818). Hook. Fl. scot. P. 2, 126 (1821) ; 



Brit. Fl. ii, 50 (1833). Gray Nat. arr. Br. Veg. i, 721 (1821). Zenk. Dietr. muse. 



Thuring. n. 32 (1822). Wallr. Fl. crypt, germ, i, 197 (1831). Hueben. muse. germ. 



522 (1833). Bals. De Not. Pr. Bry. Mediol. 22 (1833). Mack. Fl. hib. P. 2, 28 (1836). 



De Not. Syll. muse. n. 211 (1838). Fior. Maz. Bry. rom. 2 ed. 30 (1841). Rabenh. 



Deutsch. Krypt. Fl. ii, P. 3, 235 (1848). C. Muell. Syn. muse, i, 202 (1849). 

 Pol. rubellum Menz. in Tr. Lin. Soc. iv, 79, t. vii, f. 3 (1798). Hull Br. Fl. P. 2, 248 



(1799). Smith Fl. Brit, iii, 1381 (1804) ; Eng. Bot. t. 1939. Brid. Sp. muse. I, 73 



(1806), et Mant. muse. 201 (1819). 



Pogonatum aloides P. Beauv. Prodr. 84 (1805). Rohl. Deuts. Fl. iii, 60 (1813) ; Ann. 

 Wett. Ges. iii, 229 (1814). Brid. Bry. univ. ii, 119 (1827). Br. Schimp. Bry. Eur. iv, 

 Mon. 6, t. 8 (1844) ; Syn. muse. 439 (i860), et 2 ed. 535 (1876). Wils. Bry. Brit. 206, 

 t. xi (1855). Berk. Handb. Br. m. 210, t. ig, f. 2 (1863). Milde Bry. Siles. 248 (i86g). 

 De Not. Epil. Briol. Ital. 339 (1869). Hobk. Syn. Br. M. 102 (1873). HusN. Mous. 

 du Nord-ouest 135 (1873). 



Dioicous ; gregarious or clustered. Stem from a creeping base, 

 erect, simple, naked below, sometimes bifid and elongated. Leaves 

 crowded, patulous, dull green, lowest scale-lilce, ovate, the rest gradually 

 longer as they ascend, from a sheathing, submembranous base, elongato- 

 lanceolate, rather acute, distinctly serrate above and on the back of the 

 nerve, contracted and appressed when dry ; lamellse about 48, low, 

 straight, each in section of one row of 3 — 5 small, equal, rounded cells. 

 Seta purple. Capsule somewhat contracted at base, oblong-urceolate, 

 erect or inclined, olivaceous, with a red mouth, finally brown, granulose 

 toward base ; lid conic, rostellate ; columella 4-winged ; teeth 33, linear, 

 pale ; spores pale green. Calyptra longer than capsule, whitish, tinged 

 with ferruginous below. 



Male infl. discoid, inner bracts obovate, pointed, with some lamellae 

 at apex. 



Hab. — Heaths, hollow banks and by the side of paths in woods. Common. 

 Fr. II — 2. 



Var. p. Dicksoni {Turn.) Wallm. 



Dwarf, stem simple or branched ; seta very short, capsule subobovate, 

 lid conical, calyptra sometimes confluent below the capsule, sometimes per- 

 forated at apex. 



Syn. — Polyt. nanuni Hoffm. Deutsch. Fl. ii, 24. in obs. (1795). 



Pol. Dicksoni Turn. Muse. Hib. 90, t. x, f. 2. Eng. Bot. t. 1605 (1804). Brid. Sp. muse. 

 71 et Mant, muse. 201. 



Pol. aloides nanum Web. M. Bot. Taseh. 227, in obs. var. (3. Dicksoni Wallm. in Liljeel. 

 Svensk Fl. 3 ed. 528 (1816). Hook. Tay. Muse. Br. 28. 



