HYPNACE*.] l8l \Plagiothedum. 



SVN. Muscus pennatus capitulis Adianti Bobart, RAY Synops. App. 236 (1690). 



Hypnum repensfi lid folium non ramosum, pediculis et capitulis longioribus ad radicem 



utrinue d "* 



, 



utrinque d " plicatis DILL - Cat - Giss - 



'' /> ""' M/ ' S du P licatis rtcurvis DILU Hist. muse. 266, t. 34, 



#, denticulatum L. Sp. pi. 1122 (1753). HUDS. Fl. Angl. 420 (1762). NECK Me'h 

 muse. 154 (1771). WITHER. Bot. arrang. ii, 680 (,776). LIGHTF. Fl. Scot. ii, 741(1777) 

 WEB. bpic. fl. Goett. 44 0778). HOFFM. Deutsch. fl. ii, 56 (1795). HEDW Descr iv 8 ' 

 */ & ( 17 Z 7) - R T n Tent fl - Germ ' iH ' R l ' 264 ( I8 > BRID. Muse. ree II P. ii 52 



- n - ' ' ' RID. use. ree I P. i 5 



(1801), Sp. muse. II, 91 (1812). Mant. 153 (1819), Bry. univ. ii, cci (1827) SMITH Ft 

 Brit. .288 (1804), Eng. Bot. t. 1260. TURN. MusV.W 146 (1804" P BEAUV. PrSr 63 

 (1805) SCHULTZ Fl. Starg. 313 (,806). WEB. MOHR Bot. Tasch. 346 (1807). ROEHL 

 Deutsch. fl. in, 99 1813). WAHLENB. Fl. Lapp. 371 (1812), Fl Carpal 7 (181!) 

 SCHWAEG. Suppl. I, P. H, ,87 (1816). HOOK. TAYL. Muse. Brit. 92 (1818) HOOK Fl 

 Scot. P. 2,41 (1821). FUNCK Moost. 56, t. 37 (1821). GRAY Nat. arrang. 753 (1821) 

 UE f o'^ USC - Germ ' ^ (I833) " DE NoT - S y llab " 7 (1838). RABENH. D. kr fl. II, s . 3,' 

 283 (1848). C. MUELL. Synops. ii, 251 (1851). WILS. Bry. Brit. 407 (i8). HOBK 

 Synops. 161 (1873). BOULAY Muse. Fr. 84 (1884). 



Plagiothedum denticulatum BR. SCH. Bry. Eur. fasc. 48, p. 12, t. 8 (1851). SCHIMP. Synops. 

 582 (1860), 2 ed. 696. BERK. Handb. 130 (1863). MILDE Bry. Siles. 320 (1869) DE 

 NOT. Epilogo (1869). LESQ. JAMES Moss N. Amer. 367 (1884). HUSN. Muse. Gall i 

 t. 101 (1893). Dix. JAMES. Stud. Handb. 435 (1896). LIMPR. in RABENH. D. kr fl! 

 Laubm. iii, 265 (1897). 



Fissidens denliculatus LEYSS. Fl. hal. 264 (1783). WILLD. Prod. Fl. Berol. no. 922 (1787). 

 Leskea denticulata TIMM Prod. Fl. megap. no. 803 (1788). 

 Pylaiscea radicans LA PYL. Journ. Bot. 1813, p. 24, t. 33, f. 2. 

 Leskea hamosa AONGST. in Bot. Not. 1866,' p. 102. 

 Plagiothedum Gravetii PJRE in Nouv. rech. bryol. fasc. 4 (1871). 



Autoicous ; in flat glossy deep green tufts. Stem prostrate, stoloni- 

 ferous, the branches erect, complanate. Leaves at base very small, 

 lanceolate, the median large ovate-oblong, pointed, decurrent, asymmetric, 

 the lower half inflexed ; nerve forked, very slender, ^ \ length of leaf ; 

 cells pointed, 12 14 times longer than wide, often with a serpentine 

 primordial utricle, quadrate and rectangular at angles. Inflorescence at 

 base. Ferich. bracts sheathing, acutely pointed, with a long nerve ; seta 

 red ; capsule cernuous or horizontal, cylindraceous, incurved, yellowish- 

 brown, often striate when old, the lid conic apiculate. Peristome teeth 

 yellow, papillose at point, inner paler, the processes lacunose in the keel, 

 cilia 2 3, often imperfect. 

 HAB. Damp woods and rotton trunks of trees ; common. Fr. 5 7. 



Var. y8. Aptychus Spruce. 



Leaves ovato-lanceolate, apiculate, decurved and subsecund ; nerves short, 

 margin scarcely reflexed below, cells very narrow ; capsule shorter oblongo-cylindric, 

 not striate ; neck not distinct, lid short and conical. 



Plagiothedum denticulatum subsp. Aptychus SPRUCE in Journ. Bot. 1880, p. 355. 

 Plagiothedum nitellum WILS. MSS. 



