HyPNACE/E.] 174 \Isopterygium. 



contracted below mouth when dry; lid shorter than capsule, yellow, 

 convex-conic, rostrate, annulus of two rows ; teeth pale yellow, processes 

 perforated, and with two slender cilia. 

 Hab. — On stones and tree-roots in woods on limestone, not rare. Fr. 12 — 2, rare. 



Mill Dingle, Beaumaris c fr. (Wilson 1828) ! ! Mowthorpe dale and OxcaiT wood at Castle 

 Howard station c fr. (Sprua 1847) ! ! Todmorden and Gordale (Nowdl). Arthog, Bar- 

 mouth c. fr. {Whitehead) ! ! Whitbarrow, Westmoreland c. fr. (/. M. Barnes 1871) ! ! 

 Dunton green, Kent (Holmes). Near Clifton c. fr. (Palgrave). 



4. ISOPTEEYGIXm ELEGANS {Hook.) Lindb. 



Dioicous ; in prostrate shining green patches. Leaves complanate or 

 oblique, ovato-lanceolate, acuminate with a few teeth at apex and two 

 short nerves or none. Capsule ovate, cemuous ; lid conic, shortly rostellate. 

 (T. CXVI, C.) 



Syn. — Hypnum elegans Hook. Musci exot. i, t. g (1818), et ii, App. 19 (1820). Schwaeg. Suppl. 

 Ill, P. II, t. 282 a (1830). Spruce in Ann. Mag. Nat. Hist. 2 sen iii, 276 (1849), et in 

 Trans. Hot. Soc Edinb. iii, 135 (1849). C Muell. Synops. ii, 260 (1851). Wils. Bry. 

 Brit. 408, t. 59 (1855). SuLLiv. Moss. Un. St. 80 (1856). Hartm. Skand. fl. 8 ed. 327 

 (1861). Berk. Handb. Br. Moss. 131 (1863). Hobk. Synops. 161 (1873). Lesq. James 

 Moss N. Amer. 366 (1884). Boiru Husc Fr. 89 (1884). 



Isofhedum elegans Brid. Bry. univ. ii, 356 (1827). 



Hypnum plauifolium Brid. op. c. p. 41 1. 



Leskea prostrata Taylor MSS. 



Hypnum Borrerianum Spruce MSS. (1846). C. Muelu Synops. ii, 279 (1851). 



Plagiothedum elegans Schimp. CoroU. 116, in obs. (1856), Synops. 2 ed. 697 (1876). 

 JuRATZ. Verb. z. — b. Verein. Wien, 1863, P. 501. Sulliv. Icones muse. Suppl. 86, t. 64 

 (1874). HusN. Muse. Gall. 350^ t. loi (1893). Lihpk- in Rabenh. D. kr. fl. Laubm. iii, 

 28s (1897). 



R/^mehosUgium elegans Lihdb, in Hedwigia 1863, p. 69, in Oefv. Vet. Akad. foerh. xx, 412 

 (1864), in Bot. Notis. 1865, p. 137 — 141, et in Notis. ur SaeUs. pro Fn. et Fl. fenn. foerh. 

 1867, p. 37. 



Plagiothedum Borrerianum Spruce in Joum. Bot. 1880, p. 29a Hobk. Synops. 2 ed. 2io 

 (1884). Dix. Jahes. Handb. Br. m. 432 (1896). 



Jsoptetygium elegans Limdb. in Notis. saells. Fn. et Fl. fenn. xiii, 416 (1874). 



Isopterygium Borreri Lindb. in Rev. biyol. 1882, p. 85. 



Dioicous ; growing in depressed shining patches, the stems prostrate 

 with ascending branches, bright or yellowish green. Plants increasing 

 by short caducous ramuli, which spring from axillar gemmae. Leaves 

 bifarious complanate, plane ovato-lanceolate, acuminate, sometimes slightly 

 falcate ; nerves very variable, obsolete or very short, or reaching ^ length 

 of leaf ; cells narrow, subflexuose, similar but shorter at angles. Perich. 

 bracts erect, sheathing, inner lanceolate, ending in a long serrulate 

 subula ; seta purple ; capsule suberect or cemuous, reddish-yellow, narrowly 

 elliptic, with a short neck ; lid conical-apiculate ; teeth of peristome rufescent, 

 papillose above ; inner processes not perforated, cilia 2 — 3. 



