158 [Plagiobryum, 



SYN Bryum Zierii DICKS. Cr. Fasc. I, t. 4, f. 10 (1785). WITHER. Bot. arr. br. veg. 3 ed. iii, 

 830 (1796). HULL Br. fl. P. 2, 256 (1799)- HEDW. Sp. muse. t. 44, f. 14 (1801). TURN. 

 Muse. hib. 123 (1804). SM. Fl. brit. 1356 (1804), Eng. bot. t. 1021. BRID. Muse. rec. 

 II, P. Ill, 21 (1803), Sp. muse. Ill, 9 (1817), Mant. 117 (1819), Bry. umv. i, 641 (1826). 

 WAHLENB Fl. lapp. 361 (1812). ROEHL. Deutsch, fl. iii, 90 (1813). SCHWAEG. Suppl. 

 I P II 89 (1816). HOOK TAYL. Muse. br. 120, t. 29 (1818). FUNCK Moost. 46, t. 29 

 (1821). HOOK. Fl. Scot. P. II, 150 (1821), Br. fl. ii, 60 (1833). GRAY Nat. arr. br. pi. i, 

 769 (1821). MACK. Fl. hibern. P. 2, 30 (1836). BR. SCH. Bry. eur. fasc. 69, Mon. 30, 

 t. 9 (1839). RABENH. Deutsch. kr. fl. ii, S. 3, 206 (1848). HARTM. Skand. fl, 

 C. MUELL. Synops. i, 288 (1849). WILS. Bry. br. 247, t. 29 (1855). HOBK. Syn. 120 

 (1873). JURATZ. Laubm. oester.-ung. 297 (1882). BOUL. Muse, de Fr. i, 290 (1884). 



Mnium Zierii P. BEAUV. Prodr. 77 (1805). 



Hypnum Zierii WEB. MOHR Bot. Tasch. 275 (1807). 



Pohlia Zierii SCHWAEG. Sp. muse, i, 76 (1830). HUEBEN. Muse. germ. 465 (1833). DE 

 NOT. Syllab. 112 (1838). 



Zieria julacea SCHIMP. Coroll. 68 (1856), Synops. 384 (1860), 2 ed. 473. BERK. Handb. 

 br. m. 187, t. 18 (1863). MILDE Bry. siles. 222 (1869). DE NOT. Epilogo 432 (1869). 

 HOBK. Syn. 2 ed. 156 (1884). LESQ. JAMES Moss. N. Amer. 240 (1884). 



Plagiobryum Zierii LINDB. I.e. (1862). HUSN. Muse. gall, i, 224, t. 60 (1888). LIMPR. in 

 RABENH. D. kr. fl. Laubm. ii, 226 (1892). 



Cladodium Zierii HAMPE Fl. hercyn. (1873). 



Dioicous ; in lax soft tufts, pale silvery green above, pale claret at 

 base, stems short, with fragile julaceous branches. Lower leaves 

 distant, mixed with radicles, upper densely imbricated, oblong-lane., 

 broadly ovate-acuminate, cochleariform-concave, plane at margin, with 

 the points recurved, nerve vanishing, cells very lax and soft, hyaline ; 

 perich. bracts larger lane., acuminate. Caps, on a reddish seta arcuate 

 at top, horizontal or inclined, the neck twice the length of sporangium, 

 reddish-brown, clavato-pyriform, gibbous, lid conic acute; annulus 

 separating spirally, teeth orange at base, pale and subulate at apex, 

 rather shorter than the processes and incurved between them when dry, 

 cilia rudimentary. Male infl. gemmaceous. 



HAB. Crevices of mountain rocks. Not common. Fr. 10 n. 



Ben Lawers and Craig Chailleach, Glen Lochay, Glen Dole, Cader Idris (Wilson 1840) ! ! 

 Teesdale (Spruce) ! ! Arncliff, Yorks. (Whitehead 1868). Largs, Ayr (Boyd 1886) ! ! 

 Farragon and Gargunnock hill, Stirling (Stirling 1889) ! ! 



2. PLAGIOBRYUM DEMISSUM (Hornsch.) Lindb. 



Dioicous ; in short dense tufts. Leaves ovate, cuspidate with the 

 excurrent nerve. Caps, cernuous, incurved, unsymmetric, subgibboso- 

 pyriform, pale brown, teeth short, processes connate at apex, cilia 

 abortive. (T. LXIX, B.) 



SYN. Meesia demissa HORNSCH. Flora 1819, p. 106. BRID. Bry. univ. ii, 64 (1827). FUNCK 



Moost. t. 28, f. 4 (1821). SCHWAEG. Suppl. Ill, P. I, t. 233 (1827). 



Bryum demissum HOOK. Muse. exot. ii, t. 99 (1820), Muse. br. 2 ed. 206, Suppl. t. 6 (1827), 

 Br. fl. ii, 62 (1833). GREV. Scott. Cr. fl. ii, t. 92 (1825). BR. SCH. Bry. eur. fasc. 

 6-9, Mon. 30, t. 9 (1839). RABENH. Deutsch, kr. fl. ii, S. 3, 207 (1848). C. MUELL. 



