Mypnace^.] 154 [Sematophyllum. 



I. SEMATOPHYLLXnffl DEMISSUM {Wils.) Mitt. 



Autoicous ; in creeping glossy yello\vish-green tufts. Leaves 

 crowded, erecto-patent and subsecund, broadly lanceolate, acute, entire, 

 nerveless. Capsule cernuous, narrow ovate, lid with a long acute beak. 

 (T. CXIII, A.) 



Syk. — Hypnum demissum Wils. Eng. Bot. Suppl. t. 2740 (1832), in Hook. Br. fl. ii, p. ix 

 (1833), Bry. Brit. 401, t. 59 (1855). Tayl. in Mack. Fl. Hib. 39 (1836). De Not. 

 Syllab. 57 (1838). C. Mueli,. Synops. ii, 327 (1851). Berk. Handb. 95, t. 11 (1863). 

 HoBK. Synops. 157 (1873). Boulay Muse. Fr. loo (1884). 



Hypnum flavescens Wils. MSS. et in Hook. Br. fl. ii, 79 {1833). 



Hypnum Schimperi Bruch MSS. Rabenh. D. kr. fl; H, S. 3, 286 (1848). 



Rhynchostegium (§ Raphidostegium) demissum Br. Sch. Bry. Eur. fasc. 49 — 51, p. 4, t. I 

 (1852). Lesq. James Moss. N. Amer. 355 (1884). 



Rhynchostegium (§ Raphidorrhyncha) demissum Schimp. Synops. 564 (i860), 2 ed. 678. 



Sematophyllum demissum Mitt. Journ. Linn. Soc. viii, 5 (1864). 



Raphidostegium demissum De Not. Cronaca H, 31 (1867), Epilogo 182 (1869). Limpr. in 

 Rabenh. D. ki. fl. Laubm. iii, 235 (1897). 



Eurhynchium demissum Milde Bry. Siles. 308 (i86g). Husnot Muse. gall. 343, t. 99 

 (1893). 



Plagiothecium demissum Dix. James. Stud. Handb. 439 (1896). 



Autoicous ; in creeping glossy yellow-green or rufescent patches ; 



stem prostrate, radiculose, with short decurved terete branches. Leaves 



crowded, erecto-patent or loosely imbricated or subsecund, broadly 



lanceolate, acute, concave, entire at margin, nerves obsolete ; cells 



narrow, slightly flexuose, basal orange, narrow at the angles 3 or 4 



inflated, rectangular, orange or hyaline. Perich. bracts erect, elongate, 



lanceolate, acute ; seta purple smooth ; capsule horizontal, regular, 



yellowish-brown, longish ovate, strongly contracted below the mouth 



when dry, lid large, conic with a long acute beak, peristome deep yellow, 



cilia short or imperfect. Perigonial bracts yellow, oval. 



Hab. — Wet rocks, rare. Fr. 7 — 8. 



Cromaglown and O'SuUivan's caseade, Killarney (Wilson 1829)!! Kenmare and 

 Glengarriff'. Beddgelert, N. Wales (Wilson). Near Keswiek, Cumberland (Carrington & 

 Pearson 1884). 



2. SEMATOPHYLHTM MICANS {Wils.) 



Dioicous ; in glossy yellow-green patches. Stem prostrate, very 

 slender, with short simple branches. Leaves patent, roundish-ovate, 

 apiculate, serrulate, obscurely two-nerved at base. Capsule ovate, lid 

 conical, the beak deflexed or curved upward. (T. CXIII, B.) 



