HvpNACEiE.] 162 [Siereodon. 



Hab. — On slaty rocks. Killarney and Conner Hill, Ireland {Wilson). 



Var. rf filiformis (Huds.) 



Tufts adpressed and dependent ; stem very long and slender, with long 

 filiform branches hanging down parallel to each other. Leaves flat, curved 

 falcately downward or diverging on all sides, usually serrated ; branch-leaves 

 longish-lanceolate. Capsule small, lid with a longish beak. 



Syn. — Hypniim repens trichodes terrestre, priori viridius et minus, capitulis ccrmiis minus tumidis 

 Dill. Cat. Giss. 216 (1718). 

 Hypnum sericeum ramosus et tenuis, cafsnlis acuminatis Dill. Hist. muse. 327, t. 42, f. 62, 



et Herbar. 

 Hypnum filiforme Hu0S. Fl. Angl. 2 ed. 497 (177S). 



Hab. — Trunks of trees and rocks, fruit very rare. 



Beddgelert (Wilson 1833) ! ! Ben Lomond (Braithwaite 1896) ! ! Eagle's nest, Killarney 

 {Braithwaite igoo) ! ! 



This most polymorphous species is a great trouble to the young collector, 

 and I used to think the opaque quadrate angular cells sufficient to settle it, but 

 in some forms or in old plants these become pellucid. Again the varieties differ 

 remarkably in size and habit, the leaves however are pretty uniform in structure 

 and afford the best means of identification. 



5. STEREODON RESUPINATTJS (Wih.) 



Dioicous ; in flat olivaceous-green tufts. Stem creeping, leaves 

 secund, turned japward, ovato-lanceolate, s}'mmetric, acuminate, scarcely 

 falcate, nerveless, entire. Capsule erect, nearly S3'mmetric, lid rostrate. 

 (T. CXIV, A.) 



Syn. — Hypnum multijlorum (non Schwaeg.). Tayl. in Mack. Fl. Hib. P. i:, 46 (1836). 



Hypnum cupres'iforme Var. resupinatum Schimp. Coroll. 133 (1856), et Synops. Husnot, 

 Dixon. 



Hyfnum polyanthos (non Schreb.) Sm. Eng. Bot. t. 1664, Fl. Brit. 1278 (1804.) Turn. 

 Muse. Hib. 137 (1804). 



Hypnum resupinatum WiLS. Bry. Brit. 398 (1855). Hoek. Synops. 174 (1873). Boulay 

 Muse. Gall. 34 (1884). LiMPR. in Rabenh. D. kr. fl. Laubm. iii, 489 (1899). 



Dioicous ; in depressed, flat olive-green glossy tufts. Stem creeping, 

 radiculose, secondary divisions ascending, pinnate with close, erect, 

 filiform, pointed branches. Leaves crowded, imbricated or slightl}- 

 secund, concave, entire, all pointing upwards and forwards, those of main 

 stem longish ovate, symmetric, gradually acuminate, narrowed at base, 

 the nerves indistinct ; those of branches lanceolate acute ; cells linear, 

 pointed, at the concave angles yellow, quadrate and rectangular. 



