Bartramiace^.] 317 [Catoscopium. 



Catoscopium nigritum Brid. Bry. univ. i, 368 (1826). Nees Hornsch. Bry. germ, ii, P. 2, 

 iga, t. 42 (1831). HuEBEN. Muse. germ. 152 (1833). De Not. Syllab. 226 (1838), 

 Epilogo 443 (1869). Br. Sch. Bry. eur. Fasc. 12 (1842). Rabenh. D. kr. fl. ii, S. 3, 

 188 (1848). C. MuELL. Synops. i, 510 (1849). WiLS. Bry. brit. 285, t. 14 (1855). 

 ScHiMP. Synops. 405 (i860), 2 ed. 498. Berk. Hamb. br. m. 168, t. 15 (1863). Milde 

 Bry. siles. 236 (1869). Hobk. Synops. 132 (1873). Juratz. Laubm. oester.-ung. 316 

 (1882). BouL. Muse, de Fr. I, 533 (1884). Lesq. James Moss. N. Amer. 211 (1884). 

 HuSN. Muse. gall. 283, t. 79 (1890). Limpr. in Raben. D. kr. fl. Laubm. ii, 518 (1893). 



Dioicous ; densely caespitose, bright or olive green above, ferruginous 

 and radiculose below ; stem filiforna, sparingly branched, uniformly 

 leafy. Leaves erecto-patent, lanceolate acuminate, not decurrent, 

 margin entire slightly recurved, nerve vanishing in the point ; cells 

 small, rectangular, quadrate at basal angles. Perich. bracts larger, 

 semivaginant at base, lane. -subulate, flat at margin. Caps, on a 

 purple seta, horizontal or nutant, globose, very small, pachydermous, 

 with a short curved neck, reddish-brown, finally black, shining, hard and 

 brittle. Calyptra narrow, cucullate. Lid depresso-conic. Peristome 

 of 16 incurved pale bluntly lane, teeth, irregular at margin, endostome 

 none or sometimes presenting a short membrane. Male infl. gemmiform, 

 bracts, ovato-subulate. 



Hab. — Wet mountain rocks and marshy heaths, not common. Fr. 7 — 8. 



Ben-y-Gloe and Craig Ower, Blair Athol. Breadalbane range. Sands of Barry, Dundee 

 [Don). Vi^iddy bank, Teesdale (Borrer and Nowell). Southport Sands. 



Tab. LXXVI. A. Conostomum boreale (Craigailleach, Braithwaite). B. Bartramia Oederi 

 (Teesdale, Nowell). C. B. pomiformis (Abbey wood, Braithwaite). D. B. Norvegica 

 (Cwm Idwell, Braithwaite). E. B. ithyphylla (Ben Lawers, Braithwaite). 



Tab. LXXVII. A. Bartramia stricta .(Maresfield, Davies). B. Philonotis Wilsoni (Clova 

 Croall). C. P. rigida (Arklow, Moore). D. Catoscopium nigritum (Ben-y-Gloe, Horn). 

 E. Phil, caspitosa (Walton Swamp, Wilson, and Breslau, Milde). 



Tab. LXXVIII. A. Philonotis seriata (Clova, Fergusson). B. P. fontana (Tummel bridge, 

 Braithwaite). C. P. calcarea (Teesdale, Braithwaite). D. P. adpressa (Skye, Binstead). 

 E. Bneutelia arcuata (Lydford, Holmes). 



