446 [December, 



Barbtjla papillosa Wilson, London Jour. Bot. 1845. p. 192. 

 Hab. Common on Elm trees, Massachusetts, Buttonwood trees, New Jersey 

 and Delaware. 



B. tortuosa Weber & Morh. Bot. Taschb. p. 205. Brid. 1. p. 574. Bry. 

 Europ. 13-15. p. 26. t. 13. ex parte. 

 Hib. On the ground, open woods, near Falls of Niagara. 



B. muralis Hedw. Sp. Mus. p. 123, Bry. Europ. 13-15. p. 35. t. 20. 

 Hib. In dry situations, Lancaster County, Penn. Prof. Porter. 



Zygodon lapponicus Bry. Europ. 4. p. 6. Gymnostomamlapponicum^ Hedw. 

 Muse. Fr. 3. p. 12. t. 5. 



Hab. In fissures under shaded rocks, Pennsylvania, Catskill, N. Y., and 

 White Mountains, N. H. 



Z. mougeotii Bry. Europ. 4. p. 7. 

 Hab. Similar situations. 



Grimmia donxiana var. obtusa Smith Fl. Brit. p. 198. 



Hah. In wet situations, Mount Washington, White Mountains, N. H. 



G. leucdph,ea Grev. Trans. Wer. Soc. 4. t. 6. Bry. Europ. 25-28. p. 28. t. 20. 

 Hab. On rocks, Andover, Mass., Pine barrens, New Jersey. 



G. acicularis C. Mull. Syn. Mus. frond. 1. p. 804. Racomitrium aciculare, 

 Brid. 1. p. 219. Bry. Europ. 25-28. p. 5. t. 1. 

 Hab. On rocks in rivulets, Catskill, N. Y., White Mountains, N. H. 



G. canescens C. Mull. Syn. Mus. fr. 1. p. 807. Racomitrium ca?iesce?is, Brid. 

 1. p. 208. Bry. Furop. 25-28. p. 12. t. 7-8. 

 Hib. Wet rocks near Wissahickon, Philadelphia, Penn. 



Pterogoxium filiforme Hedw. St. Cr. 4. t. 7. Engl. Bot. t. 2297. Hooker 

 & Taylor, Muse Brit. p. 75. t. 24. 

 Hab. White Mountains, N. H. 



Neck.era complanata Hub. Muse. Germ. p. 575. Bry. Europ. Fasc. 41-45. 

 Leskea Omalia complanata, Brid. 2. p. 327. 



Hab. Under surfaces of dry rocks, Catskill, N. Y., and White Mountains, N. H. 



Dichelyma falcatum Myrin. in Act. Reg. Acad. Sc. Holm. 1852. p. 274. t. 

 6. Bry. Europ. Fasc. 16. p. 6. t. 1. 

 Hab. Head waters of the Saco river, White Mountains, N. H. 



Fontinalis dalecarltca Bry. Europ. Fasc. Sup. c. t. 1. 

 Hab. In rivulets, common, White Mountains, N. H. 



Hypnum trichomanoihes Schreb. Sp. Fl. Lips. p. 88. Neckera trichomanoides. 



Hartm. Sk. Fl. Ed. 5. p. 338. Leslea Omalia trichomanoides, Brid. 2. p 329. 



Hab. Under surfaces of dry rocks, Catskill, N. Y.,and White Mountains, N.H. 



H. denticulatum Linn. Sp. PI. p. 1588. 



Hab. Dry situations near the Wissahickon, Philadelphia. 



H. depressum Bruch Ragensb. Bot. Zeit. 1824. H. confertum var. depressant, 

 Brid. 2. p. 765. 



Hab. On banks of the Schuylkill, Philadelphia. 



H. elegans Hooker Mus. Exotic, t. 9. 



Hab. Near "Glen House," White Mountains, N. H. 



H graminicolor Brid. Sp. Mus. 2. p. 254. Drum. Mus. Am. No. 132. 

 Hab. Under dry rocks near Wissahickon, Philadelphia. 



H. muhlenbeckii Br. Sch. in litt. H. Seligeri, Sw. ex parte fide Schimper. 

 H. pnlcJtellum, Br. & Sch. in Drum. Muse. Am. and Jour/of Bot. 1843. 2. p. 668. 

 Hib. Near Wissahickon, Philadelphia, and White Mountains, N. H. 



H. , n. sp. Cespites longissime fluitantes nigricanti-lutescentes et rufus- 



centes, apice rubescentes et virentes expositi, nitidi; caulis decumbens, vage 



