i 



284 PROCEEDINGS OF THE AMERICAN ACADEMY 



Gen. ANOMODON, H. S^ T. 



69. A. ATTENUATUS, Hedw. ; Bryol. Europ. t. 475. — Rocks in ra- 

 vines. 



Gen. LESKEA, Hedw. 



70. L. CAPiLLARis, Hedw. Muse. Frond. A, p. 25, t. 10. — On trees. 



Gen. CYLINDROTHECIUM, Schimp. 



71. C. MACROPODiUM, Hedio. Muse. Frond. 3, p. 55, t. 23. — Rocks, 

 mountain-sides. 



72. C. AMPLiRETE (sp. nov.) : robustum pallide virens nitidura late 

 casspitosum appressura dichotome divisum ; ramis latis complanatis ob- 

 tusis ; foliis oblongis apice plus minus obtusis ibidemque grossius serra- 

 tis, cellulis amj^lis ; capsula deficients. — Rocky ledges in woods. — 

 The characters above given appear to distinguish this species from 

 any of its known congeners. 



Gen. HELICOPHYLLUM, Brid. 



73. H. TORQUATUM, Brid.; Hook. Muse. Exot. t. 41. — On decayed 

 wood. 



Gen. RHACOPILUM, Beauv. 



" 74. R. TOMENTOSUM, Brid.; Hedw. Muse. Frond. 4, t. 19. — On 

 logs in woods. 



Gen. PILOTRICHUM, Beauv. 



75. P. UNDULATUM, Beuuv. ; Hedw. Muse. Frond. 3, p. 51, t. 21. — 

 Trunks of trees. 



76. P. FiLiciNUM, Beauv.; Hedw. I. c. t. 18. — Rocks in dense 

 woods. 



77. P. CYMBiFOLiUM, SidUv. Mosses U. States, p. 81, S^ Icon. 

 Muse. ined. t. 76. 



78. P. LOPHOPHTLLUM (sp. nov.) : dioicum ? pusillum ; caule pri- 

 mario repente, secundario erecto vix unciali inferne simplici reflexo- 

 folioso superne pinnatim et bipinnatim dendroideo-ramoso ; ramis 

 ramulisque rigidis tenuissimis brevibus ; foliis trifariis erecto-patenti- 

 bus ovatis breviter acuminatis concavis subserrulatis sparsim papillosis 

 pellucidis, cellulis oblongis ab invicem discretis, costis binis infra api- 

 cem abruptis dorso late cristatis ; capsula ovali-oblonga ramigena brevi- 

 pedicellata annulata ; perist. ext. dent, lanceolato-subulatis, ciliis linea- 

 ribus brevioribus ; calyptra mitriformi sparsim erecto-pilosa operculum 



