106 ADDITIONS AND CORRECTIONS. 



where linear-flexuous ; capsule oblong, erect, long-pedicellate ; operculum ros- 

 tellate, with a conic base ; annulus narrow, fragmentary ; peristome small ; 

 teeth narrow-lanceolate, incurved, pale yellow, remotely 5 - 6-articulated, with 

 alternate cilia short and fugacious ; calyptra dimidiate, large, extending to the 

 base of the capsule ; perichcetial leaves lanceolate, erect, sheathing, hyaline, 

 ecostate. — On rocks and trunks of trees, White Mountains, New Hampshire, 

 James. — A small csespitose species, with thread-like branches, and greenish 

 or yellowish lustreless foliage. 



Page 69. 



IS"". Hypnuili piliferuui, Schreb. Dioecious; stems procumbent, 

 extended, divided, subpinnately ramulose, the branchlets attenuated; leaves 

 loosely imbricating, ovate-oblong, very concave, suddenly contracted into a 

 long flexuous hair-point, serrulate above the slender costa, vanishing about 

 half-way ; capsule oblong, arcuate, annulate ; operculum as long as the cap- 

 sule ; calyptra large ; pedicels rough. — On the ground in dense woods. New 

 England to Pennsylvania and Ohio. — A large species, with pale-green and 

 shining leaves. 



ERRATA. 



Page 24, last line, for " osmundioidos " read " osmundioides." 



Page 54, line 11 from bottom, and page 55, line 13, for "Z). E. Eaton " read 

 • D. (J. Eaton." 

 Page 56, line 12 from bottom, for " Dychelyma" read "Dichelyma." 



