VERMONT MOSSES. 31 



4. — Leaves entire. 3. 



Leaves sharply serrate to the middle. turfaceum. 



5. — Capsule obovate, campanulate when dry. Muellerianum. 



Capsule obloug, constricted under the mouth when dry. denticulatum. 



P. denticulatum (L. )Br. & Sch. On the fi;r(nind and moist rocks in 

 mountain regions. Mt. Mansfield, P., (7., and F.; Monkton, P.; 

 Johnson, G.; Brattleboro, Fr.; Westinore and Mt. Hor, F. 



p. deplanatum (Sch.) Grout. {Ilypnum drplanatum Sch.) Limestone 

 cave east of High Bridge, Burlington, G. 



This is one of the three new binomials in the list and is inserted because of the difficulty 

 of making an intelligible key if retained in the position given it in the Manual. 



P. Muellerianum Sch. On soil, Mt. Mansfield, P. 



The specimen which is referred to this species is incomplete and the 

 determination somewhat uncertain. In herb. C. G. Pringle. 



P. striatellum (Brid.) Lindb. (P. Muhlenbeckii Br. & Sch.) Willoughby 

 Mt., Mr. Hor, and Jay Peak, F.; Mt. Mansfield, G. 



P. sylvaticum ( Huds. ) Br. & Sch. On earth and stones in moist and shady 

 places. Mt. Mansfield and Charlotte, P.; Peacham, BL; Mt. 

 Mansfield, and Stratton, G. 



P. turfaceum Lindb. Oh decaying wood on borders of Porter's swamp, 

 Colchester ; submerged at high water, G.; on soil, Peacham, BL; 

 Underbill Notch, G. 



^) 



EAPHIDOSTEGmM( Br. &Sch.) De Not. 



R. recurvans (Mx. ) Jaeger & Sauerb. On trees and rotting logs. 



Monkton, Underbill, and Smuggler's Notch, P.; Stowe, P.; 

 Peacham, BL; Brattleboro, Fr. 



Family XX. Brachytheciaceae. 



BRACHEYTHECIUM Br. & Sch. 



I. — Costa extending into apex. 2 



Costa extending J^—% length of leal. 4 



2.— Seta rough throughout ; plants slender. 3 



Seta nearly smooth at base ; plants more robust. populeum 



3. ^Plants very slender ; leaf cell 3-5:1. reflexum 



Plants more robust ; leaf cells 8-10:1. glaciale, 



4. — Branch leaves entire. 5 



Branch leaves serrate. 6 



