VERMONT MOSSES. 15 



3. — I^eaves long linear, acute, abruptly mucronate. humilis. 



Leaves very long acuminate, cuspidate. 4- 



4.— Leaves twisted crispate when dry, of one layer cf cells above. tortuosa. 



Leaves not crispate, of two layers of cells above. fragilis. 



5. — Capsule oval ; annulus lacking. aeruginosa. 



Capsule cylindric ; annulus of two rows of narrow cells. tenuirostris. 



M. aeruginosa (Sm.) Lindb. {Gymnostomum rupestrc Sch.) Cliffs of L. 



Champlain, P. ; Rock Point, Burlington, G. ; Brattleboro, Fr. Base 



of Mt. Hor Cliffs, F. 



M. fragilis (Drumm.) Lindb. {Barbula fragilis, Br. &Sch.) Mt. Mans- 

 field, F. 



M. humulis ( Hedw. ) Braith. { Barbula caespitosa Schwaegr.) Brattleboro, 

 Fi'.; Swamps, Charlotte, P. 



M. tenuirostris (Hook and Tayl.) Lindb. {Didymodon cylindrims Br. ct 

 Sell. ) Rock Point, Burlington, G. 



M. tortuosa (L) Schrk. {Barbula tortuosa Web. & Mohr.) Rocks and 

 banks. Peacham, Bl; Mt. Mansfield summit and Willoughby 

 Lake region, F. 



M. viridula (L) Lindb. (Weissia viridulaBrid.) On the ground under 

 various conditions. Mt. Mansfield, B.; Hinesburgh, P.; Peach- 

 am, BL; Brattleboro, Fr. 



POTTIA Ehrh. 



P. truncatula (L) Lindb. (P. truneata Fnern.) On the ground in a 

 pasture. Brattleboro. Fr.; Burlington, L. R. Jones. 



TORTULA Hedw. 

 T. mucronifolia Schwaegr. Shelburne Point, /'. 

 Family IX. Weberaceae. 



WEBER A Ehrh. 



W. sessilis (Schmid.) Lindb. {Diphy.^cium foliosum Mohr.) Moist rocks 

 anil lianks ; frequent in mountainous regions. 



Family X. Grimmiaceae. 



ANOECTANGIUM Hedw. 



A. Lapponicum Hedw. {A-}i)phoridimn Lapponicum i^chhu]).) Fissures of 

 rocks. Mt. Mansfield, P. 



