DICRANACEAE 29 



ent. The capsules present variations similar to those of 

 Dicranum , but capsules that remain erect and symmetric when 

 dry and empty are rare. Our species are all dioicous. 



Key 



i — Seta yellowish, sometimes becoming dark with age 2 



Seta red 3 



2 — Capsule oblong, tapering at the neck, sulcate, mouth incurved 



when dry heteromalla 



Capsule oblong, tapering at the neck, scarcely plicate, mouth erect 



when dry heteromalla orthocarpa 



Capsule gibbous, strumose at neck, smooth when dry cerviculata 



3 — Leaves entire 4 



Leaves serrate or denticulate 5 



4 — Leaves secund; capsule striate when dry; operculum nearly as long 



as urn ; annulus present secunda 



Leaves scarcely secund; capsule smooth when dry: operculum }4 



length of urn; annulus lacking varia 



5 — Leaves subsquarrose, from a sheathing base Schreberi 



Leaves secund or erect, pellucid by reason of very large thin-walled 

 cells rufescens 



D. heteromalla (L.) Schimp. Frequent on shaded, sandy 

 banks. Autumn-winter. 



Var. orthocarpa (Hedw.) E. G. B. [Var. Fitzgeraldi (R. & C.) 

 Grout.] The most common and abundant moss of the region. 

 Sandy shaded places. Autumn. Hedwig's Dicranum or thocarpum 

 was from Lancaster, Pa. Since learning this fact I have changed 

 my opinion as to the name of this form. True D. heteromalla 

 with the characteristic curved and wrinkled dry capsule is not 

 very common wherever I have explored in this vicinity. 



D. cerviculata (Hedw.) Schimp. "To N. J. and N. Y.," N. 

 Am. Flora. "Peat bog, Hoboken, N. J., Torrey," Muse. Allegh. 

 167 and Muse. Bor. Am. 49 (Fide E. G. B.). Summer." 



D. rufescens (Dicks.) Schimp. "Along shaded banks along 

 roadsides throughout northern N. J. and southern N. V.," Muse. 

 App. 74; Bronx Park, E. G. B., Bx!!; clay pits at Kreischers- 

 ville, and near mausoleum in Moravian Cemetery, S. Id., E. G. 

 B., Bx!; Glen Cove, L. Id.!! Summer. 



D. varia (Hedw.) Schimp. "On moist banks, rare in Bergen 

 Co., N. J.," Muse. App. 78; Mendham, N. J., Austin, Bx!!; 



