FUNARIACEAE 59 



immersed, cleistocarpous, subglobose, minutely apiculate, col- 

 ored, possessing spore-sac and a columella which may be par- 

 tially absorbed at maturity; stomata present; capsules dehiscing 

 irregularly; calyptra small, campanulate, torn at base but 

 sometimes on one side only. Spores maturing in late autumn 

 to early spring. 



The very abundant protonema in this and in Nanomitrium is 

 a striking feature, as it often almost obscures the plant when 

 mounted under the microscope. 



Key 



i — Leaves ecostate 2 



Leaves costate 3 



2 — Leaves strongly serrate; stomata at base of capsule only serratum 



Leaves very slightly serrulate above; stomata on the upper part of 



capsule megalosporum 



3 — Calyptra papillose, leaves papillose both sides papillosum 



Calyptra smooth 4 



4 — Costa excurrent into a long spinulose awn-like acumination which 



constitutes the greater portion of the 'eaf above the capsule, spinulosum 



Leaves gradually long-acuminate, scarcely serrate at apex sessile 



Leaves gradually long-acuminate, strongly serrate at apex, crassinervium 



E. crassinervium (Schwaegr.) CM. "On damp ground, 

 very common," Muse. App. 48 (in part); Closter and Palisades, 

 N. J., Austin, Bx!; Batsto, N. J., James. 



E. megalosporum (Aust.) Salmon. Closter, N. J., Austin, Bx!; 

 Orange, Bry. Ct. 



E. papillosum Aust. "On thin soil and rocks, Palisades, 

 N. J.," Muse. App. 50. 



E. serratum (Schreb.) Hampe. "Fields and gardens near 

 Closter, N. J.," Muse. App. 47b; ten collections from S. Id., 

 mostly near New Dorp, E. G. B., Bx! 



E. sessile (B. & S.) CM. "Closter, N. J., Austin," L. & J. 

 Manual: 39. 



E. spinulosum Schimp. "Inundated or wet places, very 

 common," Muse. App. 49; New Dorp, S. Id., and Bronx Park, 

 E. G. B., Bx! 



