54 



diffusa Nyl. Atl. 



excedens Nyl. Pac. 



platygraphidea Nyl. S. 



melaspora Tuck. lib. Apoth. iuiiate-depressed, linear or variously dif- 

 form, blacli. Spores 4 loc, becoming blackish-brown, .025-36 mm. by 

 .009-14 mm. Th. powdery, white. On dead wood. S. 



caudata n. sp. Apoth. minute, rounded-difform, depressed, black. Spores 

 fusiform, attenuate below, 6-8 loc, colorless, .02.5-36 mm. by .004-5 

 mm. Th. inconspicuous. On white pine. New Bedford. 



varians Nyl. Atl. 



3. Spores muriform. Arthotheli0M. 



interveniens Nyl. S. 

 ttediosa Nyl. S., Atl. 

 spectabilis Fl. S., Atl. 

 macrotheca Fee. S. 

 mesoleuca Nyl. S. 

 paralia Nyl. Atl. 



subcyrtodes n. sp. Apoth. rounded, convex, black. Spores 4-8, nmri- 

 forni, brown, .022-27 mm. by .008-10 mm. Th. uneven, whitish. S. 



Agtrium Fr. 

 rufum (Pers.) Fr. Atl. 



Mtcoporum (Fl.) Nyl. 



pycnocarpum Nyl. Atl., S. 

 sparsellum Nyl. G. 

 Several spp. of this genus are undetermined. 



Tribe IV. CALICIACEI. 



Fam. 1. SPH.^EOPHOREI. 



SiPHULA Fr. 

 ceratites (Wahl.) Fr. Arc. 

 simplex (Tayl.) Nyl. Arc. 

 dactyliza Nyl. Arc. 



Sph^eophords Pers. 



compressus Ach. Alp., Arc. 

 globiferus (L.) DC. Alp., Arc. 

 iragilis (L.) Pers. Alp., Arc. 



AcROSCTPHUS Lev., Mont, 

 sphserophoroides Lev. S. 



Fam. 2. CALICIEI. 



ACOLIUM (Fee) DN. 

 Bolanderi Tuck. Pac. 

 Californicum Tuck. Pac. 

 Carolinianum Tuck. S. 

 tympanellum (Ach.) DN. Pac. 

 chloroconium Tuck. Pac. 

 viridulum (Schser.) DN. Atl. 

 tigillare (Ach.) DN. G. 

 Javanicum (M. & V. d. B.) Stitz. S. 

 S'ti Jacobi Tuck. Pac, 



