—41- 



narrowed with conspicuous turgid incurved margins, black. Spores eight in 

 each ascus, fusiform-acicular or "fusiform-oblong" 5-13-septate, the loculi 

 squared, 40-45 x 5-6 ^c, asci ventricose, paraphyses confused. 



On water oak, Sanford, S. Rapp. 



Seems to be new to the United States. 



Opegrapha herpetica Ach. Syn. p. 72. 



Thallus dusky-olive or brownish, smooth or slightly uneven, sometimes 

 cracked, limited with a fuscous line. Apothecia small, (0.5-1.0 mm.) innate or 

 slightly emergent, variously shaped, but typically lirellate, straight or curved, 

 simple or once divided, terminations obtuse, disk rimaeform commonly, but ulti- 

 mately more open, margin thick, rounded, and inflexed, black. Spores eight in 

 each ascus, fusiform, 3-septate, colorless, 15-24 x 3-4.5 m, asci ventricose, para- 

 physes indistinct. 



On bark of oak, Sanford, S. Rapp. 



Previously unreported from Florida, and otherwise known to the writer 

 from New York, only. 



Arthonia pruinosula Nyl. Prod. Nov. Gran. p. 573. 



Thallus epiphlaeous, effuse, ashy or whitish-ashy, K — , C — . Apothecia 

 rounded, angulate-rounded or oblong, small (about 0.5 mm.) scattered or some- 

 times connate, innate, sometimes circumcised, commonly a little convex, black, 

 but suffused with an ashy or whitish pruina. Spores eight in each ascus, oblong, 

 one end pointed, the other rounded and larger, colorless, 15-19 x 4.5-6 ^t, asci 

 saccate, hypothecium colorless, hymenial gel. with I-f-wine-red. 



On petioles of Sabal palmetto, Sanford, S. Rapp; Daytona, Merrill. 



This is the plant mentioned by Willey in the Synopsis Artho., p. 38, note. 



Arthonia macrotheca Fee, Ess. Suppl. p. 42; Plate 40, f. 18. 



Thallus epiphlaeous, effuse, whitish-ashy, K — , C— . Apothecia large 

 (1-3 mm.), irregularly rounded, angular-rounded or sub-lobate, depressed, plane 

 or slightly convex, scattered, aggregated or confluent, with or without a spurious 

 thalline margin, black. Spores eight in each ascus, when young bilocular and 

 constricted centrally, muriform and the stricture continuing when mature, 

 brown or decolorate, 57-80 x 23-30 ^t, asci saccate, hypothecium colorless, hy- 

 menial gel. with I+wine-red. 



On Magnolia glauca, Sanford, S. Rapp. 



This species is believed to be unrecorded for the United States, except Texas. 



Pyrenula (Arthopyrenia) analepta (Ach.), comb. nov. 



Thallus subcortical, coloring the bark a light or dark brown. Perithecia 

 hemispherical, dimidiate, rather small. Spores eight in each ascus, colorless, 

 i-septate, constricted at the septa, one cell larger than the other, 18-24 x 6-8 

 ^paraphyses lax or confused, asci clavate. 



On Ilex opaca, Sanford, S. Rapp. 



Not previously reported from Florida, at least under the present name. 



Rockland, Maine, 



