l6o THE WEST \TRGIXIA FLORA 



Super thallum Ricasolia sitblaez'is Nvl. Fayette : near 

 Nuttallbnrg (L. IV. Nuttall coll. no. 1781). 

 L. ViRGiNiENSis Calk. & Nyl., Bot. Gaz., 22:333, (1896). 



Thallus glaucescens tenuis Irevigatus rimulosus citrino- 

 flavus ; apothecia fusca aut nigra convexiuscula immarginata 

 latit. circ. 0.5 mm., intus medio sordida ; spora oblonga in- 

 coloris, long. 0.009-0.012, crass. 0.004-6 mm.; epithecium et 

 pars media hypothecii dilute fuscescens. In toto gelatina 

 hymenialis coerulescens, dein theca vinose rubescens. 



E stirpe videtur Lccidca saiit^iiinco-afra, prope Lccidcam 

 dclincatani Nyl. 



On sandstone rock under the drip of a wet cliff. Fayette : 

 near Nuttallburg (L. W. Nuttall coll. no. 1779). 

 L. ERICINA Nyl. 



Bark of trees {Nuttall, 1047). 



L. PLATYCARPA STERIZA (Ach.) Nyl. 



On a rock (Sheldon, 4030). 

 L. SPEIREA Ach. 



Fayette: near Ouinnimont (Pollard & Maxon, 134). 

 L. ALBOCOERULESCENS (Wulf.) Schjer. 



Fayette: near Ouinnimont (Pollard & Maxon, 138). 



L. CRUSTULATA Ach. 



On stones (Sheldon, 4058). 



BUELLIA DeNot. 



B. MYRiocARPA (DC.) Mudd. 



On bark of trees (Nuttall, 1185). 



B. PETRAEA (Fl.) Tuck. 



On sandstone rocks (Nuttall, 1071). 

 B. COLLUDENS Nyl. 



On sandstone (Shcldou, 2289). 



G R A P H I D A C E AE. 



OPEGRAPHA Humb. 



O. VARiA (Pers.) Fr. 



Bark of trees (Nuttall, 1034). 

 O. ATRA Pers. 



Bark of trees (Nuttall, 1033). 

 O. MiNUTULA Merrill ined. 



On sandstone ledge (SJieldou, 39S7). 



