30 Trans. Acad. Sci. of St. Louis 



48. Lecanora varia, var. symmicta, Ach. 



On mulberry ; hickory; scrub oak. 



49. Lecanora xanthophana, Nyl. 



Rare. On magnolia. 



Rinodina. 



50. Rinodina constans, (Nyl.) Tuck. 



Rare. On magnolia. 



51. Rinodina flavo-nigella, Tuck. 



Rare. On rotten log; stump ; dead live-oak ; persim- 

 mon; black-jack oak. 



Pertusaria. 



52. Pertusaria communis, DC. 



Common. On oak; red oak; black oak; persimmon; 

 hickory. 



53. Pertusaria leioplaca, Kbr. 



Abundant. On mulberry ; linden ; magnolia ; red oak ; 

 hickory; live-oak; Liquidambar ; chinquapin oak. 



54. Pertusaria multipunct a, (Turn.) Nyl. 



On live-oak; hickory; oak stump; magnolia; pine; 

 oak; water oak; pine stump; Cornus fiorida ; linden; 

 red oak; plum; Ilexopaca; dead pine. 



55. Pertusaria pustulata, (Ach.), Nyl. 



On Myrica; chinquapin oak. 



56. Pertusaria velata, (Turn.) Nyl. 



Common. On Carpinus; magnolia. 



57. Pertusaria wulfenii, DC. 



Rare. On hickory; Carpinus. 



Gyalecta . 



58. Gyalecta lute a, (Dicks.) Tuck. 



On Cornus fiorida. 



59. Gyalecta pineti, (Schrad.) Tuck. 



On pine; Polyporus. 



Thelotrema. 



60. Thelotrema domingense, (Fee, Nyl.) Tuck. 



Common. On Ulmus; hickory. 



