EXPLANATION OF PLATES. 83 



Plate VII. 



Fig. 1. Sa(/edia cinerea, Fries, (p. 22.) 



A. Vertical section of thallus and apothecium. b. Sporidia. 



2. tSagedia fmcella. Fries, (p. 22.) 



A. Vertical section of thallus and apothecium. r. Sporidia. 



3. Sagedia viridula, Fries, (p. 23.) 



A. Vertical section of thallus and apothecium. b. Sporidia. 



4.. Sagedia ochrostoma, Borr. (p. 23.) 



A. Vertical section of thallus and apothecium. b. Sporidia. 



Plate VIII. 



Fig. 1. Sagedia aggregattty Fries, (p. 24.) 



A. Vertical section of thallus and apothecia. b. Sporidia. 



2. Sagedia circumscripta, (p. 24.) 



A. Vertical section of thallus and apothecia. b. Sporidia. 

 c. Apothecium detached from the thallus. 



3. Chiodecion mgrticola. Fee. (p. 25.) 



A. Section of thallodal wart and apothecium. b. Sporidia. 



4. Chiodecton albidum. (p. 25.) 



A. Section of thallodal wart and apotheciuin. b. Sporidia. 



