PLATE 29 

 COLLEMACEAE— PELTIGERACEAE 



(a. Habit xl; b. Section of apothecium; c. Spores; except as 



otherwise indicated) 



1. Collema pulposum (Bernh.) Ach. 



(Fink Lich. ]\linn. pi. 21, after Schneider) 



b. x400 



c. x650 



2. Leprocollema americanum Wain. 



(Zahlbr. Nat. Pfl. p. 166, after Reinke) 



a. x6 



b. xl20 



3. Leptogium tremelloides (L.) S. F. Gray 



(Fink lb. pi. 22, after Schneider) 



b. x400 



c. x650 



4. Thermutis velutina (Ach.) Th. Fr. 



(Zahlbr. lb. p. 150, after Reinke) _ 



a. Habit xl; apothecia and hvphae xl5 



b. x50 



5. Ephebe lanata (L.) Wain. 



(Id. p. 151) 

 a. Habit xl; tip of thallus x330 



6. Heppia virescens (Despr.) Nyl. 



(Id. p. 174, after Reinke) 



a. x3 



b. x50 



c. xlOOO 



7. Peltigera canina (L.) Hoffm. 



(Clem. Colo., 1929) 



b. x45 (Fink lb. p. 163, after Reinke) 



c. x500 



8. Solorina saccata (L.) Ach. 



(Lind. Flecht. 153:90) 



