^62 LICHENS d' EUROPE 



TABLE ALPHABÉTIQUE DES GENRES. 



Alectoria Ach. (p. p.) ; Nyl III 



Cetraria (Ach.) Nyl XVI 



Cladina Nyl IX 



Cladonia (Hill.) Hoffm X 



Dufourea Ach, (p. p.) ; Nyl IV 



Evernia Ach VI 



Gyrophora Ach XXXI 



Letharia Zahlb V 



Nephroma Nyl XXIII 



Nephromium Nyl XXIV 



Neuropogon Nées et Flott II 



Parmelia (Ach.) Nyl XVIII 



Parmeliopsis Nyl XIX 



Peltidea Nyl XXV 



Peltigera Hoffm XXVI 



Physcia (Fr.) Nyl XXIX 



Pilophorus (Tuck.) Th. Pries XIII 



Platysma (Hffm.) Nyl XVH 



Pycnothelia (Ach.) Duf XI 



Ramalina Ach VII 



Ricasolia De Not XX 



Roccella DC VIII 



Siphula Fr XIV 



Solorina Ach XXVII 



Stereocaulon Schreb XV 



Sticta Ach. (p. p.) ; Nyl XXI 



Stictina Nyl XXII 



Thamnolia Ach XII 



Umbilicaria (Hffm.) DC XXX 



Usnea (Dill.) Ach I 



Xanthoria (Fr.) Th. Fries XXVIII 



