INDEX. 339 



Frondose thallus, 35. 



Fruticulose species, 109 ; fruticulose thallus, 36, 131, 272, 287. 

 Fumaric acid, 91, 155. 



Fungi, affinity to (vide Affinity) ; parasitic, 59, 310. 

 Furfuraceous degeneration of thallus, 43, 144, 186, 197, 202, 279. 



Gallic acid, 84, 155, 209. 



Gsertner's theory of reproduction of Lichens, 25. 



(l Gelatinous Lichens," 276; gelatinous thallus, 276. 



Geographical distribution of Lichens, 95, 124, 133, 141, 155, 164, 167, 178, 

 199, 219, 246, 269, 273, 289; horizontal distribution, 99; vertical, 100 ; 

 irregularities in, 100, 184. 



Geological age of Lichens, 53. 



Germination of the spore (vide Spore). 



Gibbi, 181. 



Gliadine, 209. 



Globose apothecia, 287, 290, 294, 301. 

 Globuli, 44. 

 Glomeruli, 44, 188. 



Gonidia, structure, 40, 46, 192, 275, 277, 304 ; functions of, 41, 58. 

 Gonidic layer of thallus, 39 ; in hypertrophic or abnormal states, 41, 57, 265, 



277, 304; gonidic reproduction, 41, 58. 

 Growth and decay of thallus, 50, 56. 

 Granitoid rocks, Lichens growing on, 103, 305. 



Gum in the thallus, 40, 81, 93, 141, 148, 155, 158, 183, 197, 209, 267, 

 269, 279. 



Gymnocarpous fructification, 60, 63, 277. 

 Gyrophoric acid, 84. 

 Gyrose apothecia, 173. 



