842 



INDEX. 



"Lichenes exsiccati," or fasciculi of dried specimens, 29, 121. 

 " Lichen-hair/' 127 ; lichen-starch, 80. 

 Lichenoides, 24. 



Lichenology, history of rise and progress of, 18; advantages of knowledge 



of, 7, 8 ; incentives to study of, 11, 15. 

 Lichestearic acid, 155. 

 Light, effect of, on growth of thallus, 48. 

 "Lima Orchella- weeds," 134. 



Lime, carbonate of, in thallus, 33, 209 ; phosphate, 156, 209 ; oxalate, 33, 



137, 218, 229, 232, 297 ; tartrate, 137. 

 Limited distribution of certain species, 100, 164, 184. 

 Lindsay, Mr. Wallace, analyses of the ash of Lichens, 51, 148, 156. 

 Linnaeus, classification of, 24. 

 Lirellse, or lirellate apothecia, 61, 245. 



Litmus, characters of, 85 ; adulterations of, 85 ; manufacture of, 85, 86, 224. 

 Living specimens, importance of examining, 107. 

 Lobes, thalline, 35. 

 Lowland species, 104. 



< ( Lungs of Oak," or " Tree Lungwort," 183. 



"Madagascar Orchella-weed," 134. 

 " Madeira Orchella-weed," 136. 

 Manna, 82, 213, 229 ; Mannite, 82. 

 Marginal apothecia, 62. 

 Maritime species, 11, 104, 132, 142, 306. 

 Maximum development of the thallus, 96. 

 Medicinal properties, 83. 



Medullary tissue of thallus, 39, 162, 163, 166, 192, 277, 281. 

 Membranaceous thallus, 35, 253, 276. 



Microscope, use of, in examination of tissues, 18, 21, 65, 111 ; directions for 

 purchase of, 59. 



