350 



INDEX; 



Thecse and paraphyses, disaggregation of, by mineral acids, 1 14 ; by boiling 



the apothecium, 114. 

 Theories regarding the reproductive function, 25. 

 " Time-stains" (vernacular name), 4. 

 Tonics, use as, 83, 153, 156, 183. 

 Tournefort, classification of, 23. 

 "Tournesoi," 137. 

 "Tousch," 179. 



"Tree Hair," 127 ; "Tree Lungwort," 183 ; " Tree-moss," 123. 



Trees, Lichens not destructive to, 102. 



" Tripe de Roche," 82, 96, 174. 



Tropical species, 96, 98, 133, 184, 246, 296. 



Tubular tissue of medullary layer of thallus, reaction of iodine on, 114. 



Tulasne, researches of, 23, 28, 310. 



Typical British species, description of, 17, 117, 121. 



" Ulf-mossa" of Scandinavia, 131. 



Umbilicated thallus, 36, 173, 290. 



Uniform thaUus, 35, 235, 239, 305. 



Upholstery, use of, in, 93. 



Urceolate apothecia, 230, 234, 243, 299. 



Usnea, 24. 



Usnic acid, 266. 



Varieties of species, causes of, 54, 98, 124. 



Variolarioid state of apothecia, 216 ; of thallus, 57, 216, 221, 297. 

 Vegetable soil, use in creating, 78. 

 Vegetative system of Lichens, 32. 

 Veiled apothecia, 131, 296. 

 Ventricose podetia, 276. 



Verruciform apothecia, 61, 295, 296, 299, 301. 



