777 



Thiobacteriaceae, 38 



Thiocapsa, 39 



Thiocystis, 39 



Thiodictyoiij 39 



Thiogens, 25 



Thiopedia, 39 



Thiophysa volutans, diameter of, 22 



Thiopolycoccus, 39 



Thiosarcina, 39 



Thiospirillum, 39 



Thiothece, 39 



Thiothrix, 38; nivea, 38 



Thoma's haematimeter, 617; details of, 



618, 620 

 Threshing machine active in spread of 



smuts, 179 

 Thyridaria tarda, 490 

 Tillet, Matthieu, mentioned, 182 

 Tilletiaceae, characters of, 182 

 Tilletia, descriptions of various species, 



184, 185 

 Tilletia foetans, chlamydospores of, 561; 

 tritici, description of, 184; figure of, 

 183 

 Tilmadoche mutabilis, figure of, 17 

 Timber decay, 553 

 Timber sap-rot, 558 

 Tip-burn of potato, 575 

 Tissue forms of cecidia, 397 

 Toodstools, 231 et seq.; guide to de- 

 scription of, 728, 729 

 Tobacco, 550; mosaic disease of, 578; 



root-rot, 550; section of tumor, 392 

 Toothwort as a root parasite, 299 

 Top-dry, 565 

 Tornadoes, injury by, 311 

 Torsion, 339 



Toxicology of mushrooms, 237, 238, 239 

 Trama, 232 



Trametes pini, 519; radiciperda, injury 

 by, 311; robiniophila, occurrence of, 

 228; species of, 229; suaveolens, 

 occurrence of, 228 

 Transfer of fungi, 624 

 Tranzschelia punctata attack on Hepat- 

 ica triloba, 348 



Traumatism, 294 



Treatment of cavities, 321 



Tree surgery, figures of, 320; literature 



on, 324; in general, 319 

 Trehalase, 58 

 Trehalose, 53, 58 

 Trembling fungi, 217 

 TremellacesB, characters of family, 217; 



mucilage in, 52 

 Trichia, 15; chrysosperma with yellow 

 elaters, 17; fallax, 15; scabra, Plas- 

 modium of, 12; varia with yellow 

 sporangia, 17 

 Trichothecium roseum, 61; chitin in, 52 

 Tricotylous races, 329 

 Trimethylamin in spores of Tilletia 



caries, 56 

 Tripe de roche, 83 

 Triplasy, 339 

 Trophic correlation, 404 

 Trophomorphosis, 404 

 Tropisms of plasmodia, 12 

 Trommelschlagel, 25 

 Truflles and rodents, 68 

 Truffles, occurrence, 151, 153 

 Trypsin, 58, 59 

 Tuberaceae, characters of, 151 

 Tubercles of velvet bean, figure of, 386 

 Tuber, characters of various species, 

 153; figures of, 152; Requenii and 

 black beetles, 71 

 Tubeuf, Carl von, quoted, 553 

 Tubifera Casparyi, plasmodium of, 12; 



ferruginea red plasmodium of, 12 

 Tuckahoe, 72 

 Tugging-ant and Rozites gongylophora, 



365 

 Tumescence, 352 



Tumor on apple stem, figure of, 390 

 Tumor, figure of section of tobacco, 392 

 Tumors in plants, 34, 342 

 Turnips, brown- rot, figure of, 486 

 Tyloses, 370; figure of, 369 

 Tylostomacese, 241 



Types of colonies, 626, 627; of stab 

 cultures, 627 



