GENERAL INDEX 



223 



Damping off, 29 



De Bary, contribution to mycology by, 158 

 decurrent, extending down the stem (PI. 7. f. 4, 6) 

 . Delaware, exploration for fungi in, 170 

 determination of species, 206 

 devil's snuffboxes, 136 

 diatoms, 9 



dictyoid, the same as mnriform, q. v. 

 didymoid, twin ; composed of two cells (PI. i. f. 7-9) 

 Discomycefes, 35 ; an obsolete group name for the Pezizales and their allies 

 downy mildews, 29 ; a group of fungi belonging to the Peronosporales 



Earth -stars, 137, 140 



eccentric, attached at one side of the centre 



edible fungi, 144 



Ellis, contribution to American mycology by, 162, 163 



endospore, the inner wall of a spore. 



epixylous, growing on wood 



ergot, 43, 44 ; a disease of rye caused by Clainceps 



erumpent, breaking through the bark or epidermis 



Fairy-ring, llS 



ferns, 8, 9 



field mushroom, 122 



field notes, 203, 204 



fission in fungi, 13 



Florida, exploration for fungi in, 170 



fly-agaric, 119, 120 



Fries, contribution to mycology by, 157 



fungi, chemistry of, 15, 16 ; conditions of growth, 16 ; classes of, iS, 19; 



species among, 19 ; germination of, 20 ; origin of, 12 ; relation to algae, 



II, 12, 67; distinguished from green plants, 6, 7; compared with 



animals, 7; number of, 10 ; reproduction in, 13 

 fungicides, 20, 21 

 Fungi exsiccati, of Arthur and Hoi way, 93 ; of Ellis, 163 ; of Kellerman 



and Swingle, 175; of Ravenel, 161 ; of Seymour and Earle, 159; of 



Shear, 1 86 



fungi imperfecti, 35, 68 

 fungous diseases, 20, 21, 22 

 fungus cellulose, 13 



Gemmation, 13, 36 ; reproduction by budding 

 Georgia, exploration for fungi in, 171 

 gleba, the gelatinous spore-mass in the Phallales 

 grape mildew, 30, 31 

 Greenland, exploration for fungi in, 197 



green plants distinguished from animals, 5,6; from fungi, 6, 7 ; com- 

 pared with animals, 9, IO 



Haustorium, 13 ; a projecting portion of a hypha which penetrates a cell of 

 a host enabling the fungus to obtain its supply of food ; sometimes the 

 hypha merely forms a disc on the surface of the cell 



