768 



Morchella, 170, 171; esculenta, analysis 

 of, 55 



Morel, 170, 171 



Morphology emphasized, 271; of bac- 

 teria, descriptive terms, 633; of 

 chestnut blight fungus, 497 



Mortierellaceae, characters of family, 103 



Mortification of tissues, 346 



Mosaic diseases, 327 



Mosaic of bean, 577; of tobacco, 578 



Mottle-leaf, 573 



Mould fungi, 92; sexual reproduction, 93 



Mounting bacteria, 588 



Movement of Plasmodium, 12 



Mucoraceae, character of, 97 



Mucor, figure of, 42; key to species, 

 695-702; mucedo, chitin in, 52; de- 

 scribed, 45; figure of, 44; occurrence 

 of, 83; sporangia of, 96; structure of, 

 98; racemosus, chitin in, 52; Rouxii as 

 Chinese yeast, 99; various species 

 of, 98 



Multinucleate cells, 372; giant cells, 

 371; spores of Rhizopus nigricans, 96 



Multiplication, 337 



Mummification, 342, 347 



Miinch, E., experiments on water and 

 air content of tissues, 280 



Murrill's arrangement of fleshy fungi, 

 228 



Muscaria, 56, 238 



Mushrooms, 231; chemistry of, 237; 

 cultivation of, 236, 237, 693; develop- 

 ment, 235, 236; figures of, 234, 746; 

 toxicology, 237, 238, 239 



Mutations, 328 



Mutinus caninus, development of, 248, 

 249; and flies, 67 



MyceHum, 42; of Endothia parasitica, 

 figure of, 496 



Mycetozoa, 7 



Mycocecidia, 393 



Mycodendron paradoxum, 226 



Mycoderma aceti, 59; nature of, 142 



Mycomycetes, 46, 120 



Mycoplasm, 49; Eriksson's, 190 



Mycorhiza, 49 



Mylitta australis, sclerotium of, 71 



Myriangiaceas, 153 



Myrica carolinensis, tubercles on roots, 



39 

 Myxamoebae, 15 

 Myxobacter, 40 

 Myxobacteriaceae, 21, 39 

 Myxococcus, 40 

 Myxogastrales characters of, 11; key to, 



693-695 

 Myxogastres, 7 

 Myxomycetes i, 7 



N 



Nanism, 346 



Nature of tree surgery, 320 



Necrosis, 342, 346; frost, of potato 



tubers, 569 

 Nectria cinnabarina, description of, 160 

 Nectria, figures of various species, 159 

 Neisser's counting apparatus, 629 

 Nematode infection, 651; worms as gall 



formers, 391 

 Neocosmospora vasinfecta, 646 

 Neoepigenesis, 404 

 Neoevolution, 404 

 Nidularia, 244 

 Nidulariaceae, character of family, 244; 



key to, 244, 245 

 Nitric organism, isolation of, 611 

 Nitrifying bacteria, 29 

 Nitrobacter, 29 

 Nitrogen cycle, ^y, deficiency, influence 



of, 278; fixation, 612; influence of, 278; 



source of in fungi, 55 

 Nitrococcus, 29 



Nitrosomonas, 29; javanensis, 29 

 Nodule-forming bacteria, 29 

 Nodules of roots, 387 

 Non-parasitic diseases, 564; bibliography 



of, 580 

 Normal solutions, 613 

 Nothofagus with Cyttaria, 74 



