GENERAL INDEX 



425 



Pyrenomycetes, 282. 



Pyronema conflucns, sexual repro- 

 duction in, 85. 



Pythium debaryanum, 260. 



Pythium, fusion of nuclei in oogo- 

 nium and antheridium, 70. 



RADIUM rays, 171. 



Radulum, 354, 355. 



Ramularia, 287. 



Receptive papilla of oogonium, 74, 



75- 



Rennetase, 410. 

 Reproduction, asexual, 98. 

 Reproduction, sexual, 65. 

 Respiration, 123. 

 Resupinate, 361. 

 Rhipidonema, 355. 

 Rhizoids, 34. 

 Rhizomorphs, 106. 

 Rhodosporae, 364. 

 ' Ringworm, ' a disease of human 



beings caused by a fungus, 



208. 



Roentgen rays, 171. 

 Roestelia, 329. 

 Rubidium, action of, 119. 

 Rye-grass, symbiosis with a fungus, 



217. 



Saccharomyces Ludwigii, 270, 275. 

 Saccharomyceteae, 270. 

 Saccharomycetes pastor i anus, 275. 

 Salmon disease, 208. 

 Saprolegnia, 259. 

 Saprolegnia ferox ', 260. 

 Saprolegnieae, 258. 

 Saprophytes, food of, 133. 

 Schizophyllum, 359. 

 Schizosacckaromyces octosporus, 272. 

 Scleroderma, 377. 

 Sclerodermeae, 377. 

 Sclerotia, 103. 



Sclerotia, fats and oils in, 162. 

 Sclerotia, fiingi producing, 105. 

 Sclerotinia heteroica, heteroecism 



of, 12. 

 Seeds of flowering plants, effects of 



extreme cold on germination, 



122. 



Septum, 25. 

 Serial arrangement of fungi, 236. 



Sexual organs, suppression of, by 



excess of food, 129. 

 Sexual reproduction, 65. 

 Sexuality in Mucoraceae, 80. 

 Sirobasideae, 325. 

 Slugs dispersing spores, 114. 

 Smell attracts flies, who disperse 



spores, 115. 

 Smell attractive to rodents, who 



disperse spores, 118. 

 ' Smut,' fungicides for, 214. 

 ' Smut, ' infection of, through the 



flowers, 214. 



Sorosporium, spores of, 319. 

 Sorus, 333. 

 Sparassis, 346. 

 Sparassis, structure of, 349. 

 Spathularia, 304. 

 Specific heat of substances, influence 



of, 119. 



Spermatia, 327. 

 Spermatia, structure of, 329. 

 Spermogonia, structure of, 327. 

 Sphacelotheca, 319. 

 Sphacelotheca hydropiperis, 321. 

 Sphaeria, 280. 

 Sphaerieae, 289. 

 Sphaerobolus, 378. 

 Sphaerobolus, ejection of peridium, 



"3- 



Sphaeroideae, 390. 



Sphaeropsidiaceae, 387. 



Sphaerosoma, 281. 



Sphaerotheca Castagnei, sexual re- 

 production in, 83. 



Sporangia, formation of, dependent 

 on presence of potassium phos- 

 phate, 130. 



Spore formation in the Mucoraceae, 

 56. 



Spore-forms in Uredineae, 327. 



Spore, germinating, 25. 



Spores, colours of, in Agarics, 364. 



Spores, conditions affecting char- 

 acter of, 132. 



Spores, continuous, 45. 



Spores conveyed by seeds of plants, 



220. 



Spores, dispersion of, 114. 

 Spores dispersed by flies, 115. 

 Spores dispersed by slugs, 1 14. 

 Spores dispersed by toads, 115. 



