520 
Ramalina, soredia, 415. 
Reaction of host on parasite, 
366. 
Receptaculum, 17, 48, 188, 
312. 
Recurrent fever, 486, 488. 
Reduction in the course of 
development, 125. 
Resin in Boletus, 15. 
Resin-excretions, 10. 
Resin-flux, 384. 
Resistance in spores, 343. 
— in Bacteria, 476. 
Resting gonidia, 144. 
— mycelia, 230, 245. 
— sporangia, 144. 
— spores, 345. 
— — in Bacteria, 460. 
— states, transitory in My- 
cetozoa, 427. 
Reticularia, 431, 440. 
— umbrina, 439. 
Rheotropism in plasmodia, 
449. 
Rhipidium, 144. 
Rhipidonema, structure of 
thallus, 414. 
Rhizidieae (Rhizidiei), 162, 
169, 170. 
Rhizidium, 164, 165. 
Rhizines, 402. 
Rhizocarpon, structure of 
thallus, 405. 
Rhizoids, 45, 59, 402. 
Rhizomorpha fragilis, 28. 
—,, parasitism, 383, 384. 
— subcorticalis, 28. 
— subterranea, 28. 
Rhizophydium, 164. 
Rhizopoda, 444, 475. 
Rhizopogon, 308. 
—, formation of spores, 63. 
Rhizopus, 152. 
— nigricans, 152, 154. 
— —, conjugation, 148*. 
—, discharge of spores, 83. 
Rhytisma, 186, 240. 
—acerinum, ejection of 
spores, 87, 92. 
— Andromedae, 224. 
— —, germination, 111*. 
— —, parasitism, 358, 393. 
— —, structure ofspores,102. 
—, asci, 76. 
—, conditions of germina- 
tion, 350, 
—, lipoxeny, 388. 
—, parasitism, 389. 
—, stroma, 43. 
— —, structure, 58. 
—, structure of sporophore, 
57. 
Rind of compound sporo- 
phore, 58. 
INDEX. 
Rind (rind-layer) of Lichen- 
thallus, 403. 
Roccella, Algae of thallus, 
409. 
— fusiformis, incrustations, 
408. 
— —, calcium oxalate, 409. 
— —, structure of thallus, 
406, 
— Montagnei, 246. 
—, soredia, 415. 
—, structure of thallus, 404, 
406. 
Rod-like forms in Bacteria, 
458. 
—, gonidia, 331. 
Roesleria hypogaea, dis- 
charge of spores, 96. 
Roestalia, 388. 
Root-hairs, 45, 54, 59. 
Rosellinia Aquila, structure 
of ascus, 96. 
— quercina, 215. 
— —, mycelium, 42. 
Rotting in orchard fruit, 
379. 
Rozella, 169, 444. 
—, parasitism, 368, 395. 
— septigena, parasitism, 395. 
Russula, 297, 304. 
— adusta, 298. 
—, calcium oxalate, 11. 
— foetens, var. lactiflua, 300. 
— integra, 298. 
— —, structure of sporo- 
phore, 58. 
— olivacea, 298. 
—, pseudo-parenchyma, 3. 
Rutstroemia (see Sclero- 
tinia), 41. 
—., ejection of spores, 86. 
Ryparobius, 208. 
Saccharomyces, 
267, 270. 
— albicans, 267. 
— —, parasitism, 377. 
— apiculatus, 271, 272. 
— —, mode of life, 357. 
—, cell-nucleus, 6. 
— Cerevisiae, 267. 
— „resistance to effects of 
heat, 347. 
— —, sprouting, 4*, 267*. 
— —,swelling of membrane, 
10, 
—, conditions of vegetation, 
353. 
— ellipsoideus, 267. 
— —, formation of spores, 
268*. 
—, germination, 114. 
— glutinis, 272. 
— mesentericus, 358. 
132, 263, 
Saccharomyces, Mycoder- 
ma, 267, 268, 269, 358, 
377. 
— Pastorianus, 267. 
—, pleomorphism, 
270. 
—,secretion of ferments, 
355. 
—, thallus, 5. 
Saccobolus, 
spores, 92. 
—, structure of spores, 102. 
Sagedia aenea, 246, 
— callopisma, 246. 
— carpinea, 246. 
— netrospora, 246. 
— Thuretii, 246. 
— Zizyphi, 246. 
Salts of iron in Lichen-thal- 
lus, 408. 
Sap-cavities (vacuoles), 6. 
Saprolegnia, 143. 
—, discharge of spores, 82. 
—, formation of spores, 74. 
— hypogyna, 141, 142. 
— monoica, 141. 
—, parasitism, 359, 393. 
—, simple sporophores, 46. 
—, sporangia, 46. 
—, swarm-spores, 107, 108. 
Saprolegnieae (Saprolegniei), 
141, 232. 
—, capacity of germination, 
343. 
—, cell-nucleus, 6, 
—, cellulose-membrane, 8. 
—, discharge of spores, 82. 
—, parasitism, 375, 395. 
—, resistance of spores, 345. 
—, rest of spores, 344. 
—, simple sporophores, 46. 
Saprophytes, 356, 357, 480. 
—, facultative, 356. 
—, obligate, 356. 
Sarcina, 473. 
— ventriculi, 459. 
Sarcinula, 229. 
Sarcogyna, numberof spores, 
79. 
Scales on compound sporo- 
phores, 59. 
Schizomycetes, 454. 
Schizonella, 176. 
Schizopbyllum, 302. 
Schizophytes, 474, 476. 
Schizosiphon in Lichen- 
thallus, 398. 
Sclerangium, 315. 
Scleroderma, 309, 311, 313, 
315. 
—, formation of spores, 63. 
—, mycelial strands, 23. 
Sclerosis of membranes, 9. 
Sclerotia, 18, 30, 
alleged, 
ejection of 
