Mystrosporium, 229, 252. 
Myxamoebae, 423. 
Myxastrum radians, 447. 
Myxocyclus, 252. 
— confluens, structure of 
spores, 102, 
Myxogasteres, 421. 
Myxomycetes, 421, 475. 
—, affinities, 442. 
Myzocytium globosum, 139. 
Naemaspora, 252. 
Naetrocymbe, 416. 
Neck in perithecia, 191. 
Nectria, 200, 215, 221, 239, 
245. 
— cinnabarina, 244, 246. 
— —, parasitism, 362, 383. 
— cucurbitula, parasitism, 
383.. 
— development of spores, 
78. A 
—, discharge of spores, 97. 
— ditissima, 228. 
— —, parasitism, 383. 
—, germination, 114, 115. 
— inaurata, 114, 115. 
— Lamyi, germination, 115. 
— Solani, 246, 
— —, abscision of gonidia, 
71. 
Nephroma arcticum,Algae of 
thallus, 409. 
—, structure of thallus, 406. 
Nephromium, Algae of 
thallus, 409. 
New formation of members 
caused by Fungi, 368. 
Nidularia, 311, 320. 
Nidularieae (Nidulariei), 308, 
312, 319, 332. 
—, gelatinous membranes, 
13. 
—, mycelial strands, 22, 23. 
Nosema Bombycis, 488. 
Nostoc in Lichen-thallus, 
397%, 398. 
Nostocaceae, 475. 
— in Lichen-thallus, 398. 
Nucleariae, 447. 
Nuclei in spores, 106. 
Nuclein, 6. 
Nucleus in perithecia, 193. 
Nummularia, 218. 
—, discharge of spores, 97. 
Nutritive adaptation, 356. 
Nyctalis, 297, 334, 341. 
— asterophora, 335, 341. 
——, compound sporo- 
phores, 335*. 
— mycrophylla, 336. 
— parasitica, 336. 
— —, development of sporo- 
phore, 55. 
INDEX. 
Obelidium, 164. 
Obryzum, structure of 
thallus, 412. 
Ochrolechia pallescens, cal- 
cium oxalate, 409. 
— —, germination, 112. 
— —, structure of thallus, 
405. 
— tartarea, calcium oxalate, 
408. 
Octaviania, 308. 
— asterosperma, compound 
sporophores, 308*, 
-— —, hymenium, 309*. 
— carnea, 309, 313. 
— —, formation of spores, 
63%. 
—, structure of spores, 100. 
Oedema, malignant, 486. 
Oidium, 238, 252. 
— albicans, parasitism, 377. 
— aurantiacum, resistance 
of spores, 347. 
— erysiphoides, 252. 
— fructigenum, 252. 
— lactis, 252, 253, 377. 
— —, cell-nucleus, 6. 
=e formation of sporesy 
7. 
— leucoconium, 252. 
— Tuckeri, 225. 
— —, parasitism, 387. 
Oil-drops in spores, 106. 
Olpidieae (Olpidiei), 166, 167, 
168, 169, 170. 
Olpidiopsis, 444. 
— fusiformis, 166. 
—, parasitism, 393. 
— Saprolegniae, 161, 166. 
Omphalaria, structure of 
thallus, 413. 
Omphalarieae (Omphalariei), 
structure of thallus, 413. 
Omphalia, 297. 
Onygena, 193. 
— corvina, 196. 
— —, conditions of germina- 
tion, 351. 
—, discharge of spores, 97. 
— equina, 197. 
— faginea, 335. 
Oogonia, 120, 133. 
Oosphere, 120, 133. 
Oospores, 129, 232. 
—, capacity of germination, 
343. 
—, resting state, 344, 345. 
Opegrapha filicina, 397. 
— —, structure of thallus, 
4il. 
— plocina, structure of 
thallus, 411. 
— saxatilis, structure of 
thallus, 411. 
tle 
515 
Opegrapha varia, 246. 
— —, structure of thallus, 
4il. 
— vulgata, 246. 
Ophidomonas, 472. 
Organs, functionless in As- 
comycetes, 256. 
— of attachment, 45. 
— of propagation, 124. 
Ostiole of perithecium, ıgr. 
Otomycosis aspergillina, 369. 
Outer envelope of ascocarp, 
188, 
Oxygen as a condition of 
germination, 349. 
Ozonium, 29. 
Palmellaceae in Lichen- 
thallus, 397. 
Palmellae-forms in Bacteria, 
459. 
Panhistophyton, 488. 
Pannaria, 223. 
—, structure of thallus, 410. 
Panus stypticus, structure of 
sporophore, 58. 
— —, gelatinous membrane, 
13. 
Papulospora, 2. 
Paraphyses, 48, 76, 187, 192, 
286, 302. 
— envelope, 275. 
Parasites, 356, 358, 48r. 
—, autoecious, 387. 
—, autoxenous, 387. 
—, facultative, 356, 369. 
—, inhabiting animals, 369. 
—, inhabiting plants, 379. 
—, metaxenous, 387. 
—, metoecious, 387. 
—, obligate, 356. 
— which change their host, 
387. : 
Parmelia, Algae of thallus, 
409. 
— pulverulenta, 222. 
—, soredia, 415. 
— stellaris, 222. 
—, structure of thallus, 406. 
Paulia, discharge of spo es, 
97. 
—, structure of thallus, 413. 
Paxillus, 297. 
Pébrine, 488. 
Peccania, structure of 
thallus, 413. 
Pellicula (cutis), 58. 
Peltigera, 240. 
—, Algae of thallus, 409. 
— aphthosa, structure of 
thallus, 406. 
— canina, structure of 
thallus, 406. 
—, incrustations, 408. 
