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. 



, 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, 3i9> 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, i oo. 

 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. 



, formation of spores, 



67. 



leucoconium, 252. 



- Tuckeri, 225. 



, parasitism, 387. 



Oil-drops in spores, 106. 

 Olpidieae (Olpidiei), 166, 167, 



1 68, 169, 170. 

 Olpidiopsis, 444. 



fusiformis, 166. 

 , parasitism, 393. 



Saprolegniae, 16 1, 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, 



411. 



plocina, structure of 

 thallus, 411. 



saxatilis, structure of 

 thallus, 411. 



L 1 2 



515 



Opegrapha varia, 246. 



, structure of thallus, 

 411. 



vulgata, 246. 

 Ophidomonas, 472. 

 Organs, functionless in As- 



comycetes, 256. 



of attachment, 45. 



of propagation, 124. 

 Ostiole of perithecium, 191. 

 Otomycosis aspergillina, 369. 

 Outer envelope of ascocarp, 



1 88. 

 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, 481. 



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. 



pulverulent a, 222. 

 , soredia, 415. 



stellaris, 222. 



, structure of thallus, 406. 

 Paulia, discharge of spo es, 



97- 



, structure of thallus, 413. 

 Paxillus, 297. 

 Pgbrine, 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. 



