5i6 



INDEX. 



Peltigera malacca, structure 



of thallus, 406. 

  — , structure of thallus, 40^, 



406. 

 Penicillium, 193, 198, 199, 



226, 232, 234, 239, 245, 



251, 254. 

 — , abscision of gonidia, 66, 



70*. 



— aureum, 206. 



— , capacity of germination, 



348. 

 — , conditions of germination, 



35°- 

 — , conditions of vegetation, 



353, 354- 

 — , discharge of spores, 81, 



97- 

 — , effect on substratum, 



358. 

 — , fatty matters, 7. 

 — , formation of spores, 62. 

 — , germination, m. 



— glaucum, 204, 226. 

 , abscision of gonidia, 



70*. 



, capacity of germina- 

 tion, 344. 



, cell-nucleus, 6. 



, conditions of germina- 

 tion, 349. 



, mycelial membranes, 



21. 



, parasitism, 370, 380. 



, resistance of spores, 



347. 

 — , gonidiophores, 48. 

 — , sclerotioid compound 



sporophores, 43. 

 — , secretion of ferment, 



355- 

 — , simple sporophores, 46. 

 — , thallus, 1. 

 Perichaena, 435. 



— liceoides, 423, 427, 428, 



435, 441, 448. 

 Pcriconia, 252. 

 — , formation of spores, 66. 

 Peridermium elatinum, 277, 



282. 

 , parasitism, 368, 388, 



390. 



— Pini, parasitism, 388. 

 , structure of spores, 



100. 

 Peridiola, 31 1, 320. 

 Peridium, 48, 193, 275, 



308. 

 — , inner, 311. 

 — , outer, 311. 

 Periphyses, 192. 

 Periplasm, 133. 

 Perithecia, 76, 187, 190, 239, 



401. 



Peronospora, 138, 232. 

 — , abscision of spores, 72. 



— Alsinearum, fertilisation, 

 133*. 



— arborescens, fertilisation, 

 133* 



- Arenariae, parasitism, 39 1. 



— calotheca, haustoria, 20*. 



— densa, germination, 1 1 2. 



, haustoria, 20. 



, parasitism, 393. 



— , development, 134. 



— , discharge of spores, 82. 



— , membrane, 12. 



— nivea, haustoria, 20. 

 , parasitism, 363, 393. 



— parasitica, haustoria, 20. 



— — , parasitism, 359, 362. 

 — , parasitism, 358, 386, 391. 



— pygmaea, germination, 

 112. 



, haustoria, 20. 



, parasitism, 364. 



— Radii, parasitism, 358, 

 364, 390, 391. 



— , simple sporophores, 46, 



47- 

 — , thallus, 1. 



— Umbelliferarum, parasi- 

 tism, 363, 389. 



— Valerianellae, 135. 



— violacea, parasitism, 368, 

 390, 391. 



— viticola, parasitism, 393. 

 Peronosporcae (Peronospo- 



rei), 132, 183, 232, 233, 



236. 

 — , absence of calcium, 11. 

 — , capacity of germination, 



343, 344, 349- 

 — , cell-nucleus, 6. 



— , cellulose-membrane, 8. 

 — , conditions of germina- 

 tion, 350. 



— discharge of spores, 82. 

 — , formation of spores, 74, 



75- 

 — , germination, 1 13. 

 — , haustoria, 20*. 

 — , mycelium, 20*. 

 — , parasitism, 359, 362, 386, 



393- 

 — , pleuroblastic, 20. 

 — , resistance of spores, 345. 

 — , resting state of spores, 



344- 



— , swarm-spores, 109. 



— , thallus, 1. 



Pcrtusaria communis, ger- 

 mination, 1 14*. 



— dc Baryana, germination, 

 1 1 2*. 



— fallax, calcium oxalate, 

 409. 



Pertusaria lejoplaca, develop- 

 ment of spores, 78. 



, germination, 114*. 



— , number of spores, 79. 



— , soredia, 415. 



— , structure of thallus, 405. 



Peziza (see also Sclerotiniaj, 

 189. 



— abietina, 86. 



, ejection of spores, 86. 



, structure of spores, 



106. 



— Acetabulum, develop- 

 ment of spores, 106. 



, ejection of spores, 85. 



— — , puffing of spores, 89, 

 92. 



, structure of spores, 77. 



— aeruginosa,colouring mat- 

 ter, 8. 



— Aglaospora, 243. 



— arduennensis, 243. 



— aurantia, fatty matters, 



1 • 



, structure of spores, 



100. 



— baccarum, sclerotium, 30, 

 41. 



— benesuada, doubtful sper- 

 matia, 243*. 



— bolaris, 243. 



■, germination, 115. 



— calycina, development of 

 spores, 78. 



— Candolleana, sclerotium, 

 30, 31, 32. 



— ciborioides, sclerotium, 

 30, 41. 



— confluens, 208. 



, developmentof spores, 



76, 77*- 

 , ejection of spores, 86. 



— convexula, ejection of 

 spores, 85, 86. 



, structure of spores, 



102. 



— cupularis, ejection of 

 spores, 85, 86. 



— Curreyana, desertion of 

 host, 388. 



— , sclerotia, 33, 37, 4 1 - 



— Cylichnium, 243. 

 , germination, 115. 



— , development of asco- 

 spores, 76. 



— Duriaei, sclerotia, 37. 



— Durieuana, 243. 



, desertion of host, 3S8. 



, sclerotia, 41. 



— , ejection of spores, 89. 



— Fuckeliana, 245, 254. 

 , abscision of spores, 



63, 72. 

 , cell-nucleus, 6. 



