Polystigma, 191, 200, 235, 
236, 239, 240, 241, 258, 
259, 285. 
— fulvum, 199, 2135. 
—, gelatinous membranes, 9. 
—, lipoxeny, 388, 389. 
—, parasitism, 386. 
— rubrum, 199, 215, 224, 
226, 240. 
—, conditions of germination, 
350. 
— —, parasitism, 362. 
— stellare, mycelial strands, 
22, 23. 
—, stroma, 43. 
—, structure of sporophore, 
57. 
Pore, 191. 
Pores in Polyporee (Poly- 
porei), 288. 
Poronia, 244. 
Precursors of ascocarps in 
Ascomycetes, 244. 
Predisposition for parasites, 
359. 
Primordium of the myce- 
lium, 110, 178. 
— of sporophore, 199, 215, 
218. 
Procarpium (procarp), 120. 
Promycelium, 111, 177. 
Prosporangium, 163. 
Protagon-mixtures, 300. 
Prothallium, 121. 
Protococcus in Lichen- 
thallus, 397*. 
Protomyces, 132, 171. 
—, capacity of germination, 
349. 
—, germination, 109. 
—, ejection of spores, 85. 
—, formation of spores, 61. 
— macrosporus, 171. 
— —,cellulose-membrane, 8. 
——, conditions of germina- 
tion, 351. . 
— —, development of spores, 
172. 
— —,ejection of spores, 89, 
91. 
— —, parasitism, 363, 365, 
386, 389. 
— —, resting spores, 172*. 
— —, structure ofspores,106. 
— Menyanthidis, 166. 
— pachydermus, 172. 
—, resting state of spores, 
345. . 
Protomyxa aurantiaca, 446. 
Protoplasm, 6. 
— in Bacteria, 455. 
— in Mycetozoa, 422, 423, 
425, 426, 
Protothallus, 405. 
INDEX. 
Protozoa, 475. 
Psalliota, 291, 297. 
Pseudo-lichens, 416. 
Pseudo-parenchyma,3,5,405. 
Pseudo-peridia, 275. 
Pseudopodia, 423, 426. 
Pseudospora, 447. 
Psora, structure of thallus, 
404. 
Psoroma, Algae of thallus, 
409. 
— gypsaceum, incrustation, 
408. 
— lentigerum, secretion of 
calcium, 11. 
— —, calcium oxalate, 408. 
— sphinctrinum, Algae of 
thallus, 404. 
—, structure of thallus, 404. 
Pterula, 29. 
Ptychogaster albus, 335. 
Puccinia, 279, 282. 
— Aegopodii, 285. 
— Alliorum, 277. 
— Anemones, 277. 
— —, parasitism, 393. 
— Asari, 285. 
— Berberidis, 279, 283, 284. 
— Caricis, parasitism, 387. 
— coronata, parasitism, 387. 
— —, structure of spores, 
100, 
—, detaching of spores, 68, 
—, Falcariae, 279. 
— —, parasitism, 387. 
—, formation of spores, 62*. 
— fusca, 277, 281. 
— Galiorum, 277. 
— graminis, development of 
aecidia, 275*, 276*. 
— —, capacity of germina- 
tion, 345, 348. 
— —, development of spores, 
62*, 
— —, germination, 
280%, 
— —, germ-pores, 100. 
— —, parasitism, 387, 389. 
— —, rest of spores, 345. 
— —, spermogonia, 276*. 
— —, structure of spores, 
101. 
— Malvacearum, 284. 
— Moliniae, parasitism, 387. 
— Pimpinellae, parasitism, 
387. 
— Pruni, 285. 
— reticulata, structure of 
spores, 100. 
— Rubigo vera, 283. 
— —, germination, 280*. 
— —, parasitism, 387, 389. 
—, spores, 68, 98. 
—, structure of spores, 100. 
110*, 
519 
Puccinia suaveolens, 277. 
— —, parasitism, 359. 
— Tragopogonis, parasitism, 
387, 391. 
— Violarum, parasitism, 387. 
Putrefactive processes in- 
cited by Bacteria, 481. 
Pycnidia, 49, 225, 239, 246. 
—, large-pored, 248. 
—, small-pored, 248. 
Pycnis sclerotivora, 247. 
Pycnochytrium, 167. 
Pycnogonidia, 225, 239, 246. 
Pycnospores, 225, 239, 246. 
Pyrenocarp, 187. 
Pyrenomycetes, 
200. 
— as Lichen-fungi, 396. 
—, development of spores, 
78. 
—, ejection of spores, 91, 97. 
—, hyphal weft, 4. 
—, number of spores, 79. 
—, stromata, 50. 
—, structure of ascus, 96. 
Pyrenula, 192, 223. 
— minuta, 246. 
—nitida, structure of 
thallus, 411. 
— —, thallus, 402. 
— olivacea, 246. 
Pyronema, 190, 198, 224, 
231, 234, 237, 239. 
— confluens, 208. 
— —, development of sporo- 
phore, 209*. 
Pythium, 234. 
— de Baryanum, 135, 137. 
— —, parasitism, 382. 
—, development, 135, 137. 
—, discharge of spores, 82. 
— endophytum, 139. 
— gracile, fertilisation, 133*. 
— intermedium, 137. 
— —, parasitism, 382. 
— megalacanthum, parasit- 
ism, 382. 
—, mode of life, 132. 
—, parasitism, 359, 363, 382, 
389, 392. 
— proliferum, 135. 
— —, rest of spores, 345. 
—, rest of spores, 345. 
—, swarm-spores, 107. 
— vexans, 135, 232. 
186, 187, 
Quaternaria, 218. 
—, discharge of spores, 97. 
Queletia, 318. 
Racodium cellare, 22. 
—rupestre, structure of 
thallus, 411. 
