Uromyces appendiculatus, 
parasitism, 387. 
— Belienis, 279. 
— Cestri, 279. 
— Dactylidis,parasitism, 387. 
— Phaseolorum, 281. 
— — parasitism, 387, 389. 
— Pisi, parasitism, 368, 388, 
391. 
— Scrophulariae, 279. 
— scutellatus,parasitism, 368. 
—, spores, 98. 
— —, detaching, 68. 
— —, formation, 62. 
— tuberculatus, parasitism, 
358. 
— Viciae Fabae, 277. 
Usnea barbata, Algae of 
thallus, 398*. 
— —, chemical properties, 
407. 
— —, Incrustation, 408. 
— —, soredia, 415. 
— —, structure of thallus, 
402*. 
— —, thallus, 187*. 
—., structure of thallus, 404, 
405, 406. 
Ustilagineae (Ustilaginei), 
120, 132, 172, 176, 179. 
—, capacity of germination, 
344. 
—, conditions of germina- 
tion, 350. 
—, haustoria, 19. 
—, parasitism, 359, 362, 364, 
367, 385, 390, 391, 393. 
—, spores, rest, 345. 
— —, structure, 100. 
Ustilago, 174. 
— antherarum, 179. 
— Carbo, 177, 179, 180, 181. 
— —, capacity of germina- 
tion, 344. 
— —, conditions of germina- 
tion, 349. _ 
— —, germination, 178*. 
— —, parasitism, 367. 
— —, resistance of spores, 
346. 
— Cardui, 177. 
— Crameri, capacity of ger- 
mination, 344. 
— destruens, 177, 179, 180. 
— —, capacity of germina- 
tion, 344. 
— —, conditions of germina- 
tion, 349. 
— —, resistance of spores, 
346. . 
— flosculorum, 177. 
— hypodytes, 172, 175. 
INDEX. 
Ustilago flosculorum, parasi- 
tism, 391. 
— Ischaemi, 175. 
— —, formation ofspores,68. 
— Kolaczeckii, capacity of 
germination, 344. 
— Kühniana, 177, 179. 
— longissima, 173, 179, 183. 
— —, germination, 178*. 
— Maidis, 179, 181. 
— olivacea, 173. 
— Rabenhorstiana, capacity 
of germination, 344. 
— receptaculorum, 
ture of spores, 102. 
— Tragopogonis, 172, 182. 
— —,, development of spores, 
175*. 
— —, germination, 178*. 
— —, parasitism, 391. 
— Tulasnei, capacity of ger- 
mination, 344. 
— utriculosa, 177. 
— Vaillantii, 177, 179. 
Ustulina, 186, 218, 244, 248, 
260. 
Uterus, 308. 
struc- 
Vacuoles (sap-cavities), 6, 
424. 
Valsa ambiens, 258. 
— —, number of spores, 79. 
— nivea, spermogonia, 240*. 
— —, number of spores, 79. 
— salicina, number of spores, 
79+ 
—, structure of spores, 102. 
Valseae (Valsei), 191, 192. 
—, discharge of spores, 97. 
Vampyrella, 447, 453. 
— pendula, 447. 
— Spirogyrae, 447. 
— vorax, 447. 
Variolaria, 416. 
Vegetation, general condi- 
tions, 352. 
Veines aériféres, 195. 
— aquiferes, 195. 
Velum, 289, 291. 
— partiale, 290. 
— universale (volva), 290. 
Venae externae, 195. 
— internae, 195. 
— lymphaticae, 195. 
Vermicularia, 252. 
— minor, fatty matters, 7. 
— —, sclerotium, 41. 
Verpa, 189. 
Verrucaria, 192, 222.- 
—, Algae of thallus, 409. 
— carpinea, 246. 
— Gibelliana, 246. 
THE END. 
525 
Verrucarieae (Verrucariei), 
242. 
Verticillium, 245, 249, 252. 
Vibrio, 458, 459, 473. 
Vibriones, 458. 
Volva, 290. 
Volvaria, 292, 295, 297. 
Warts on compound sporo- 
phores, 59. 
Water-content, 6. 
— -supply, as a condition of 
germination, 375. 
Whorl of sporidia (Kranz- 
körper), 177. 
Wine-yeast, 269. 
Witches’ brooms, 266, 368, 
390. 
Withdrawal of water, influ- 
ence on germination, 346. 
Woronina, 161, 169, 444. 
—, parasitism, 395. 
Woronin’s hypha, 199, 218. 
Xylaria, 186, 192, 199, 236, 
244, 260. 
—, branching, 51. 
— bulbosa, sclerotium, 41. 
—, compound sporophores, 
development, 56. 
— —, growth, 50, 51. 
— pedunculata, structure of 
spores, 102. 
— —, chemical behaviour of 
spore-membrane, 105. 
— polymorpha, development 
of sporophore, 216*. 
— —, development of spores, 
78. 
Xylarieae(Xylariei),186,236, 
248, 260. 
—, discharge of spores, 97. 
Xyloma, 43, 190. 
Xylostroma, 22. 
Yeast-fungi, 4*, 5, 267, 270, 
358. 
Yeast-fungus of alcoholic 
fermentation, 267. 
Yeast-mucilage, 10. 
Zeora, 223. 
Zoogloea, 457, 459. 
Zoospores, 107. 
Zygochytrium, 146, 151, 169. 
— aurantiacum, 156. 
Zygomycetes, 132, 145. 
—, rest of spores, 345. 
—, thallus, 1. 
Zygospores, 129, 145. 
—, formation, 147. 
—, resting state, 344, 345. 
