466 



PLANT DISEASES 



Spirilla, 30. 



Sporocarp, 6. 



Spraying apparatus, 52. 



— — methods of, 51. 



Squirt berry, 271. 



Stereum frustulosum, 172, 397. 



hirsulum, 174, 397. 



Sterilising soil, 44 

 Stigmatea mespili, 278. 

 Stilbum flavidum, 445. 



nanum, 326, 441, 



Stinking smut of wheat, 218. 

 Sulphur, 38. 



flowers of, 94. 



Summer fruit, 8. 



TAPHRINA AUREA, 91, 360. 



buUata, go, 359. 



johansonii, 92, 359. 



sadebeckii, 91, 359. 



ulmi. 92, 359. 



Thread blight of lea plant, 326, 

 Tilletia caries, 218. 



decipiens, 220, 404. 



foetens, 220. 



levis, 220, 403. 



secalis, 220. 



tritici, 218, 403. 



Tinder fungus, 1S5. 

 Trametes pini, 179, 394. 



radiciperda, 182. 



suaveoleus, 180, 395. 



Trap-crop, 26. 



Trichosphaeria parasitica, 114. 

 sacchari, 103, 365. 



Uncinula spiralis, 92, 360. 

 Uredo cannae, 368, 423. 



Uredo vialae, 268. 



vitis, 268, 423. 



Urocystis cepulae, 223, 404. 



colchici, 227, 404. 



occulta, 221, 404. 



Uromyces appendiculaius, 230, 406. 



betae, 228, 407, 



colchici, 226, 406. 



fabae, 228, 407. 



Urophlyctis leproides, 225. 

 Ustilago avenae, 210, 401. 



cruenta, 216, 402. 



emodensis, 216, 402, 



esctilenta, 217, 403. 



hordei, 214, 401. 



mays zeae, 213, 402. 



nuda, 215, 401. 



reiliana, 216, 402. 



sacchari, 217, 403. 



sorghi, 216, 402. 



treubii, 216. 



tritici, 213, 401. 



var. folicola, 213, 401. 



Vermicularia circinans, 273, 



425- 

 Verticillmm, 134. 



White root-rot, 116. 



rust of crucifers, 59. 



Winter fruit, 10. 

 Witches' brooms, 89. 

 Wound -parasites, 15. 



Xyleborus perforans, 104. 



Zoospores, 64. 



