INDEX OF HOSTS 



597 



Hawkweed, 118. 

 Hawthorn, 258, 317. 



cluster-cups, 316. 



leaf scorch, 456. 

 Hay, an agent in dispersing fungi, 



19. 

 Hazel, 72, 183, 250. 



leaf mildew, 154. 



Heart-wood rot, 378. 

 Helianthus annus, 308. 

 Helichrysum, 350. 

 Hellebore, 413. 



leaf blotch, 415. 



Helleborus niger, 415. 

 Hemerocallis, 499. 

 Hemp, 266, 412. 



Msal, disease, 444. 



Hepatica, 122. 



Heterosporium syringae, 568. 

 Hevea, 393. 



brasiliensis, 394. 



root rot of, 376. 



Hibiscus, 413. 

 Holcus, 493. 



lanatus, 247. 



Hollyhock, 310, 466. 



anthracnose, 444. 



rust, 310. 



introduction of into Europe, 



17- 



Homalocenchrus, 347. 

 Honeysuckle, 157, 



girdling trees, 63. 



Hop dodder, 75. 



mildew, 152. 



Hornbeam, 72, 14?, 183, 387. 

 Horse-chestnut leaf spot, 425. 

 Horse-radish, 433. 



black rot of, 512. 



Houseleek, 321. 



rust, 321. 



Hoya, 441. 

 Hyacinth, 264. 



bulb, 544. 



Hyacinthus, 253. 



IMPATIENS OLIVERI, 549. 

 Indian corn mildew, 567. 

 Ipomaea, 132. 

 batatas, 188. 

 Iris, 309, 336, 499. 



bulb-scab, 505. 



reticulata, 505. 



rot, 519. 



Isopyrum, 122. 

 Italian rye-grass, 496. 

 Ivy canker, 520. 



JAPAN LILY DISEASE, 133. 

 Juncus, 274. 



Junglans regia, 204, 432. 

 Juniper leaf spot, 288. 

 Juniperus, 374. 



communis, 222, 263, 316, 317, 



318. 



nanus, 222, 318. 



oxycedrus, 317. 



phoenica, 317. 



virginianus, 317. 



KALE, 510. 



LABURNUM, 37, 117, 441. 

 Larch, 327, 373. 



branch fungus, 480. 



canker, 280. 



defoliation of, 462. 



leaf rust, 327. 



Larix, 374. 



europaea, 254, 281, 284. 



leptolepis, 281. 

 sibirica, 285. 



Lathraea squamaria, 72. 

 Lathyrus pratensis, 296. 

 silvestris, 296. 



tuberosus, 296. 

 Laurus canariensis, 402. 



nobilis, 402. 



Lavatera arborea, 38. 



Lawn grasses attacked by fungus, 92. 

 Leaf blight, 392. 



scald, 452. 



Ledum palustre, 270. 

 Leguminosae, 161. 

 Lemna minor, 90. 

 Lemon, 166. 

 Lemon foot rot, 493. 



scab, 474. 



Lettuce, 118. 



stem canker, 263. 

 Ligustrum, 37. 



Lilac, bacterial disease of, 512. 



leaf blotch, 568. 



spot, 413. 



twig and bud disease of, 561. 



Lilium auratum, 133. 



candidum, 265. 



speciosum, 133. 



Lily bulb, 544. 

 Japanese, 133. 

 Lima bean, 130. 

 Lime, 183. 



leaf spot, 437. 



tree bark disease, 481. 



Ling, 73. 



Linum catharticum, 326. 



2 P 2 



