Holcus, 408. 
Homalia, 367. 
Homostegia, 135, 163, 292, 323. 
Hookeria, 215. 
Hordeum, 327. 
Hormodendron, 481. 
Houstonia, 83. 
Hyalodiscus, 500. 
Hydnochaete, 56. 
Hydnum, 82, 168, 541. 
Hydrangea, 485. 
Hydrocotyle, 155. 
Hydrothyria, 240. 
Hygrophorus, 141, 326, 340. 
Hymenoconidium, 226, 
Hymenula, 541. 
Hyocomium, 215. 
Hyophila, 215. 
Hypericum, 24. 
Hypnum, 58, 214, 215, 314, 326, 367, 427. 
Hypochaeris, 344. 
Hypocrea, 56, 458. 
Hypoderma, 463. 
Hypospila, 208, 323. 
Hypoxis, 164, 322. 
Hypoxylon, 342. 
Hypsela, 162, 387. 
Hyptis, 156, 163. 
Hysterium, 285. 
Hysterographium, 462. 
Icmadophila, 239. 
Tlex, 32, 284, 485, 568, 586. 
Ipomoea, 26, 273, 455, 489. 
Tris, 175, 220. 
Tsachne, 418. 
Isaria, 127. 
Isariopsis, 30, 163, 475. 
Isnardia, 177. 
Isoetes, 98, 163, 164, 351. 
Isolepis, 22. 
Isopterygium, 215. 
Ithyphallus, 72, 147. 
 Ivesia, 4. 
Ixophorus, 327. 
Jamesia, 16, 477. 
Jonapsis, 238. 
Jouvea, 325. 
Juglans, 279, 465. 
uncus, 57, 466 
‘nag Lig 513. 
Juniperus, 88, 180. 
Jussiaea, 29, 289. 
Kalmia, 64, 465, 586. 
Kallstroemia, 206, 328. 
_Kantia, 204. 
Karschia, 469. 
Kneiffia, 205, 370. 
Kneiffiella, 206,370. 
Koellia, 50. 
Kosteletzkya, 154. 
Kuhnia, 28. 
Kumlienia, 455. 
Lachnella, 467. 
Lachnobolus, 70. 
Laelia, 484. 
Laestadia, 129, 323. 
Laminaria, 542. 
Lamproderma, 69. 
Lappula, 294. 
Laschia, 56. 
Lasiobelonium, 136, 323. 
Lathyrus, 257. 
Laurentia, 162, 386. 
Lecanactis, 238. 
Lecanora, 239, 539. 
Lechea, 86, 162, 567. 
Lecidea, 79, 238, 447, 539. 
Lecidocollema, 240. , 
Ledum, 586. 
Leibergia, 274. 
Lejeunia, 322. 
Lemna, 59. 
Lenzites, 340. 
Leontodon, 480, 
Leonotis, 156, 333. 
Lepachys, 410. 
Lepidium, 362, 450, 542. 
Lepidocollema, 240. 
Lepidoderma, 67. 
Lepidopilum, 215. 
Lepiota, 82, 139, 168, 326, 
Leprocollema, 240. 
Leptamnium, 409. 
Leptaulus, 80. 
Leptodendriscum, 240, 
Leptogidium, 240. 
eptogium, 240. 
Leptoglossum, 82, 168, 
Leptopoda, 212. 
Leptosphaeria, 131, 323, 461. 
Leptothyrium, 286, 466. 
Leptosyne, 448. 
Leptotrichum, 215, 367. 
Leskea, 132. 
Lespedeza, 461. 
Lesquerella, 247. 
Leucobryum, 215. 
Leucoloma, 215. 
Leucomium, 215. 
Leucothoé, 569. 
Lewisia, 178. 
Licea, 69. 
Lichenosphaeria, 240, 
Lichina, 240. 
Ligusticum, 343. 
