Lepidodendron, 470. 
Lepigonum, 325, 405. 
Lepiota, 198, 199, 286. 
Lepra, 198. 
Leptochloa, 175. 
Leptogium, 197, 246, 495- 
Leptoglossum, 210, 386. 
Leptonia, 201, 286. 
Leptorchis, 405. 
Leptotherium, 82. 
Lesquerella, 475. 
Leucobryum, 442. 
Lencodictyon, sor. 
Leucothoé, 146, 231, 232- 
Lewisia, 111. 
Liatris, 143, 152, 461. 
Ligusticum, 363. 
Lilium, 170. 
Limodorum, 145, 158. 
Limonium, 405, 406. 
Limosella, 519. 
Linanthus, 186, 375. 
Linum, 393- 
Liparis, 405. : 
Liquidambar, 467. 
Liriodendron, 54, 285, 376, 383, 415. 
Liriodendropsis, 415. 
Liriophyllum, 54. 
Lissocarpa, 521. 
Lithophragma, 338. 
Lithothamnion, 285. 
Litobrochia, gt. 
Litsia, 440. 
Lepargyrea, 324. 
Lobelia, 383, 484. 
Lophopappus, 55- 
Lophotocarpus, 287. 
Lotus, 469. 
Ludwigia, 392, 393- 
Lupinus, 108, 186, 325- 
Lunaria, 310. 
pees 4°. . 
ycogala, 333, 334- 
Lycoperdon, 107, 209, 286, 477- 
Lycopersicum, 47. 
Lygodesmia, 143- | 
Lygodium, 170, 481. 
Lyngbya, 285, 428, 429- 
Macrocarpaea, 483. 
Macromitrium, 442. 
Macrosporium, 493. 
9 
Magnolia, 146, 176, 278, 286, 439, 449, 474- 
Mallinoa, 136. 
Mallotium, 197, 496. 
Malpigia, 229. 
Malvaviscus, 446. 
Mammillaria, 116. 
Manihot, 136. 
Marasmius, 487. - 
Marattia, 135- 
eg 405, 406. 
arsilia, 161, 283, 393- 
Masdevallia, at ” 
Maxillaria, 417. 
Maytenus, 483. 
Medeola, 114. 
Medicago, 385, 460. 
Megapterum, 393- 
Melasmia, 209, 286. 
Meliola, 237. 
Melioloa, 434, 438. 
enamel 483. 
ogramma, 82, 440, 479- 
Melosira, 173, 263, 275- 
Melothria, 151. 
IX 
| Metzgeria, 136. 
| Meum, 405. 
| Mibora, 405. 
| Micrasterias, 292, 297- 
Microchaete, 427. 
Microcoleus, 427 
Microseris, 111, 338- 
Microsphaera, 52. 
Mikania, 446. 
Mimosa, 413. 
Mimulus, 90, 185, 237, 285- 
Mirabilis, 135 
Mitchella, 141. 
Mitella, 137 
Mnioides, 406. 
Mnium, 414. 
Mocinna, g2. 
Monilea, 135. 
Monilia, 238. 
Monniera, 46, 47, 92, 393- 
Monnina, 236, 479- 
Monoblepharis, 483. 
Montanoa, 136. 
Mormodes, 480. 
Morongia, 143. 
Mosquitoxylum, 483. 
Mongeotia, 445- 
Muhblenbergia, 135. 
Musa, 383. 
Musineon, 337. 
Mutinus, 238. 
Mycena, 199, 200, 286, 486. 
Mylittopsis, 377- 
Myosotis, 383- 
Myosurus, 474- 
Myriophyllum, 138. 
Myrsine, 436, 483. 
Naias, 138. 
Nasturtium, 405, 475- 
Naucoria, 486. 
Navicula, 173, 263, 264, 274- 
Neckeria, 405. 
Needhamia, 25. 
Neillia, 271. 
Nelumbium, 324, 384. 
Nelumbo, 102, 120, 266, 270, 271» 324» 376. 
Nemophila, 479, 519- 
_ Neogoezia, 519, 529. 
Neosyris, 375 
Nephroma, 245- 
Nephromium, 194, 497- 
Nicotiana, 104, 105, 383, 443- 
Nidulariopsis, 416, 481. 
Nitella, 68, 69, 79> 71, 85, 134, 398, 402- 
Nitzschia, 264, 275- 
Nolina, 158, 238- 
Nostoc, 197, 428, 429- 
Nostochopsis, 427. 
Notothylas, 138. 
Notylia, 417. 
Nummularia, 362. 
Nuphar, 325, 497- 
Nymphaea, 120, 147, 407, 460, 473- 
Obolaria, 413- 
Octoblepharum, 442. 
Odonia, 500. 
Odontidium, 265. 
Oenothera, 151, 339, 381 383- 
Oligonema, 333- 
Olpidium, 185- 
Omphalia, 200, 286. 
Onagra, 392, 460. 
Onoclea, 235, 283, 412- 
| Opulaster, 271, 272, 376, 460. 
Opuntia, 115, 116, 393» 417» 428- 
