704 



Generic Index 



Mauri tia, 527. 

 Melia, 95. 

 Melica, 372. 

 Melilotus, 94. 



Meliola, 184. 

 Mentha, 98. 



Mentzelia, 644, 689. 

 Mertensia, 32, 33. 

 Mesademia, 483. 

 Mesosphaerum, 483. 

 Mimosa, 93, 675-677. 

 Mimulus, 27, 45. 

 Mitchella, 99. 

 Mnium, 5. 

 Mollugo, 72, 92. 

 Monarda, 82, 98, 502. 

 Monniera, 99. 

 Montolivaea, 269, 270, 

 Muhlenbergia, 19, 72. 

 Musineon, 225. 

 Myrica, 68, 74, 91. 



635, 638, 640 



ASTURTIUM, 648. 



Nemophila, 137-160, 678. 

 Nymphaea, 648. 



QDONTOSCHISMA, 1. 



^-^ Oenothera, 96. 



Oldenlandia, 79, 99. 



Omphalia, 307. 



Onobrychis, 675-677. 



Opuntia, 74, 77, 82, 83, 86, 96, 476, 691. 



Orchis, 605, 607, 608, 617-620, 622. 



Oreodoxa, 527, 549-55*, 554, 5 6 9- 

 Oreolirion, 571. 



Ornithopteris, 2. 

 Orthocarpus, III. 

 Orthotrichum, 372. 

 Osmunda, 84. 

 Oxalis, 94. 



Oxypolis, 483. 



pANICULARIA, 663. 



Panicum, 67, 68; 70-72, 83, 86, 87, 

 372, 462, 463, 663. 

 Pappophorum, 236. 

 Paronychia, 288. 

 Paspalum, 84. 

 Passalora, 187. 

 Patellaria, 350, 354. 

 Pedicularis, 27. 

 Pelargonium, 339. 

 Pellia, 73. 



Pentstemon, 28, III, 

 Pera, 308. 



Peridermium, 665. 

 Persea, 93, 184. 

 Perularia, 605, 622. 

 Peucedanum, 226. 

 Phacelia, 30, 44, 1 11, 229. 



Pharmacosycea, 309. 

 Phaseolus, 473. 





2^0 



503. 



462,. 



Phenax, 313. 



Philadelphus, 471. 

 Phlox, in. 



Phoenix, 528. 

 Phoradendron, 374, 388. 

 Phragmites, 80, 88. 

 Phyllanthus, 301. 

 Physaria, 278, 279. 

 Physalis, 72, 98. 

 Picradenia, 21. 

 Pilea, 311. 

 Piloxerus, 83. 

 Pinanga, 556. 



Pinus, 68, 73, 82, 84/405, 455, 45 8 , 

 675-677. 



Piperia. 269, 270, 605-643, 691. 



Plantago, 1 12-122. 



Platanthera, 269, 270, 605-643. 



Platanus, 493. 



Plowrightia, 187. 



Pluchea, 8^, 100. 



Poa, 266, 690. 



Podocarpus, 528. 



Podostigma, 680. 



Pogonatum, 5. 



Polemonium, 29. 



Polygala, 82, 95, 473. 



Polygonella, 91. 



Polygonum, 77,84, 91,92, ill. 



Polymnia, 482. 



Polypodium, 74. 



Polypremum, 79, 97. 

 Pontedena, 90. 



Ponthieva, 470. 

 Populus, 91, 374. 

 Porteranthus, 372. 

 Porterella, 372. 

 Portulaca, 678. 

 Potentilla, 173-183, 

 Pouzolzia, 313. 

 Primula, 500. 

 Proserpinaca, 96. 

 Prunus, 290, 372. 



Pseudo-cymopterus, 224. 

 Ptelea, 291-294. 

 Pteridium, 486. 

 Pterigynandrum, 130. 

 Pteris, 84, 486. 



Pterogonium, 124. 

 Ptilota, 263. 



Puccinia, 84, 661-664. 



UERCUS, 68, 73, 82,91, 188, 355* 

 357, 374, 422, 441. 



T> AMALINA, 73, 75- 



Ranunculus, 372. 

 Raillardella, III. 

 Rhamnus, 308. 

 Rhexia, 82, 465, 476. 

 Rhizoclonium, 1. 



223. 



