﻿648 



Generic Index 



Polygonum, 41, 209, 489. 

 Polymnia, 493. 



Polyotus, 30, 32, 33, 36, 416, 420. 

 Polypodiura, 357, 601, 602. 

 Polyporus, 364, 513. 

 Polytrichum, 398. 

 Pontederia, 488. 

 Potamogeton, 487. 

 Populus, 502, 503, 510, 514. 

 Porella, 95, 96. 97, 98, 99, 100, 101, 

 102, 103, 183, 428. 



Porotrichum, 5*8- 



Portulaca, 400, 577. 



Potentilla, 54, 55, 56, 208, 212, 215, 



490, 573- 

 Primula, 319, 320. 



Proserpinaca, 491. 



Prosopis, 456. 



Prunus, 149, 150, 357, 401, 511, 576. 



Pseudoleskea, 398. 



Pseudoneura, 410. 



Pseudotsuga, 91, 165. 



Pterigynandruai, 234, 398. 



Pteris, 357, 523, 596, 597. 



Pterophyes, 357. 



Ptiloria, 123. 



Ptychophyllum, 291. 



Puccinia, 159, 331, 335, 508, 575, 622, 



623. 

 Pycnodon, 631. 

 Pyrenacantha, 409. 

 Pyrenochaeta, 510. 

 P)laisia, 398. 

 Pyrola, 212. 



Quercus, 512, 514. 



Radula, 428. 



Ranunculus, 489, 580, 5^ r - 

 Rauwolfia, 495* 

 Ravenelia, 508. 

 Razoumofskya, 556. 



Reseda, 356. 

 Retama, 356. 

 Rhamnus, 633. 

 Rhexia, 468, 489. 

 Rhinanthus, 209. 

 Rhizobium, 577. 

 Rhizogonium, 518. 

 Rhododendron, 491. 

 Riccardia, 410, 411, 412. 



Riccia, 25, 184, 186, 187, 1S8, 189. 



Rhynchospora, 488, 600. 

 Rhynchostegium, 222, 225, 238, 250, 519. 



Robinia, 490. 

 Romulea, 356. 

 Rosa, 152, 215, 49°- 

 Rotala, 491. 

 Rubia, 354. 

 Rubus, 210, 490. 

 Rudbeckia, 215, 478, 479. 

 Ruellia, 492. 



Rumex, 283, 489, 509, 549. 

 Rusbyanthus, 545. 

 Russula, 370. 



Sabal, 360, 361, 594. 



Sagina, 489. 



Salix, 209, 488, 505, 580. 



Salvia, 355. 



Sambucus, 309, 310, 493. 



Sarcomitrium, 411. 



Saururus, 402. 



Savastana, 104, 105. 



Saxifraga, 316, 317, 391. 



Scapania, 183, 184, 425. 



Schistochila, 428, 429. 



Schizachyrium, 83. 



Scirpus, 214, 488. 



Scleropodium, 229, 233. 



Scolecotrichum, 366. 



Scrophularia, 308. 



Scutellaria, 142, 143, 144, 283. 



Secondatia, 496. 



Sedum, 357, 489. 



Selaginella, 125, 126, 127, 128, 129, 



. *3*i 132, 5", 541- 



Selinocarpus, 304. 



Sempervivum, 357. 



Sendtnera, 419. 



Senecio, 122, 147, 148, 212, 213, 



357. 358, 379, 549- 

 Senna, 554. 



Septoria, 368. 



Sericocarpus, 620. 



Serjania, 212, 336, 337. 



Setaria, 107. 



Shepherdia, 215. 



Sherardia, 354. 



Sicyos, 310. 



Sida, 468, 490, 606. 



Silene, 216, 368, 489. 



Silphium, 145, 146. 478, 493. 



Siphonychia, 150, 621. 



Sisymbrium, 456, 460. 



Smilax, 605, 607, 608, 609. 



Solenia, 326. 



Solidago, 377, 378, 474, 475, 476, 



478, 493. 549, 619. 

 Sonchus, 209. 



Sophia, 455, 460. 

 Spartina, 338, 339, 487. 



Sphaeralcea, 306, 307. 



Sphaerella, 504. 



Sphaeria, 361, 362. 



Sphaeropsis, 327, 360, 361, 509, 553 



Sphagnum, 5*9* 

 Spigelia, 542, 543. 

 Spiraea, 210, 581, 627. 

 Sporobolus, 87, 88, 89, 338, 487. 

 Sporonema, 363. 

 Sporotrichum, 555. 

 Stachys, 581, 582. 



130, 



355, 



477, 



