XIV 
Sabicea, 418. 
Saccharomyces, 480. 
Sacoglotis, 164. 
Sagittaria, 19, 165, 326, 331. 
Salix, 61, 129, 132, 220, 264, 322, 325, 
469, 542. 
Salvia, 163. 
Sambucus, 30, 276, 325, 458, 467, 570. 
Samolus, 491. 
Sanicula, 577. 
Sarcanthidion, 8o. 
Sarcobatus, 462. 
Sarcocephalus, 539. 
Sarcoscypha, 281. 
Sarcostemma, 305. 
Sarracenia, 23. 
Saxifraga, 58, 247, 343, 356, 454. 
Scheelea, 484. 
Schistostega, 367. 
Schizopelte, 238. 
Schizophyllum, 340. 
Schizothrix, 168. 
Schizothyrella, 465, 466. 
Schizoxylon, 136, 323, 469. 
Schoenolirion, 405. 
Scirpus, 22, 351, 583. 
Scleroderma, 74. 
Scleropodium, 213. 
Scoliopus, 591. 
Scolopendrium, 217, 218, 432, 455. 
Scrophularia, 129. 
Scutellaria, 26, 163, 176, 571. 
Scyphium, 67. 
Selaginella, 182, 325, 424, 515, 538. 
Selaginoides, 512. 
Senecio, 51, 58, 273, 275, 287, 290, 2098, 
326, 455, 479, 542, 575. 
Septoria, 31, 163, 289, 465. 
Septosporium, 292. 
Sequoia, 167, 218. 
Sericocarpus, 570. 
Sesbania, 151. 
Sessea, 99. 
Sidalcea, 362, 455. 
Sieversia, 91. 
Silene, 50, 244, 274, 343, 362, 426, 561. 
Silphium, 493, 573. 
Silvaea, 178. 
Siphocampylus, 162, 373. 
Siphonychia, 337. 
Siphula, 241. 
Sisymbrium, 23, 311. 
Sisyrinchium, 60, 487. 
Skeletonema, 502. 
Smilax, 407. 
Solanum, 26, 99, 165, 168, 257, 418. 
Solarina, 35, 240. 
. Solenia, 340, 469. 
ee “ype 58, 132, 283, 286, 343, 454, 455, 
ae 497, 573- 
Solorina, 240. 
Solorinella, 240. 
Sophia, 58, 311. 
Sophronanthe, 157, 212. 
Sordaria, 458. 
Sorghum, 21. 
Spergularia, 365. 
Sphacele, 163. 
Sphaeralcea, 461. 
Sphaerella, 279, 461. 
Sphaerobolus, 72. ~ 
Sphaerophoron, 238. 
Sphaerophoropsis, 238. 
Sphaeroplea, 542. 
Sphaeropsis, 130, 288, 463, 539. 
Sphagnum, 214, 367, 513, 538, 543- 
Sphyridium, 239. 
Spiesia, 161. 
Spilonema, 240. 
Spinacia, 466. 
Spiraea, 251, 542. 
Spirogyra, 328. 
Splachnum, 514. 
Sporobolus, 167, 282. 
Sporonema, 32, 163. 
Sporotrichum, 56. 
Spraguea, 178. 
Spumaria, 68. 
Stachys, 50, 163, 471, 474. 
Stagonospora, 539. 
Statice, 488. 
Stauroneis, 412, 502. 
Stegia, 541. 
Steironema, 25, 571. 
Stellaria, 244. 
Stemphylium, 475. 
Stenanthium, 344. 
Stenophyllus, 22. 
Stephanogonia, 502. 
Stephanopyxis, 502. 
Stereocaulon, 239, 341. 
Stereodon, 215. 
Stereum, 56. 
Sterigmatocystis, 481. 
Sticta, 35, 79, 240, 341. 
Stictina, 35, 240. 
Stictis, 288, 469. 
Stictodiscus, 502. 
Stigeoclonium, 370. 
Stigmella, 475. 
Strigula, 240. 
Stipulicida, 149. 
nai 158. 
lopteris, 271 
Stylosanthes, 565. >" 
Stypocaulon, 358. 
irella, 412. 
Swartzia, 367. 
— 912. 
ymphoricarpus, 459, 467, 470, 573. 
Sesatiaie. aay » 459. . 7» 47 » 573. 
Syncephalastrum, 543. 
