278 



Rinodina 170, 269 



Rivularia 241 



Robinia 92, 198, 231 



Rosa 96, 202, 259, 260 



Rubus 96, 200, 204, 218, 221, 224 



[234, 267 



Rudbeckia 108 



Rumex 130, 212 



Sacidium 197 



Sagedia 173 



Sagittaria 139 



Salix 73, 134, 208, 268 



Salvia . . ...121,262 



Sambucus 104, 201, 215, 228 



Samolus 117 



Sanguinaria ,....81 



Sanguisorbia (Poterium) 95 



Sanicula 100 



Saponaria .86 



Sarracenia 72, 80, 197, 234 



Sassafras 130 



Satureia 262 



Saururus 130 



Saxifraga 70, 71, 72, 97 



Schenedesmus 239 



Scheuchzeria 72, 139 



Schistidium 160 



Schizophyllum 182 



Schizosiphon 240 



Schollera 145 



Scleranthus 257 



Scleria 146 



Scleroderma. 194 



Scirpus 72, 145, 198, 206, 233, 265 



Scorias 209 



Scrophularia 118, 201 



Scutellaria 122 



Scy tonema 240 



Sedum ........ 9S 



Selaginella 156 



Seligeria. 157 



Selinum 100, 267 



Senecio in 



Sepedonium 213 



Septonema 203 



Septoria 200, 201, 269 



Setaria 152 



Shepherdia 130 



Sicyos 99, 260 



Sida 88, 259 



Silene 86 



Silphium 108 



Silybum in 



Sinapis (Brassica) 83 



Sirurella 244 



Sisymbrium 71, 83, 258 



Sisyrhinchium 142, 265 



Sium (Berula, 101) 100 



Smilacina 143, 197, 201 



Smilax 142, 199, 235 



Solarium 124 



Solea (Ionidium) 84 



Solenia- 190 



Solidago 73, 107, 208, 260 



Sonchus 113 



Sorghum 152 



Sparganium 138, 207 



Spartina 150 



Spathularia 217, 225 



Specularia 113 



Spergula 87 



Sphaeria. . .197, 201, 225, 226, 227, 228 

 [229, 230, 231, 234 



Sphserella 234 



Sphserobolus 197 



Sphseronema 198 



Sphseropsis 198 



Sphserotheca 214 



Sphagncecetis. 166 



Sphagnum , 157, 269 



Sphinctrina 221 



Spiraea „ 94 



Spiranthes 140 



Spirodela 137 



Spirogyra 238 



Sporendonema .214 



Sporidesmium , 203 



Sporobolus 149 



Sporocybe 198, 210, 211 



Stachys 122 



Stamnaria 219 



Staphylea 72, 91, 202, 234 



Stauroastrum 238 



Stauroneis 249 



Staurothele 173 



Stellaria 72,87,266 



Stemonitis 195 



Stephanodiscus 244 



Stereocaulon 171 



Stereum 188, 189 



Sticta 168 



Stictis 222 



Stigeoclonium 236 



Stigmatea 235 



Stilbospora 202 



Stilbum 210 



Streptopus 143 



Streptothrix 212 



Struthiopteris 155 



Symphoricarpus 103 



Symphyosiphon 240 



Symphytum 122 



Symplocarpus 137 



Synallissa 169 



Synechococcus 243 



Synedra 247 



Syringa 198, 262 



Tabellaria 250 



Tanacetum no 



Taraxacum 112, 205 



