

Rinodina 106, 205 



Rivularia '77 



Robinia .28, 134, 167 



Rosa 32, 13S, 195. I9 6 



Rubus 32, 136, MO, 154. 157. 160 



[170, 203 



Rudbeckia 44 



Rumex 66, 14S 



Sacidium 133 



Sagedia 109 



Sagittaria 75 



Salix 9. 7o, 144, 204 



Salvia 57. 19 s 



Sambucus 40, 137. I5*i 1( '4 



Samolus 53 



Sanguinaria 17 



Sanguisorbia (Poterium) 31 



Sanicula 36 



Saponaria 22 



Sarracenia S, 16,133,170 



Sassafras 66 



Satureia 19S 



Saururus 66 



Saxifraga 6, 7, 8, 33 



Schenedesmus 175 



Scheuchzeria 8, 75 



Schistidium .96 



Schizophyllum 118 



Schizosiphon 176 



Schollera 81 



Scleranthus 193 



Scleria S2 



Scleroderma 130 



Scirpus 8, 8i, 134, 142, 169, 201 



Scorias 145 



Scrophularia 54. 137 



Scutellaria 58 



Scytonema 176 



Sedum 34 



Selaginella 92 



Seligeria 93 



Selinum 36, 203 



Senecio 47 



Sepedonium 149 



Septonema 139 



Septoria 136, 137, 205 



Setaria SS 



Shepherdia 66 



Sicyos 35, 196 



Sida 24, 195 



Silene 22 



Silphium 44 



Silybum 47 



Sinapis (Brassica) 19 



Sirurella 1S0 



Sisymbrium 7, 19, 194 



Sisyrhinchium 78, 201 



Sium 36, 37 



Smilacina 79, 133, 137 



Smilax 78, 135, 171 



Solarium 60 



Solea (Ionidium) 20 



Solenia 126 



Solidago 9,43, 144. 196 



Sonchus 49 



Sorghum 38 



Sparganium. . . 74,143 



Spartina 86 



Spathularia 153, 161 



Specularia 49 



Spergula 23 



Sphosria. . . 133, 137, 161, 162, 163, 164 

 [165, 166, 167, 170 



Sphaerella 170 



Sphaerobolus 133 



Sphreronema 134 



Sph;eropsis 154 



Sphrerotheca 150 



Sphagncecetis 102 



Sphagnum 93, 205 



Sphinctrina 157 



Spiraea 30 



Spiranthes 76 



Spirodela 73 



Spirogyra 174 



Sporendonema 150 



Sporidesmium 139 



Sporobolus S5 



Sporocybe 134, 146, 147 



Stachys 5S 



Stamnaria 155 



Staphylea 8, 27, 138, 170 



Stauroastrum 174 



Stauroneis 185 



Staurothele 109 



Stellaria 8, 23, 202 



Stemonitis 131 



Stephanodiscus 180 



Stereocaulon 107 



Stereum 124, 125 



Sticta 104 



Stictis 158 



Stigeoclonium 172 



Stigmatea 171 



Stilbospora ' 13S 



Stilbum ... 146 



Streptopus 79 



Streptothrix 148 



Struthiopteris 91 



Symphoricarpus 39 



Symphyosiphon 176 



Symphytum 58 



Symplocarpus 73 



Synallissa 105 



Synechococcus .179 



Synedra 1S3 



Syringa 134, 198 



Tabellaria 186 



Tanacetum 46 



Taraxacum 48, 141 





