28 GENERIC INDEX. 
Spicaria, x., 97. 
Spigelia, xiii., 126; xv., 128. 
Spinacea, xi., 58; xii., 87. 
Spirza, 1x., 156; x., 96; X1., 36; xiv., 230, 232; 
Xvi., 287, 330, 340 
Spiranthes, vii., 18, 54, 82, 98, 101, 114; vili., 28; 
X., 88, 84, 105, 121; x1., 36; xili., 74, 189, 226; 
Xiv., 286; xvi., 265. 
Spirillum, ix., 25. 
Spirogyra, vii., 47; vili., 37, 40; ix , 26; x., 15; 
xili., 94, 99; xiv., 197; XV., 158; xvi., 116, 182, 
184, 231. 
Spirophyton, xii., 68. 
Spiroteenia, vil., 44; Xvi., 25, 185. 
Spirulina, 1x., 25; Xil., 129; xili., 93, 105; xv., 
310. 
Splachnum, xiv., 250; xvi., 231. 
Spodiopogon, xvi., 233, 
Spoma, Xiv., 8, 24, 67. 
Spondias, xvi., 191. 
Sporidesmium, viii., 51. 
Sporobolus, vil, 19, 82, 98, 125; viil., 120; ix., 
103, 104, 135, 136; X., 35, 46, 52, 63, 121, 128; 
Xili., 171, 225, 249; xiv., 8, 38, 100, 151; xv., 
8, 49, 293, 295. 
Sporocarpon, Xv., 300, 
Sporocybe, xi., 50. 
Spraguea, ix., 31; xiv., 101. 
Spyridia, xi., 30; xiif., 111; xv., 313. 
Squamaria, xiv. 222. 
Stachys, Vii., 125; xli., 48; xiv., 150, 196, 235; 
XY., 94. 
Stachytarpha, xil., 48. 
Stanleya, xv., 213; xvi., 203. 
Staphylea, vii., 49, 52, 74; 1x., 144; xii., $2; xiii., 
4, 116; xv., 93; Xvi., 52, 56, 232, 340. 
Statice, xi, 95; xv., 17. 
Staurastrum, vii., 46, 91; viil, 2, 3, 40, ix., 27, 
28; X., 19; XL, 18, 14, 16, 17; xii, 4, 5, 6, 51, 
128, 138; Xili., 57, 59, 93; XV., 160; xvi., 188. 
Stauroneis, xiv., 32, 70, 71, 72, 112, 141; xv., 
131; xvi, 103, 104, 208. 
Stauroptera, xlv., Tl, 72, 112, 
Staurospermum, ix., 26; xii, 127; xlil, 94; 
+ XVL, 184. 
Staurothele, xi., 26. 
Steganosporium, x., 76. 
Steironema, xvi., 135. 
Stellaria, vil, 13, 27, 58, 60, 123; vill., 48; ix., 
36, 149; X1., 128; Xil., 25, 32, 38, 48, 103; xfit., 
6, 189; xiv., 14, 19, 147, 158, 231; xv., 193, 
220; xvi., 61. 
Stenochloa, ix., 135, 137. 
Stenosiphon, xi., 115; xiv., 223. 
Stenotaphrum, ix., 134; xii., 48. 
Stephanomeria, xiv., 16. 
Stephanopyxis, xvi., 76. 
Stereocaulon, xv., 184. 
Stereopelte, xi., 25. 
Stevia, xi., 128, 130. 
Sticta, xv., 184. 
Stictis, viii., 65; x., 76, 84. 
Stictodiscus, xvi., 209. 
Stigmaria, xvi., 173. 
Stigeoclonium, vii., 48; xv., 156. 
Stigmatidium, xvi., 105. 
Stillingia, xiii., 126; xiv., 223; xvi., 67. 
Stilbospora, xi., 18. 
Stilophora, xi., 30; xfii., 109. 
Stipa, vil., 82; viii., 76; ix., 88, 185; x., 8, 42, 63; 
Xi., 125, 126; xili., 53, 176; xiv., 99; xv,, 49; 
xvi., 70. 
Stramonium, x1, 54. 
Strelitzia, xiii., 188, 139. 
Streptanthus, xiii., 141, 142; xiv., 196; xv., 299. 
Streptogyne, ix., 135. : 
Streptopus, ix., 114; x., 44; xiv., 236; xv., 188. 
Striaria, 1x., 66; xiii., 109. 
Striatella, xiv., 28, 32, xv., 131. 
Strobilomyces, xii., 33; xvi., 333. 
Struthiopteris, viii, 114; ix., 6; x., 118; xiv., 
181. 
Stuartia, xv., 326; xvi., 59. 
Strychnos, viii., 120. 
Stylidium, ix., 117. 
Stylyphorum, xiif,, 115. 
Stylosanthes, vii., 114; vili., 7; xii., 118; xtif., 
69; xvi, 261. 
Stytonema, viii., 38. 
Suseda, x., 96; xXiii., 246; xvi., 144. 
Subularia, x., 34; xi, 118; xvi., 286, 291, 331. 
Surirella, xiv., 141, 142, 175; xv., 131, 183, 220; 
xvi., 76. : 
Swartzia, xvi., 107, 
Sycocarpus, xiv. 143; XV., 276, 
Symblum, viii. 95. 
Sympetaleia, xiv., 105. 
Symphiostemon, xv., 17, 105. 
Symphoricarpos, vii., 53; viii., 69, 114, 136; ix., 
153; xii., 64; XV., 115, 128, 302; xvi , 59. 
Symphonia, xvi., 63. ‘ 
Symphytum, vil., 27, 125; xiv., 13, 59. 
Symplocarpus, vii., 25; ix., 10,84; xili., 177; 
xiv., 140, 154; xv., 151; xvi., 89. 
Synchytrium, xiv., 246. 
Syndesmon, x.. 57. 
Synechococcus, viil., 37. 
Synedra, xiv., 28, 32,175; xv., 131, 133; xvi., 164. 
Synthyris, xili., 46. 
Syringa, xill., 203, 237. 
Syrmatium, xiv., 16; xv., 243. 
Systegium, vii., 7, 8. 
Systemodaphne, xvi., 282. 
Tabernzemontana, xiil., 203, 204. 
Tacsonia, viil., 69. 
Teeniopteris, vii., 76. 
Teenitis, vill., 88; ix., 50. 
Tagetes, x1., 35. R 
