INDEX. 



Solidago serotina, 480. 

 Solidago speciosa, 476, 564. 

 Solidago squarrosa, 474, 563. 

 Solidago tenuifolia, 484. 

 Solidago uliginosa, 476, 563. 

 Solidago ulmifolia, 478. 

 Solomon's Seal, 36. 

 Solomon's Seal, False, 32. 

 Solomon's Seal, Three-leaved 



False, 32. 



Sonchus asper, 534. 

 Sonchus oleraceus, 534. 

 Sorrel Family, 234. 

 Sorrel, Field or Sheep, 104. 

 Sorrel, Lady's 236. 

 Sorrel, Violet Wood, 234. 

 Sorrel, Wood, 234. 

 Sorrel, Yellow Wood, 236. 

 Southbury, Conn., 374. 

 SPARGANIACE^:, 4. 

 Sparganium americanum, 536. 

 Sparganium americanum, var. 



androcladum, 4. 



Sparganium an gusti folium, 536. 

 Sparganium diver si folium, 536 

 Sparganium eurycarpum, 4. 

 Sparganium fluctuans, 536. 

 Sparganium lucidum, 536. 

 Sparganium minimum, 536. 

 Sparganium simplex, 4. 

 Spatter-dock, 126. 

 Spearmint, 392. 

 Specularia perfoliata, 456. 

 Speedwell, Common, 424. 

 Speedwell, Marsh, 424. 

 Speedwell, Thyme-leaved, 426. 

 Spergularia rubra, 126. 

 Spiderwort, 20. 

 Spiderwort Family, 18. 

 Spikenard, 302. 

 Spir&a, Aruncus, 190. 

 Spiraa lobata, 190. 

 Spiraa latifolia, 188. 

 Spiraa tomentosa, 188. 

 Spiranthes cernua, 72, 74. 

 Spiranthes gracilis, 74. 

 Spiranthes prcecox, 74. 

 Spiranthes Romanzoffiana, 76. 

 Spring Beauty, 114. 

 Spurge, Cypress, 248. 

 Spurge Family, 246. 

 Spurge, Seaside, 246. 

 Spurge, Spotted, 246. 

 Spurge, Sun, 248. 

 Spurge, White Margined, 248. 

 Squawroot, 436. 

 Squirrel Corn, 162. 

 Stachys tenuifolia, var.aspera, 410 

 Stachys palustris, 410, 561. 

 Staff-Tree Family, 254. 

 St. Andrew's Cross, 268. 

 Star Flower, 344. 

 Star Grass, 60. 

 Star-of-Bethlehem, 56. 

 Statice Limonium, var. caro- 



liniana, 350. 



Steeplebush, 188. 

 Steironema ciliatum, 344. 

 Steironema lanceolatum, 344. 

 Stellaria graminea, 124, 553. 

 Stellaria longifolia, 124. 

 Stellaria media, 124. 

 Stenanthium gramineum, 48. 

 Stenanthium, Stout, 48. 

 Stickseed, European, 378. 

 Stickseed, Virginia, 378. 

 Stick-tight, 512. 

 Stitchwort, Lesser, 124. 

 Stitch wort, Long-leaved, 124. 

 St. John River, Fort Kent, Me., 



132. 



St. John's-wort, Common, 270. 

 St. John's-wort Family, 268. 

 St. John's-wort, Great, 268. 

 St. John's-wort, Marsh, 272. 

 St. John's-wort, Shrubby, 268. 

 St. John's-wort, Spotted, 270. 

 St. Libory, St. Clair Co., 111., 



158. 



Stonecrop, Ditch, 180. 

 Stonecrop, Wild, 180. 

 St. Peter's-wort, 268. 

 Strawberry, American Wood, 



196. 



Strawberry, Wild Virginia, 196. 

 Streptopus amplexifolius, 28. 

 Streptopus longipes, 28 

 Streptopus roseus, 28. 

 Strophostyles helvola, 226. 

 Stylophorum diphyllum, 156. 

 Succory, 524. 

 Sumac, Dwarf, 250. 

 Sumac, Poison, 252. 

 Sumac, Smooth, 250. 

 Sumac Staghprn, 250. 

 Sundew Family, 178. 

 Sundew, Long-leaved, 178. 

 Sundew, Round-leaved, 178 

 Sundew, Slender, 178. 

 Sundew, Thread-leaved, 178. 

 Sundrops, 298, 300. 

 Sunflower, Small, 510. 

 Sunflower, Tall, 510. 

 Sunflower, Ten-petaled, 512. 

 Sunflower, Thin-leaved, 512. 

 Sunflower, Woodland, 510. 

 Sweetbrier, 206. 

 Sweet Cicely, 314. 

 Sweet Flag, 16. 

 Sweet Scabius, 498. 

 Symphoricarpos orbiculatus, 448. 

 Symphoricarpos racemosus, 450. 

 Symphoricarpos racemosus, var. 



lavigatus, 552. 

 Symplocarpus fcetidus, 14. 



Tanacetum vulgare, 516, 568. 

 Tansy, 516. 



Taraxacum erythrospermum, 532. 

 Taraxacum ojficinale, 532. 

 Tearthumb, Arrow-leaved, 108. 

 Tearthumb, Halberd-leaved, 108 



585 



