504 Lake Maxinkackee, Physical and Biological Surrey 



Stiff Golden-rod, 432. 



Marsh Bed-straw, 419. 



Tickseed, 440. 



White Water Crow-foot, 187. 

 Stiff-haired Sunflower, 440. 

 Stiff-leaved Aster, 436. 

 stimulans, Culex, 36. 

 Stinging Nettle, 290. 

 Stipa spartea, 229. 

 stipata, Carex, 250. 

 Stitchwort, Long-leaved, 300. 

 Stizostedion vitreum, 80. 

 stolonifera, Cornus, 382. 

 Stonecrop, Ditch, 323. 

 Stout Naias, 173. 



Rush, 262. 



Scouring-rush, 205. 

 straminea, Carex, 250. 

 stramonium, Datura, 408. 

 Straw Bass, 100. 



Sedge, 250. 

 Straw-colored Cyperus, 240. 

 Strawberry Bush, Running, 355. 



Virginia, 330. 



Wild, 330. 

 strengii, Pisidium, 74. 

 striata, Lespedeza, 343. 

 stiiatinum, Sphasrium, 73. 

 stricta, Carex, 252. 



Verbena, 401. 



Xanthroxalis, 348. 

 strigosus, Cyperus, 240. 



Rubus, 331. 

 Strobilops affinis, 75. 



labyrinthica, 75. 



virgo, 75. 

 Strong-scented Love-grass, 234. 

 Strophitus edentulus, 60. 

 Strophostyles helvola, 346. 



pauciflora, 348. 



umbellata, 348. 

 strumosus, Helianthus, 440. 

 styraciflua, Liquidambar, 325. 

 subcordatum, Alisma, 219. 

 subcrenatum, Cosmarium, 153. 

 subrostrata, Lampsilis, 44, 63. 

 subrotundatum, Pisidium, 74. 

 subterminalis, Scirpus, 245. 

 subulare, Pleurocera, 73. 



intensum, Pleurocera, 73. 

 subverrucosa, Chara, 160. 



Succinea avara, 75. 

 obliqua, 75. 



retusa, 75. 

 Sucker, Carp, 258. 

 Sugar Maple, 360. 

 Sugar-berry, 289. 

 Sugar-tree, 360. 

 sulcatum, Sphserium, 73. 

 sulcatus, Stenelmis, 34, 46. 

 Sumac Family, 353. 

 Sumac, Dwarf Black, 353. 



Greene's, 353. 



Mountain, 353. 



Scarlet, 353. 



Smooth Upland, 353. 



Staghorn, 353. 



Swamp, 354. 

 Summer Grape, 362. 

 Sundew Family, 321. 

 Sundew, Round-leaved, 321. 



Spatulate-leaved, 322. 

 Sundrops, Small, 373. 

 Sunflower, Common, 439. 



False, 437. 



Few-leaved, 439. 



Giant, 439. 



Hairy, 440. 



Pale-leaved Wood, 440. 



Rough, 440. 



Stiff-haired, 440. 



Tall, 439. 



Wild Giant, 439. 



Woodland, 440. 

 superbum, Lilium, 263, 264. 

 Susan, Black-eyed, 438. 

 Swallowtail, Ajax, 38. 



Zebra, 38. 

 Swamp Beggai'-ticks, Purple-stem- 

 med, 441. 



Blackberry, Running, 333. 



Fly-honeysuckle, 421. 



Hickory, 272. 



Horsetail, 205. 



Lousewort, 413. 



Loosestrife, 191, 370. 



Milkweed, 394. 



Oak, 284. 



Persicaria, 294. 



Poplar, 276. 



Rose, 333. 



Saxifrage, 323. 



