Lake Maxinkuckee, Physical and Biological Survey 501 



Service-berry, 335. 

 Sessile-leaved Tick-trefoil, 342. 

 sessilifolia, Meibomia, 342. 

 Seven-angled Pipewort, 184, 259. 

 Sewickley, Pa., 128, 349, 444. 

 Shag-bark, 273, 275. 

 Sharp-fruited Rush, 262. 

 Sharp-lobed Liverwort, 311. 

 Sharp-toothed Golden-rod, 431. 

 Sheathed Rush-grass, 231. 

 Sheep-berry, 420. 

 Sheep-sorrel, 348. 

 Shell-bark Hickory, 273. 

 Shepherd's-purse, 317. 

 Shield-fern, Crested, 201. 



Marsh, 201. 



Spinulose, 202. 

 shimekii, Ancylus, 73. 

 Shin-leaf, 384. 

 Shining Bedstraw, 420. 



Pondweed, 214. 



Thorn, 335. 



Willow, 279. 

 Shoestrings, 341. 

 Shooting Star, 389. 

 Short-fruited Rush, 262. 

 Showy Goldren-rod, 430. 



Ladies'-slipper, 269. 



Orchis, 269. 



Tick-trefoil, 343. 

 Shrews, 100. 

 Shrimp, Freshwater, 78. 

 Shrubby Bittersweet, 355. 

 sicculus, Labidesthes, 100. 

 Sickle-pod, 319. 

 Sida crystallina, 107. 



spinosa, 365. 



Prickly, 365. 

 signatum, Enallag-ma, 23. 

 Silene antirrhina, 301. 



latifolia, 300. 



stellata, 300. 

 Silkweed, 394. 

 Silky Cornel, 382. 



Willow, 280. 

 Silphium integrifolium, 437. 



terebinthinaceuni, 437. 

 Silver Maple, 356. 

 Silver-leaf Poplar, 275. 

 Silvery Spleenwort, 203. 

 Simaroubacese, 350. 



simile, Sphaerium, 73. 

 Simms, E. G., 194. 

 Simple-stemmed Bur-reed, 211. 

 simplex, Sparganium, 211. 



Valvata sincera, 73. 

 simplicicollis, Erythemis, 15. 

 Simpson, Chas. T., 63. 

 Sinapis arvensis, 321. 

 sincera, simplex, Valvata, 73. 

 Sisymbrium nasturtium-aquaticum, 



188, 318. 

 Sisyrinchium angustifolium, 269. 

 Slum cicutaefolium, 380. 

 Skipjack, 100. 

 Skullcap, Mad-dog, 402. 



Marsh, 402. 



Speedwell, 411. 

 Skunk Cabbage, 255. 

 Sky-blue Aster, 433. 

 Sleepy Catchfly, 301. 

 Slender Bush-clover, 343. 



Cotton-grass, 243. 



Crab-grass, 224. 



Cyperus, 241. 



Fescue-grass, 238. 



Fimbristylis, 243. 



Finger-grass, 224. 



Forked Chickweed, 298. 



Fragrant Golden-rod, 432. 



Knotweed, 293. 



Naias, 184, 218. 



Nettle, 290. 



Pigweed, 296. 



Rush, 261. 



Wild Nettle, 290. 



Yellow-eyed Grass, 259. 

 Slippery Elm, 288. 

 Sloughs of the Mississippi, 78. 

 Small Bedstraw, 419. 



Bur-grass, 227. 



Coral-root, 271. 



Pondweed, 170, 215. 



Sundrops, 373. 



Tufted Love-grass, 234. 



White Aster, 434. 



Wild Bean, 348. 

 Small-flowered Agalinis, 412. 

 Small-fruited Hickory, 254, 274. 

 Small - leaved Tick-trefoil, Smooth, 



343. 

 Small-mouthed Black Bass, 80. 



