Lake Maxinkuckee, Physical and Biological Survey 469 



Defiance, Ohio, 113, 187, 359. 

 Delong, Ind., 43, 55, 61, 62, 64, 71, 72, 



275, 314, 322, 402. 

 delphinifolius, Ranunculus, 311. 

 deltoides, Populus, 278. 

 demersum, Ceratophyllum, 78, 165, 



302. 



Dense Button-snakeroot, 429. 

 Dentaria laciniata, 320. 

 dentata, Poinsettia, 352. 

 Department of Agriculture, Washing- 

 ton, D. C., 7, 324. 

 depygis, Goniobasis, 73. 

 Deringa canadensis, 378. 

 desidiosa, Lymnaea, 72. 

 Desmidium quadratum, 152. 



schwartzii, 152. 

 Devil's Popcorn, 415. 

 Dewberry, 332. 

 dianae, Closterium, 153. 

 Diatoms, 161. 

 diandra, Carex, 250. 

 diandrus, Cyperus, 240. 

 Diaphanosoma brachyurum, 107. 



leuchtenbergianum, 77. 

 Diapheromera femorata, 27, 29. 

 Diaptomus minutus, 107. 



oregonensis, 77. 

 dichotoma, Aristida, 230. 

 Dictosphaerium ehrenbergianum, 150. 

 differentialis, Melanoplus, 28, 29. 

 Dina fervida, 95. 



parva, 95. 

 Dineutes, 33, 34. 

 Dinobryon sp., 96. 

 diogenes, Cambarus, 83, 84. 

 dioica, Gynmocladus, 338. 



Urtica, 290. 



dioicum, Thalictrum, 313. 

 Dioscoreaceae, 268. 

 Dioscorea villosa, 268. 

 diphylla, Mitella, 323. 

 Diplesion blennioides, 43. 

 Diptera, Order, 35, 36. 

 Dirca palustris, 370. 

 discolor, Salix, 280. 

 Dissosteira Carolina, 29. 

 Distomum, 100. 

 Distribution of Mussels in the Lake, 



44. 

 Ditch Stonecrop, 323. 



Ditch-moss, 174, 221. 

 divagans, Enallagma, 23. 

 divaricata, Phlox, 398. 

 divaricatum, Urticastrum, 290. 

 divaricatus, Helianthus, 440. 

 dives, Tanytarsus, 36. 

 Diving Beetles, 33. 

 Docidium verrucosum, 153. 

 Dock, Bitter, 293. 



Broad-leaved, 293. 



Curled, 292. 



Narrow, 292. 



Peach-leaved, 292. 



Prairie, 437. 



Tall, 292. 



Dock-leaved Persicaria, 294. 

 Dodder Family, 397. 

 Dodder, Common, 397. 



Field, 397. 



Glomerate, 397. 

 Dodecatheon meadia, 389. 

 Doellingeria umbellata, 436. 

 Dog-day Locust, 31. 

 Dog's-tail Grass, 233. 

 Dogbane Family, 392. 

 Dogbane, Spreading, 392. 

 Dogfish, 100: 

 Dogwood Family, 382. 

 Dogwood, Alternate-leaved, 383. 



Flowering, 383. 



Red-osier, 382. 



. dolomieu, Micropterus, 80, 82. 

 domitia, Perethemis, 13. 

 Doolittle, Prof. A. A., 76. 

 Doorrweed, 293. 

 Dotted Smart-weed, 295. 



Wolffia, 259. 



douglassii, Cardamine, 320. 

 Downy False Foxglove, 412. 



Grape, 362. 



Poplar, 276. 



Phlox, 398. 



Thorn, 335. 



Yellow Violet, 370. 

 Dracocephalum virginianum, 404. 

 dracontium, Arisaema, 254. 

 Dragon-flies, 10. 



Introduction to, 10. 



List of species of, 12. 

 Dragon-head, 404. 

 Draparnaldia glomerata, 155. 



