560 



INDEX. 



Page. 



Cyperua microdontus ... 452,517 



uuttallil _. 319.517 



ovuiaris 517 



pseudovegetus 406,439,451.517 



retrofractua .__ 517 , 



rotundus __ 414.4~a.517 



speciosus 315 



stenolepis _._ 452 



■trigoeus 518 



tetragon us . 452 



torreyi 315 



Cypress 334,335,337,355,418,420, 



42 1 , 425, 429, 433, 434 , 436, 479, 48 1 , 483. 53 1, 540 



bald 417, 418, 433,443 



blown-down, in Dismal Swamp 342 



stumps, Dismal Swamp 340. 41* 



trees in sand dunes 334 



Cypripedium acaule 450,522 



Oyrilla 458 



race minora 454,532 



Cyrillaceae 532 



Cystopteris Iragilis * 148 



D. 

 Dactylis 412 



glomerata 412,4ti9, 510 



Dactyloctenium aegyptiacum 414.510 



Daisy, white __ (72 



Damiana 230 



Danthoiiia 4(15 



californica . __ M 



intermedia 30 



sericea 380,401,451,516 



spicata 401,516 



Dark swamp 417 423 



Dasylirion spp. 224,240 



Dasystoma 458 



flava 540 



Dato palm 214 



Dat ura . 543 



stramonium . 540 



tatula 230.318.414.540 



Daucus earota 408,414,535,541 



Deciduous forest 418,419,422 



trees of CdMir d'Alenes . :i:;. .",.", 



Decodon 458 



verticillatus 428, 437, 440, 443, 534 



Decorative plants 256 



Decumaria. _.,__. 421,458 



barbara... 416,421.449.4.54.485,491,527 



l><Ifi!tinoa _ 157 



grncillima. 157 



Deudrium buxifolium. 455 



Deschuinpsia atropurpurea 36 



oaespitosa 3.5 



elongata 35 



"Desert," Dismal Swamp region... 3151, 334, 335 



Ih'slimil illul . ... _ 380 



paniculatum 316 



strict am. 382 



Dewberry. 375,470,471.479 



Devil s shoestring 541 



Dianthera amcricana 437,538,541 



ovata 456 



Diehondra e vol vulacea 456, 459. 538 



Dictaromena colorata 274,315, 4i»i, 452.518 



Page. 



Dichromena latifolia 452 



leucocephula __ 274,315 



Dicotyledones 522 



Dicranum rlagellare 511 



scoparium 511 



Digitaria fimbriata 315 



Diodia teres 272, 



276. 318. 375, 376, 382, 385. 388, 4.56. 541 



virginiana 274, 276, 3)8, 378, ,'594, 4.56, 541 



Dionaea muscipula 454 



Dioseorea eon vol vulacea 236 



«P 236 



villosa 416.522 



Diosroreaceae _ 2:36.462.522 



Diospyros . 405 



ebenaster 223 



virginiana 372, 373, 378, 382, 394, 



399, 400, 407, 471, 472. 477,479,482.537 



Diploptychia 137 



Dist'opleura 458 



Dishcloth 249 



Dismal Swamp, area 339 



canal __ 34,339.;i5ti 



cause of its existence 339 



depth of water 341 



description ._ 341 



early survey 341 



elevation 339 



location 339 



Dismal-Swamp plants, anatomy 484 509 



region, aquatic plants 443-447 



bi bhography 547-550 



botanical survey 321-550 



cleared land formations 406-414 



climate 324-330 



cultivated plants 410 414 



drainage 322, 



:139. 347, 353-356, 358, 395, 474 



families of plants 461 



field crops 411,412.467 471 



forest tires _. 415,410 



forest formations ._ 396-406 



freshwater formations 417-447 



freshwater marsh formations.. 436-440 



frosts 326 



genera, endemic 459 



genera, monotypic 458,459 



genera, nonendemic 459 



geography 331-342 



geology 342-344 



hygrophile forests 417-436 



introduced plants .. 461 



lianas 416,420 



life zones and areas 447-450 



list of plants 509-547 



location and extent _ 331 



maritime plant formations 360-395 



n on hygrophile inland forma- 

 tions 395-416 



northern limits of species 450-457 



peat deposits 342,350,351,423,424 



physiography 331-342 



phytogeographical affinities 447-462 



plant formations 359-447 



rainfall 328,329,357 



relation of plants to soils 473-484 



