10 FERNS AND 



DENTARIA, L. toothwort. 



diphylla, L. common toothwort. 



laciniata, Muhl. cut-leaved toothwort. 

 DESMODIUM, Z>. C. (hedysarum). 



acuminatum, D. C. 



canescens, D. C. hoary, 



cuspidatum, Torr. <$/■ Gr. sharp-pointed. 



nudiflorum, D. C. naked-flowered. 



pauciflorum, D. C. few-flowered. 



paniculatum, D. C. long-leaved. 



rotundifolium, D. C. creeping. 

 DIAN'rHERA, Gronov. water willow; (justicia). 



americana, L. 

 DIARRHENA, Raf. 



americana, Beauv. (festuca decandra Mx.) 

 DICENTRA, Sork. 



canadensis, D. C. squirrel corn. 



cucullaria, D. C Dutchman's breeches. 

 DIOSCOREA, Plumier. yam root. 



villosa, L. 

 DIPSACUS, Tourn. teasel. 



sylvestris, Mill, wild teasel. 

 DIPTERACANTHUS, Nees. (ruellia). 



strepens. Nees. 

 DIOSPYRUS, L. persimon. 



virginiana, L. 

 DODECATHEON, L. false cowslip. 



meadea, L. 

 DRABA, L. whitlow grass. 



verna, L. 

 DULICHIUM, Richard. 



spathaceum, Pers. 



E. 



ECLIPTA, L. 



procumbens, Michx. 

 ELEPHANTOPUS, L. 



carolinianus, Willd. 

 ELEUSINE, Gartner, garden grass; wire grass. 



indica, Gcertner. 

 ELYMUS, L. lime grass ; wild rye. 



virginicus, L. wild rye. 



hystrix, L. hedge-hog grass. 



canadensis, L. 



striatus, Willd. striated lime-grass. 



