[452 



References to the Flora are in brackets [ ] 



Rosa 39, [i.;s 



Carolina : . • [250 



humilis 42; 53. 63, [155 



villosa [155 



rubiginosa [155 



setigera 42, 53, 62, [155 



Woodsii 42. 53. [i.SS 



ROSACEAE [149 



ROSALES [147 



Rose [15s 



low [15s 



prairie climbing [iSS 



swamp [250 



Wood's [155 



Rose family [149 



Rose mallow [176 



Rose-pink [192 



prairie [192 



Rosinweed [231 



Rotala [181 



ramosior 22, [181 



Rubiaceae [213 



Rubiales [213 



Rubus 39, [153 



Canadensis [i53 



nigrobaccus 42, 53, [153 



occidentales 42, 53, [153 



procurabens 42, 53, [153 



villostts [153 



Rudbeckia..2, 27, 32, 39, 52, [233 



grandiflora [233 



hirta 55, 67, 69, [233 



laciniata [233 



pallida [234 



pinnata 63, [234 



purpurea 43-62, 63, [233 



subtomentosa 29, [233 



Tagetes [234 



triloba 47, 52, [233 



Buderales 68 



amarantoides 70 



arctioides 71 



atriplicioides 71 



bromoides 69 



cirsioides 69 



erigerontoides 69 



helianthoides 70 



malvoides 72 



pharbitidoides 70 



plantaginoides 71 



portulacoides 70 



setarioides 71 



Rue-anemone [140] 



false [138] 



Rue family [167] 



Ruellia [211] 



ciliosa 52, 63, 64, [211] 



strepens 52, [211] 



cleistantha [21 1] 



micrantha [211] 



Ruellia [211] 



hairy [211] 



smooth [211] 



Rulac [171] 



Negundo [172] 



Rumex 69, [129] 



Acetosella [129] 



altissimus [129] 



conglomeratus [247] 



crispus 20, 29, 71, [129] 



maritimus [129] 



obtusifolius 71, [129] 



persicarioides [129] 



salicifolius [129] 



verticillatus 20, [129] 



Rupestres 55 



clivosae 58 



fontinales 57 



rimosae 59 



summae 60 



Rupestrine plants 55 



Rush 22, 29, 30, 31, [ill] 



knotted [112] 



soft [112] 



wood [113] 



Rush association (limose).. 22 

 (uliginose) 31 



Rush family [m] 



Rush grass [92] 



Ruta baga [144] 



RUTACEAE [167] 



Rye 70, [99] 



common [99] 



Rje grass, Italian .... [99] 



Sabbatia [192] 



campestris [192] 



Sabina [82] 



Virginia7ia [82] 



Sacred bean [i37] 



Sage, wood [199] 



Sagittaria 29, [84] 



latifoUa [84] 



platyphylla 19, [84] 



variabilis 19, [84] 



Sagittaria [84] 



calycinus ... [84] 



Sagittarias 22 



St. John's wort [176] 



common [i77] 



shrubby [i77] 



spotted [176] 



Salicaceae [120] 



Salicales [120] 



Salix [121] 



