ohtusa, 787 



palustris, 786 



Phellos. 786 



rhombica, 787 



rubra, 786 

 digitata, 786 

 leiicophylla, 786 

 pogodaefolia, 786 

 triloba, 786 



similis, 785 



stellata. 785 

 paludosa, 785 

 Quillwort. 43 



family, 41 



Rabbitfoot grass. 238 

 Radish, horse-, 979 

 Ragged fringed orchid, 695 

 Ragweed, 1642 

 giant, 1645 

 western, 1645 

 Ragwort, 1689 

 Railroad vine, 1357 

 Rain-lily, 669 

 Ram's horn, 1510 

 Ranunculaceae. 734, 913 

 Ranunculus, 7, 928 

 abortivus, 945 

 acris. 933 

 apricus, 939 

 aquatilis, 955 



capillaceus. 955 

 cardiophyllus, 944 



subsagittatus, 944 

 carolinianus, 936 

 villicaulis, 939 

 circinatus 



subrigidus, 957 

 Cymbalaria, 953 

 Cymbalaria, 953 

 saximontanus, 953 

 Eschscholtzii, 943 

 fascicularis, 939 

 apricus, 939 

 cuneiformis. 939 

 flabellaris, 952, 953 

 flammula, 946 



ovalis, 946 

 glaberrimus, 945 

 ellipticus, 946 

 Gmelinii 



Hookeri, 952 

 hydrocharoides, 946 



stolonifer, 946 

 inamoenus. 944 

 laxicaulis, 949 

 longirostris. 957 

 Macauleyi, 943 

 Macounii, 936 

 macranthus, 939 



muricatus, 941 



parviflorus, 941 



pedatifidus, 944 

 affinis, 945 



pensylvanicus, 935 



pusillus, 949 



angustifolius, 949 



ranunculinus, 955 



recurvatus, 935 



repens. 933 



pleniflorus, 933 



Sardous, 941 



sceleratus, 949 



septentrionalis 

 pterocarpus, 936 



subrigidus, 957 



terter, 949 



texensis, 949 



uncinatus, 933 

 Earlei, 935 

 Rape, 1453 

 Raspilla, 1042 

 Ratibida, 1652 

 Rattle-box, 1184 

 Rattlebush, 1059 

 Rattlesnake-master, 1254 

 Red 



-ash, 1305 



-bay, 961 



-berried bamboo, 664 



-chokeberry, 1017 



-clover, 1052 



-elderberry, 1559 



-fescue, 179 



-flag, 679 



-grape, 1110 



-haw, 1017 



-mangrove, 1393 



-maple, 1105 



-oak, southern, 785 



-pepper, 1449 



-osier dogwood, 1266 



-root, 862 



-seeded plantain, 1537 



-sprangletop, 256 



-top bentgrass, 231 



-willow, 760 

 Reed canary grass, 268 

 Reed 



common-. 205 



giant-, 202 



-grass, 224 

 Reedgrass, northern, 226 

 Relhunium microphyllum, 

 1540 



Retama, 1039 

 Reynoutria 



Convolvulus, 813 



scandens 



cristatum, 813 



Rhexia, 5, 1169 

 alifanus, 1175 

 ciliosa, 1172 

 interior, 1172 

 lutea, 1172 

 mariana 



exalbida, 1172 



interior, 1172 



mariana, 1172 

 petiolata, 1172 

 virginica, 1172 

 Rhizophora Mangle, 1393 

 Rhizophoraceae, 1393 

 Rhododendron, 5, 1271 

 atlanticum, 1272 

 canescens, 1272 



subglabrum, 1274 

 Coryi, 1271, 1272 

 nudiflorum, 1274 

 oblongifolium, 1272 

 prinophyllum, 1274 

 viscosum, 1272 

 Rhus, 1093, 1367, 1369 

 radicans, 1095 



Rydbergii, 1095 



verrucosa, 1095 



vulgaris, 1095 

 Toxicodendron, 1093 



eximia, 1095 



microcarpa, 1095 



quercifoUa, 1095 



radicans, 1095 



Toxicodendron, 1095 



vulgaris, 1095 

 Vernix, 5, 1093 

 verrucosa, 1095 

 Rhynchospora, 4, 464, 467, 



489 

 caduca, 487 

 capillacea, 474 

 capitellata, 475 

 comiculata, 473 



comiculata, 473 



interior, 473 



macrostachya, 471 

 cymosa, 489 

 divergens, 473 

 Elliottii, 484 

 fascicularis, 478 

 filifolia, 478 

 globularis, 487 



recognita, 489 

 glomerata, 475 



angusta, 475 



glomerata, 475 

 gracilenta, 481 

 Grayi, 481 

 Harveyi, 481 

 indianolensis, 473 



1767 



