Axonopus, 287 



affinis, 287 



compressus, 287 



furcatus, 287 

 Azalea, 1271 



canescens, 1272 



early-, 1274 



hoary-, 1272 



nudiflora, MIA 



oblongifolia, Mil 



viscosa, 1272 

 Azolla, 3, 9, 57, 564 



caroliniana, 59 



filiculoides, 59 



mexicana, 59 



Baccharis, 1367, 1369, 

 1606 



Emoryi, 1607 



glutinosa, 1607 



salicina, 1607 



sarothroides, 1606 



viminea, 1608 

 Bacopa, 1458 



acuminata, 1467 



caroliniana, 1458 



Monnieri, 1458 

 cuneifolia, 1458 



rotundifolia, 1461 

 Bag-pod, 1059 

 Bald cypress, 81 

 Bald rush. 489 

 Balsam, 1105 

 Balsam-apple, wild-, 1570 

 Bamboo-vine, 663 

 Barbara's-buttons, 1675 

 Barbarea, 981 



americana, 981 



orthoceras, 981 



vulgaris 



arcuata, 981 

 Barley, 215 



foxtail-, 215 



meadow-, 215 

 Barnyard grass, 329 

 Bartonia, 1329 



paniculata, 1329 



texana, 5, 1329 



verna, 1329 

 Basil, 1446 

 Bassia, 842 



hyssopifolia, 845 

 Bastard indigo, 1056 

 Bataceae, 868 

 Batatas, 1354 

 Batidaceae, 868 

 Batis, 868 



maritima, 870 

 Bay 



-gall bush, 5, 1099 



-laurel, 5 



red-, 961 



swamp-, 961 



sweet, 961 

 Bayberry family, 967 

 Beach morning glory, 1357 

 Beach panic, 320 

 Beak-rush, 467 

 Beaked sedge, 532 

 Beaked willow, 765 

 Bear-berry, 1560 

 Beard-tongue, 1487 

 Bearded 



grass-pink, 5, 719 



sprangletop, 253 



wheatgrass, 208 

 Beardgrass, bushy-, 338 

 Beardless wild-rye, 212 

 Beautyberry, 1395 



American-, 1395 



purple-, 1395 

 Beaver-poison, 1237 

 Beckmannia, 259 



Sysigachne, 259 

 Bedstraw, 1539 



bluntleaf-, 1540 



catchweed-, 1543 



dye-, 1542 



fragrant-, 1543 



stiff marsh-, 1542 

 Bee-plant 



Rocky Mountain-, 988 



yellow-, 988 

 Beech, blue-, 778 

 Beech family, 783 

 Beefsteak plant, 1434 

 Beggar-ticks, 1663, 1668 

 Belladonna, 1449 

 Bellflower, 1572 

 Belvedere, 845 

 Bent-awn plumegrass, 336 

 Bentgrass, 226 



autumn-, 231 



creeping-, 234 



redtop-, 231 



spike-, 234 



spring-, 228 



water-, 228 

 Bequilla, 1059 

 Bergamont, wild-, 1434 

 Bergia, 1145 



texana, 1145 

 Bermuda grass, 256 

 Bermuda-mulberry, 1395 

 Bertholetia sericea, 1637 

 Berula, 1234 



erecta, 1234 



pusilla, 1234 

 Besseya, 1489 



arizonica, 1490 



plantaginea, 1489 

 Betony, shade-, 1431 

 Betony, wood-, 1499 

 Betula, 778 



fontinalis, 779 



nigra, 779 



occidentalis, 779 

 Betulaceae, 777 

 Bidens, 1663 



aristosa, 1667 

 mutica, 1667 



aurea, 1664 



Bigelovii, 1672 



bipinnata, 1672 

 bipinnata, 1672 

 biternatoides, 1672 



cernua, 1667 



discoidea, 1668 



frondosa, 1668 



laevis, 1664 



leptocephala, 1671 



mitis, 1667 



Nashii, 1664 



pilosa, 1671 



polylepis, 1668 



tenuisecta, 1671 



tripartita, 1668 

 Bifora, 1365 

 Big 



-blue lobelia, 1580 



-cordgrass, 262 



-leaf avens, 1033 



-quaking grass, 192 



-red sage, 1433 



-shellbark hickory, 777 

 Bigtree hawthorn, 1020 

 Bilderdykia 



Convolvulus, 813 



cristata, 813 

 Bilsted, 1012 

 Bindweed, black-, 813 

 Bindweed, hedge-, 1353 

 Birch, 778 



family, 777 



river-, 779 



water-, 779 

 Bishop's-weed, mock-, 1243 

 Bistorta vivipara, 817 

 Bitter 



-bloom, 1315 



-cress, 967 



-cress, hairy-, 968 



-dock, 805 



-pecan, 775 

 Bitternut hickory, 775 

 Black 



-alder, 1098 



-bindweed, 813 



-currant, 1010 



1742 



