INDEX. 
Page. 
... 680, B81, 682 
486, 
Bindweed_.___.-- eee eee 
black __..22-...- 22-22 -- 
Biological survey, lichens. wee eee 265 
mosses ____--. ----. 2 2-22. = 2 ---- 290 
Biotia orientalis _....._ 222.2. 22 eee. 833 
Birch _____. ---2 ee ee eee eee 43 
1) Fe) a Woe eee eee 7 
cherry - 
family 
sweet -..-.--.--------------- 
Birthwort family ._....--.-..---------. ---- 
Bishop’s weed, greater. - 
mock _---- 6) eee 
Nuttall’s --..__.-- Wo eee 
toothpick —......2 2-2-2... eee. 
Bitternut -.......--.. 
Bittersweet --____- (oe 
false_.-...2. 222 ee 
Bitterweed ____ 
Black rush ____- 
sampson _..-.---. 2-2-2222 02--- 
walnut... .--2 2-6. 
Blackberry - 
480 
649 
O48 
OD 
wee eee eee 46, 465 
D4, TAT, S10 
182 
799 
DAO, 541, 832 
541 
Black-jack 47,59, 60,68, 88,96, 98, 107, 112,472, 822 
forked-leaf._.-.....-- 471 
Blackroot ......-0 0-0-2220. oe ee 790 
Bladder nut, American... -. 
family__.. —- 605 
Bladderwort._.-..-~-.-- 49, 52, 80, 117, 729, 730, 731 
Blazing star _....-- _. T66, 767, 821, 822 
Jlechnum virginicum ._-..-.2 2-2... -------- 313 
Blephilia, catalogue 
ciliata ....------ 2222-22 . 
Bletia aphylla...... 2... -------------------- 
Blituam maritimwm — 020.002.222.202... ------ 488 
rubrune. wo eee eee 488 
Bloodwort family .......-......-----.---. 446 
Blue curls... .---.-------.---. ---- 2 =e T07 
flag o 02s ee eee ee week a 
Tass | Seen eee e ee eee ee orn R20, 8 
Canada. __..-----. --------. 
English ._..--.--- --- 
Kentucky -_---. -__- Woe ee 
in Tennessee Valley 
Texas _....- 2-22-2222 ---- 88 
Bluebell family .. a 
Blueberry - 
Blue-eyed grass 
Bluehearts 
Blue-jack -..-----...-- 
Bluets.-..---_.--- 
Boehmeria, catalogue _ 
us 
“50 
Co nee eee eee ee eee 728 
_--- $1, 96.112, 181,475, 822 
weeeeee eee. T37, 738 
eylindrica .-..--.-. 22-22. .--. 2... ---- 240 
nivea.... 2.222.222 oe eee eee eee eee 82 
tenacissima ._...----------------.-----. 828 
tenacissima ......-.----------- --.-.-.. 478 
Boerhavia, catalogue. __...__..-- -----.---- 
erect ___..-.----------------- 
hairy--.-..-------.-.------- 
Bois d’are____....-.. 
Bokhara clover. -- 
Boletineae 
Boletinus, catalogue. . _- 
Boletopsis__.....-..-.-------.. 
Boletus - 
catalogue __.__. ...-..-2-.-- ee ee eee 
214 
605 | 
605 | 
oe ee eee eee ee ee eee eee eee 151,216 | 
Boltonia, catalogue. .._. 
diffusa --.....-..-.-.- 
Boneset, climbing _____- 
false --202 2 
prairie false ___. ____ 
purple... 0-2. ....- 
upland _. 2.22222. 2-2-2222 eee 
Borage family -.....-.....---. - wee eee eee 
Boraginaceae —-. 02-00) o ee eee eee 
Boreal life region.....-.. 2222. 2222-222 eee 
Rorreria micrantha — 000000022022. ee ane 
parviflora. oc. 28.2220 ee - 
Borrichia, catalogue. ..-----9 2... eee 
frutescens | 
Botanical explor ‘ations 
tory wo eee e ee 
Botrychium, catalogue. 
gracile 
lunaroides ._....-_-. 
obliquum _...... 2... 
ternatin-lunaroides___. 
obliquum —o 0008. 
virginicum .. 
Botrypus lunaroides. __- 
Botrytis, catalogue. ___- 
Bottle brush grass __..-.-_ 2... 
Bouchea, catalogue .___- 
ehrenbergii. oo... 
Bouteloua, catalogue 
curtipendula ....... 
POUCOHLOSM@ oo 
Bovista, catalogue 
Bowman's root _....._-. 
Box 
elder ~__..2 222.228. 
family ._..---. 22-2... 
thorn __...-- 
aconitifolia ——.222 2. 
Brachychaeta, catalogue —... 22... - 
..-.---- 83,778 
vece ee eee eee eee 68, 
Brachyelytrum aristatun 
cordata oo ee 
sphacelata —-......- 
awned._....- --.. --- 
catalogue 
erectum___- 
Brachyris dracunculoides 
Brachystenion___. 2.2. 22+. 
Brachythecium —-..... - 
campestre 220.2... 
catalogue 
laetum _ 2... .222 222-22 --- 
Bovistella, catalogue ___.- 
of Alabama, his- 
Boykinia ooo. ee 
S oc sae eee 
oxycladon __--.--.- oe nee eee eee 
Bracken, Common ______---.-------.------- 
Bradburya, catalogue __...22.0--220 222. 
virginica. ......-.----------2. 02. ------ 
Brake, Chinese _._...-.---- ..-.-------- 
eypress _.......-----------. ------------ 
Brasenia, catalogue ____.---..--.--.------- 
peltata ...-..22. 0.22 -2--2--2----------- 
peltata ...2....2 2222.22 2 - =. -- = oe ee 
Brassica......-..-------- 
catalogue 
campestris ruta-baga 
oleracea... .-------- 
855 
Page, 
74, 121 
310 
310 
SH 
"599 
708 
778 
66, 83 
367 
367 
367 
74 
769 
698 
291 
292 
307 
523 
827 
151, 158, 241, 246 
