10 



20 tradescanti W. 



21 undulatus W. amplexicaulis Mx. 



50 Atragene L. 4&wv^3 



■«% 1 americana Sims. Mount Holyoke. 



51 Atriplex L. 



1 patula L. Salt marshes. Boston. 



52 Azalea L. V 

 1 lapponica L. White Hills. "^ 



V 2 nudiflora L. Honeysuckle. 



3 procumbens L. White Hills. f\ 



)f4: viscosa S. White Honeysuckle. 4 



B. 



53 Baptisia Ventenant. 

 \^ L 



•HT 1 tinctoria R. Brown. pFiZd Indigo. 



54 Barbarea. R. Brown. 



1 vulgaris R. B. Erysimum barbarea L. Water Radish. 



55 Bartonia Muhl. 



1 paniculata Mx. Screwstem. 



56 Bartsia L. fj*J$*ftiAA. 



^ 1 coccinea L. Painted @up. 



2 pallida L. White Hills. 



57 Berberis L. / 



"Y* 1 vulgaris Mx. Barberry. 



58 Betula L. •* 



1 excelsa Ait. Yellow Birch. 



2 lenta W. BkcA; Birch. 



3 nana L. Dwarf Birch. White Hills. 



Si 



4 papyracea W. Canoe Birch. 



5 populifolia Ait. White Birch. 



59 Bidens L. 



1 chrysaothemoides W. Daisy Beggar Ticks. 



2 connata W. 



3 bipinnata L. Wallingford Ct. 



4 frondosa L. 



60 Blitum L. x - 



1 capitatum L. Strawberry Blitc. Rare. 



