401 



Aspidium asplenoides, Linn, 

 bulbiferum, Ww. 

 filix-femina, Ww. 

 intermedium, Miihl. 

 nove-boracensis, "Ww. 

 thelypteris, Ww. 

 Asplenium angustifolium, Mx. 



thelypteroides, Mx. Silvery spleenwort. 

 Aster acuminatus, ( ?) Mx. 

 corymbosus, Aiton. 

 diversifolius, Mx. ( ?) 

 laxus, Ww. 

 paniculatus, Aiton. 

 salicifolius, ( ?) Pursh. 

 sericeus, Nutt. 

 tradescanti, Ww. 

 Astragalus canadensis, Linn. Milk vetch. 

 Atberopogon apludoides, Mubl. Beard-grass, 



B. 



Baptisia alba, Ww. 



tinctoria. Brown. Wild indigo. 

 Batschia canescens, Mx. Puccoon. False bugloss. 

 Betula excelsa, Aiton. Yellow birch. 



glandulosa, Mx. Scrub birch. 



papyracea, Ww, Paper birch. Canoe birch. 

 Bidens Beckii, Torrey. Water marigold. 

 Bidens cernua, Linn. 



frondosa, Linn. Burr marigold. Cuckold. 



petiolata, Nutt. 

 Blephilia ciliata, Rafinesque. 



hirsuta, Rafinesque. 

 Blitum virgatum, Linn. Slender blite. 

 Botrychium fumaroides, Ww. Grape fern. 



virginicum, Swartz. Rattlesnake fern. 

 Brachyelytrum aristatura, P. do B. False drop-grass. 

 Bromus ciliatus, Linn. 



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