, 422 



Verbascum blattaria, Linn. Moth mullein. 



thapsus, Linn. Mullein. 

 Verbena caroliniana ? Pigmy vervain. 



hastata, Linn. Vervain. 



urticifolia, Linn. Nettle-leaf vervain. 

 Vernonia nove-boracensis, Ww. Flat-top. 

 Veronica anagallis, Linn. Brook pimpernel. 



arvensis, Linn. Wall speedwell. 



beccabunga, Linn. 



scutellata, Linn. Scull-cap speedwell. 

 Viburnum acerifolium, Linn. Arrow-wood. 



oxycoccus, Pursh. Higli cranberry. 



pubescens, Pursb. 

 Vicia americana, Mubl. 



caroliniana, Walter. 



cracca, Linn. Tufted vetch. 

 Vitis aestivalis, Ms. Summer grape. 



riparia, Mx. Odoriferous grape. 

 Viola blanda, Ww. Smooth violet. 



canadensis, Linn. 



cucuUata, Alton. Blue violet. 



Muhlenbergiana, Genging. Slender violet. 



ovata, Nutt. 



pedata, Linn. 



*|)ubescens, Alton. Yellow violet. 



Tostrata, Muhl. Beaked violet. 



X. 



Xanthium strumarium, Linn. Clot-burr. 

 Xanthoxylum fraxineum, Ww. Prickly ash. 

 Xylosteum ciilatum, Pursh. Twin-berry. 

 Xyris caroliniana, Walter. Yellow-eyed grass. 



Z. 



Zizania aquatica, Lambert. Wild rice. Wild Oats. 

 Zizia aurea, Koch. Meadow parsnep. 



cordata, Koch. Alexanders. 



integerima, D. C. 



