*Smilacina bifolia, Ker. 



" racemosa, Desf. 



Asparagus officinalis, L. 

 Polvgonatum biflorum, Ell. 

 Veratrum viride, Ait. 



JUNE 



*Thalictrum Cornuti, L. 

 *Ranunculus Flammula, L. 



L. 



False Solomon's Seal 



Spikenard 



Asparagus 



Small Solomon's Seal 



White Hellebore 



" sceleratus 



" repens, L. 



Brasenia peltata, Pursh. 



Nymphaea odorata, Ait. 



*Arabis laevigata, D. C. 



Sisymbrium officinale, Scop. 



*Sinapis nigra. L. 



*Raphanus Raphanistrum, L. 



*Alyssum calycinum, L. 



*Lechea major, Mx. 



*Helianthemum Canadense 



*Drosera rotundifolia, L. 



* " longifolia, L. 

 ♦Hypericum perforatum. L. 



" ellipticum, Hook 



" Canadense, L. 



" Sarothra, Mx. 



Silene inflata, Smith. 



Pennsylvania 



" antirrhina, L. 



Stellaria longifolia. Muhl. 

 *Mollugo verticillata, L. 

 *Scleranthus annuus, L. 

 *Malva rotundifolia, L. 



* " crispa, Gray. 



* " sjlvestris. L. 

 *Impatiens fulva, Nutt. 

 *Oxalis stricta, L. 



" violacea, L. 

 *Rhus tvphina, L. 



* •• glabra. L. 



* " venenata, D. C. 



Toxicodendron, L. 

 Vitis Labrusca. L. 



* " aestivalis. Mx. 

 Ampelopsis quinquefolia. Mx 

 *Ceanothus Americanus, L. 

 *Trifolium agrarium, L. 



* " medium, L. 



Meadow Rue 

 var. reptans, Grav. 

 Small Marsh Crowfoot 

 Cursed " 



Buttercups 



Water Shield 



Pond Lilv 



Sickle Pod 



Mustard 



Radish 

 Alyssum 

 Pinweed 

 Mx. Rock Rose 



Round-leaved Sundew- 

 Long •• " 



St. John's Wort 



Pine Weed 



Bladder Campion 



Mx. Wild Pink 



Sleepy Catchfly 



Stitchwort 



Carpet Weed 



Knawel 



Mallows 



Touch-me-not 

 Wood Soirel 

 Violet 



Staghorn Sumach 



Smooth " 



Poison Dogwood 



Ivv 



Fox Grape 



Summer 



Virginia Creeper 



Jersey Tea 



Yellow Clover 



