16 



Wood Rush, 



Sweet Vernal Grass. 



White Willow. 



May 1st to 10th 



JTuncacece. 



Luzula campestris, (L.) D. C. 



Common in dry soil, 

 var. multiflora, (Ehrh.) Celak. 



Common in dry soil. 



GraminecB, 



Anthoxanthum odoratum, L. 



Meadows, &c. ; common. 



Salicacece. 



Salix alba, (L) 



A large tree common about dwellings. Introd. 

 var. vitellina, (L.) 



A large tree; common al)Out dwellings. Introd. 

 cordata, Muhl. Heart-shaped Willow. 



Wet places ; common, 

 rostrata, Richards. Beaked 



Moist or dry ground, 

 humilis, Marsh. Prairie 



Dry pastures, &c. ; common, 

 tristris. Ait. Dwarf gray 



Dry pastures, &c. ; common, 

 sericea. Marsh. 



Wet places; common. 



*petiolaris, Sm. 



nigra, Marsh. 



Babylonica, L. 



purpurea, L. 

 pentandra, L. 



Lunaria rediviva, L. 



Damp soil. 



Wet ground. 



Planted for ornament. 

 Purple Willow. 

 Bay-leaved Willow. 



Criiciferce. 



Escaped about gardens. 



Silky 



Petioled 



Black 



Weeping 



Lawns. 

 Lawns ; for ornament. 



Honesty. 



*Dr. E. L. Sturtevant. 



