18 



Malionia aquifolium, 



May 1st to 10th 



Berberidacece. 



Holly-leaved Malionia 



Gardens. 



Pinacece. 



Picea canadensis, (Mill.) B. S. P. White Spruce. Lawns. 



Ahies, (L.) Karst. Norway " 



pungens, Colorado blue Spruce. 



Abies haUamea, (L.) Mill. Balsam Fir. 



Nordvianniana, Nordmann's Fir. 



Douglasii, Douglas's 



Larix laricina, (Du Roi), Koch. Am. Larch. 



liiitacefe. 



ZanthoxAjlum americanum, I\Iill. Prickly Ash. 



Ha ill am elcdaceie. 



Liquidambar styracifiua, L. Sweet Gum Tree. T. M. Stetson's lawn. 



May 10th to 20th 



liatnmu-iilacetB. 



Wild Columbine. 



Aquilegia canadensis, L. 



About rocks and ledges. 



vulgaris, L. Garden 



Rarely escaped from gardens. 



Ranunculus abortivus, L. Small-flowered Crowfoot. 



Woods along brooks; frequent. 



recurvatus, Poir. Hooked 



Wet w^oods; frequent, 

 bulbosns L. Bulbous Buttercup. 



Fields; common. 



acris, L. ^'"^ 



Fields, common; b. t. Sept. Nat. f. Eu. 



septentrionalis, Poir. Swamp 



Low, wet grounds; b. t. Oct. Nat. f. Eu. 



