LILIACEAE 233 



2. A. sibiricum L. In moist soil: Newf. to Alask., Me., N. N. Y., 



Pa., Mich., Wyo. and Wash. 



The Palisades of the Delaware River, Pike Co., Pa., a sandstone 

 region north of the moraine, with a growing season of about 145 

 days and an elevation of 500 ft. 



3. A. vineale L. In fields and meadows: Mass. to Ohio, Mo. and 



Va. Naturalized from Europe. 

 Locally abundant as a weed. 



4. A. carinatum L. Fugitive from Europe and in North America 



known only from Bucks Co., Pa., where it is a rare escape; 

 erroneously recorded from N. J. 



5. A. canadense L. In meadows and thickets: N. B. to Minn., 



Fla., La. and Colo. 



Conn. Throughout. , 



N. Y. Rare south of the moraine on L. I., frequent elsewhere and 



increasing northward, but apparently wanting in the Catskills. 

 N. J. Scattered from Gloucester to Middlesex counties, exclusively 



north and west of the pine-barrens, thence increasing and common 



northward. 

 Pa. Bucks, Philadelphia, Delaware and Chester counties. 



Tertiary, rare or perhaps wanting: Cretaceous scattered: Older 

 Formations, increasing northward at moderate elevations. 142-204 

 days. Sea level-1,000 ft. 



A. Schoenoprasum L. and A. cernuum Roth have both been reported as established 

 escapes. 



3. Lilium L. 



Flower or flowers erect; perianth segments narrowed into long 

 claws. 1. L. philadelphicum. 



Flowers drooping or spreading. 



Leaves finely roughened on the veins beneath. 2. L. canadense. 



Leaves perfectly smooth. 3. L. superbum. 



i. L. philadelphicum L. In dry woods and thickets: Me. to 

 Ont., N. Car. and W. Va. 

 Conn. Throughout, increasing northwestward. 

 N. Y. Throughout increasing northward ; rare south of the moraine 



on L. I. 

 N. J. Not definitely recorded from the pine-barrens; rare and 



local from Gloucester to Monmouth counties exclusively north 



and west of the pine-barrens, thence increasing and common 



northward. 



