The Flora of the Cayuga Lake Basin 405 



5. A. cordifolius L. 



Dry fields, roadsides, thickets, and the horders of woods, in light noncalcareous 

 soils, rarely in clay gravels or in pure clay; common. Sept.-Oct. 

 E. Que. to Iowa, southw. to Ga. and Mo., including the Coastal Plain. 



6. A. Lowrieanus Porter. 



In situations similar to the preceding; frequent. Aug. 15-Sept. 



Dry Run, Spencer; top of North Spencer Hill; Cascadilla Glen; Beebe Lake; 

 Renwick slope ; Chickaree Woods, formerly ; Ringwood. 



Conn, to Ont., southw. to N. C. ; rare on the Coastal Plain. 



Plants with the leaves broader and more incised than in the typical form occur on 

 the Renwick slope. They are occasional only, and do not agree exactly with var. 

 incisus Porter. A. Lowrieanus and its variety have the appearance of hybrids 

 between A. cordifolius and A. laevis, which quite possibly is their true status. 



7. A. undulatus L. 



Dry fields and thickets, in sandy or gravelly sterile noncalcareous soils; common. 

 Sept.-Oct. 



On the more residual acid soils of the higher hills of the basin, along the shores 

 of Cayuga Lake, on ravine crests, and in the sandy country n. of the lake; rare or 

 absent in the McLean region and on the clays and richer soils back from the lake 

 shores. 



N. B. and N. S. to Minn., southw. to Fla., Ala., La., and Ark.; common on the 

 Coastal Plain, 



8. A. novae-angliae L. New England Aster. 



Damp fields, thickets, and roadsides, in the heavier soils, especially in clays, 

 alluviums, and clay-gravels; common. Sept. 10-Oct. 10. 



Scarce on the more residual soils of the higher hills of the basin, and on the 

 ravine crests and cliff crests along Cayuga Lake. 



Que. (?) and Me to Sask., southw. to S. C, Ala., Ark., Kans., and Colo.; infre- 

 quent or rare on the Coastal Plain. 



Gray's Manual credits this species to " chiefly calcareous grounds." A form with 

 rose-colored rays (forma roscus (Desf.) Britton, see Proc. Nat. Sci. Acad. Staten 

 Island 2, Nov., 1890) is frequent. A form with light blue flowers occurs at Union 

 Springs (D.), s. of Levanna (£>.), and "near Osmun's Sta." (£>.). 



9. A. laevis L. 



Dry banks, fields, and thickets, in sandy or gravelly noncalcareous soils ; common. 

 Sept.-Nov. 



Rare or absent in the McLean region and on the clays and richer soils of the 

 basin. 



Me. to Sask., southw. to Va., Ala., La., Mo., and Colo. ; infrequent on the Coastal 

 Plain. 



A probable hybrid of this species with A. undulatus was found on Thatcher Pin- 

 nacles. The species is variable in width of leaf, the form with broadest leaves 

 answering to var. amplifolius Porter. 



10. A. puniceus L. 



In marshes, swamps, and springy fields along streams, in rich black soils ; 

 common. Sept.-Oct. 



Newf. to Man., southw. to Ga., Tenn., Ohio, and Mich., including the Coastal 

 Plain. A plant primarily of the Appalachian wooded region. 



Hybrids of this with other species are not infrequent. Individuals with pinkish 

 flowers are occasional. The identity of Dudley's no. 467 has not been determined. 



