The Flora ok the Cayuga Lake Basin 363 



Townley Swamp. Apparently adventive from farther south. The introduction has 

 taken place since Dudley's Cayuga Flora was published. 



Cent. Me. to Minn., southw. to Fla., Kans., and Tex. ; rare or absent on the Coastal 

 Plain. 



2. P. virginianum (L.) Dur. & Jack. (P. lance olatutn of Cayuga Fl.) Mountain 



Mint. 



Dry open sandy soils; rare. July 15-Aug. 25. 



E. of Slaterville (W. IV. Rozvlee, H. H. Whetdel, & K. M. W.) ; n. bank of 

 Big Gully; rich woods, Utt Point (P. P. Mctcalf) ; sandy acid banks and on the 

 marl moor, Junius marl ponds (D. !). 



Cent. Me. to N. Dak., southw. to Ga., Ala., and Kans.; infrequent on the Coastal 

 Plain. 



3. P. incanum (L.) Michx. Hoary Mountain Mint. 



Dry scrubby fields and hillsides, in thin stony, almost noncalcareous, soils, 

 apparently with some clay ; often abundant in such localities. July-Aug. 



Hillsides, Coy Glen ; along the shore of Cayuga Lake from Fall Creek to Aurora 

 (DA). 



Mass. and Vt. to Ont., southw. to Fla., Ala., and Mo.; infrequent on the Coastal 

 Plain. 



19. Thymus (Tourn.) L. 

 1. T. Serpyllum L. Thyme. 



Dry sterile gravelly banks by roadsides and in old fields ; rare. July-Aug. 



"Tobytown Cemetery, Slaterville" (H. L. Stewart in C. U. Herb.) ; C. U. 

 campus, on the Fiske-McGraw (Chi Psi) grounds (D. in C. U. Herb.) and behind 

 Caldwell Hall ; for many years by the roadside just n. of Pleasant Grove Cemetery ; 

 beside the road between West Groton and Locke, 1881 (P. L. Kilbome). 



N. S. to N. Y. and N. C. Naturalized from Eurasia. 



20. Lycopus (Tourn.) L. 



a. Calyx teeth deltoid, shorter than the nutlets ; leaves not pinnatifid. 



1. L. uniflorus 

 a. Calyx teeth subulate, longer than the nutlets ; lower leaves pinnatifid. 



2. L. americanus 



1. L. uniflorus Michx. (L. virginicus of Cayuga Fl.) Bugle Weed. 



In open, grassy or sedgy, boggy or marshy soils, or on shores, apparently in 

 both calcareous and noncalcareous regions ; common. July 25-Sept. 



Newf. and Lab. to B. C, southw. to Va., Mich., Minn., Nebr., Wyo., and Oreg., 

 including the Atlantic Coastal Plain. Found also in Asia. 



In shady localities the leaves become larger and thinner (L. membranaceus 

 Bickn.). No material corresponding to L. virginicus L. or L. rubellus Moench 

 has been found in the Cayuga Lake Basin. 



2. L. americanus Muhl. (L. sinuatus of Cayuga Fl.) Water Horehound. 

 In situations similar to the preceding; common. June 25-Aug., rarely Sept. 

 Newf. to B. C, southw. to Fla., Tex., Utah, and Calif., including the Atlantic 



Coastal Plain. 



21. Mentha (Tourn.) L. 



a. Flowers in terminal spikes or clusters. 



b. Leaves sessile; spikes slender. 1. M. spicata 



b. Leaves petioled ; clusters ovoid or oblong. 2. M. piperita 



