LABIATAE 273 



Calyx-lobes triangular : leaf-blades crenate-dentate. 8. M. arvensis. 

 Calyx-lobes subulate : leaf-blades serrate. 



Calyx-lobes ciliate ; tube glabrous. g. M. gentilis. 



Calyx-lobes and tube more or less pubescent. 

 Stem pubescent with reflexed hairs : leaves closely pubescent. 



10. M. sativa. 

 Stem pubescent with spreading hairs : leaves glabrous or nearly so. 



11. M. Canadensis. 



1. Mentha spicata L. Spearmint. (Man. p. 805 ; I. P. /. 3174.) 

 In moist fields or waste places, N. S. to Ont., Minn., Utah, Fla. and Kans. 

 Nat. from 'Bw..— Pennsylvania : Pikb ; Northampton ; Bucks ; Dei,a- 

 WARE ; Chester ; Lancaster ; Schdyi^kii,!, ; Coi<umbia ; Franklin ; 

 Huntington ; Erie ; Ai<i,egheny. 



2. Mentha piperita L. Peppermint. (Man. p. 805 ; I. F./.ji^j.) 

 In wet soil, N. S. to Minn., Fla. and Tenn.— Pennsylvania : Northamp- 

 ton ; Bucks; Dei,aware ; Chester ; Lancaster; Dauphin; Colum- 

 bia ; Franklin ; Huntingdon ; Erie ; Allegheny. 



3. Mentha longifolia (L.) Huds. Horse Mint. (Man. p. 805 ; I. 

 F- /• 3^77- ) In waste places. Conn, to Pa. and N. J. Nat. from Eu. 

 — Pennsylvania : Northampton ; Bucks ; Philadelphia. 



4. Mentha Totundifq}ia (L.) Huds. Round-lEavED Mint. (Man. 

 p. 805 ; I. F. / 3178.) In waste places, Me. to N. C, Tex. and Mex.— 

 Pennsylvania : Northampton ; Allegheny. 



5. Mentha alopecuroides Hull. Woolly Mint. (Man. p. 806; I. 

 '^■f-3179-) Along roadsides, N. Y., N. J. and Pa. to Mo. Nat. from 

 'B.vi.— Pennsylvania : Monroe ; Bucks ; Lancaster ; Lebanon ; Perry ; 

 Franklin. 



6. Mentha aquatica L. Water Mint. (Man. p. 806; I. P./. jiSo.) 

 In wet places, N. S. to Pa. and Ga. Nat. from Eu. — Pennsylvania : 

 Lancaster. 



7. Mentha crispa L. Crisp-lEaved or Curled Mint. (Man. p. 

 8o5; I. P. f. 3181,) In swamps and roadside ditches, N. Y., N.J. and 

 Pa. — Pennsylvania : Northampton ; Philadelphia. 



8. Mentha arvensis L. Corn or Field Mint. (Man. p. 806 ; I. 

 F./.S182.) In dry waste places, N. B. to N. Y., N. J., Pa. and Fla. 

 Also in Calif, and Mex. — Pennsylvania : Northampton ; Chester ; 

 Lancaster ; Dauphin ; Franklin ; Huntingdon ; Bedford ; Erie. 



9. Mentha gentilis L. Creeping or Downy Whorled 141NT. 

 (Man. p. 806; I. F.yi 3183.) In waste places and along streams, Me. to- 

 northern N. Y., N. J. and Pa. Nat. from Eu. — Pennsylvania : Monroe ; 

 Northampton ; Dauphin ; Lancaster. 



10. Mentha sativa L. Marsh Whorled Mint. (Man. p. 806 ; I. 

 P.f. 3184.) In waste places, N. S. to Pa. Nat. from Eu. — Pennsylvania: 

 Northampton ; Bucks ; Lancaster. 



11. Mentha Canadensis L- American Wild Mint. (Man. p. 806 ; 

 L F./. 318s.) In moist soil, N. B. to the N. W. Terr., B. C, Va., Kans., 

 N. Mex. and Nev. — Pennsylvania : Northampton; Bucks ; Delaware. 



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