LABIATAE . 267 



10. PRUNELLA L. 



1. PruneUa vulgaris Iv. Self-hbal. Heavall. (Man. p. 788 ; I. 

 v. /. jop8.) In fields, woods and waste places, throughout nearly the 

 ■whole of N. Am. Nat. from Eu. — Pennsylvania : Pike ; Monroe ; 

 Bucks ; DEtAWARE ; Chester ; Lancaster ; Franklin ; Erie ; 

 Allegheny. 



11. PHYSOSTEGIA Benth. 



1. PhysoBtegia Virginiana (L.) Benth. False Dragon-head. 

 {Man. p. 788 ; I. F./.j/oo.) In moist soil, Quebec to the N. W. Terr., 

 Via., l,a. and Tei:.— Pennsylvania: Lancaster, on the Susquehanna; 

 York ; Dauphin ; Luzerne ; Susquehanna ; Allegheny. . 



12. GALEOPSIS L. 



JLeaf -blades mainly linear or lanceolate : plant puberulent. i. G. Ladanum. 

 Leaf-blades mainly ovate : plant hispid. 2. G. Tetrahit. 



1. Galeopsis Ladanum L. RED Hemp-neTTlE. (Man. p. 790; I. F. 

 f. 3106.) In waste places, N. B. to Mich, and N. J. Adv. or nat. from 

 Eu. — Pennsylvania : Delaware. 



2. Galeopsis Tetrahit L. Hemp-nettle. (Man. p. 790; I. T. /. 

 .3107. ) In wet places, Newf. to Alaska, N. C. and Mich. Nat. from En. 



— Pennsylvania : Monroe ; Carbon ; Delaware ; Erie. 



13. LEONURXJS L. 



Leaf-blades lobed or parted. 



Leaf -blades 2-5-cleft, or the upper 3-cleft. i. L. Cardiaca. 



Leaf-blades deeply 3-parted, the segments cleft or incised. 



2. L. Sibiricus. 

 Leaf-blades toothed or incised-dentate. 3. L. Marrubiastrum. 



1. LeonuruB Cardiaca L. Motherwort. (Man. p. 790 ; I. F. f. 

 .3108.) In waste places, N. S. to N. C, S. Dak. and Kans. Nat. from 



Eu. — Pennsylvania : Pike ; Northampton ; Bucks ; Philadelphia ; 

 Delaware ; Chester ; Lancaster ; Franklin ; Huntingdon ; 

 Erie ; Allegheny. 



2. Leonurus Sibiricus L. Siberian Motherwort. (Man. p. 790 ; 

 I. F. /. 3109.) In waste and cult, soil. Pa. and Del. Nat. of eastern 

 Asia. — Pennsylvania : Philadelphia. 



3. Leonurus Marrnbiastrum L. Hoarhound MOTHERWORT. (Man. 

 jp. 790; I. F. f. 31/0.) In waste. places, N. J., Pa. and Del. Nat. from 

 Eu. — Pennsylvania : Philadelphia ; Delaware ; Chester. 



14. LAMIUM L. 



^pper stem-leaves with sessile or partly clasping blades, i. L. ampUxicaule. 

 Upper stem-leaves with petioled blades. 



Corolla 12-18 mm. long : leaf-blades not blotched. 2. L. purpureum. 



Corolla 20-27 mm. long : leaf-blades blotched. 3. L. maculatum. 



1. Lamiuim amplexicaule L. HenbiT. (Man. p. 791; I. F. / 3111.) 

 In waste and cult, ground, N. B. to Ont., B. C, Fla. and Ark. Nat. from 



