534 LAMIACEAE 



2. L. sibiricus L. In waste and cultivated soil: Pa. and Del. 



Naturalized from eastern Asia. 



Known in our area only near Philadelphia. 



3. L. Marrubiastrum L. In waste places: Pa. and Del. Native 



of Europe. 



Known in our area only in Philadelphia, Delaware and Chester 

 counties, Pa. The reported occurrence of this plant in New Jersey 

 is unsupported by specimens. 

 Leonurits glaucescens Bunge has been found as a waif near New York. 



15. Ballota L. 

 1. B. nigra L. In waste places: Mass. to Pa. Naturalized from 

 Europe. 



Rare as a weed in our area. 



16. Stachys [Tourn.] L. 



Leaves narrowed at the base, linear to linear-lanceolate or oblong. 

 Stem glabrous; leaves entire or nearly so. 

 Leaves linear, 2-5 mm. wide. 

 Leaves oblong to linear-oblong, 4-10 mm. wide. 

 Stem retrorsely hirsute; leaves serrate. 



Leaves slightly pubescent; calyx-teeth lanceolate. 

 Whole plant densely clothed with stiff appressed hairs. 

 Leaves cordate or truncate at the base, lanceolate to ovate. 

 Stem glabrous or nearly so. 

 Stem hirsute. 



Leaves all very short-petioled, lanceolate to oblong. 

 Leaves, at least the lower, slender-petioled. 

 Leaves lanceolate or ovate, not obtuse. 

 Leaves ovate, obtuse; a diffuse annual. 



I. S. hyssopifolia Michx. In fields and thickets: Mass. to Fla., 



Mich, and Va. 



Conn. Very rare and local in Windham, Hartford and New 

 Haven counties. 



N. Y. Not uncommon on L. I. and S. I., but not otherwise re- 

 ported. 



N. J. Along the Delaware in Camden, Burlington and Mercer 

 counties; Atlantic Co.; thence scattered north of the coastal 

 plain. 



Pa. Bucks Co. 



Tertiary, o: Cretaceous, very rare in the region of glacial terraces: 



Older Formations, scattered. 138-220 days. Sea level-1,000 ft. 



