220 American Midland Naturalist Monograph No. 2 



12. Prunella L. — Selfheal 



P. vulgaris L. Carpenter-weed. Roadsides, waste places, fields, and open 

 woods, common. June-Oct. 



13. Leonurus L. — Motherwort 



1. Calyx much shorter than the corolla; lower leaves palmately 3-5-lobed; corol- 

 la purple, pubescent within, 9-10 mm. long; waste places, fields, roadsides, 

 and open woods, common; nat. from Eur. May-Aug L. cardiaca L. 



1. Calyx as long as the corolla; lower leaves coarsely toothed; corolla pink, 

 glabrous within, 7-8 mm. long; waste places, occasional; nat. from Eur. 

 June-Sept L. marrubiastrum L. 



14. Lamium L. — Dead-nettle 



1. Upper leaves sessile or clasping; early flowers cleistogamous; cult, ground 

 and waste places; nat. from Eur. Mar. -May. Henbit ...L. amplexicaule L. 

 1. All the leaves short-petioled. 



2. Corolla 2-2.5 cm. long; leaves marked with a whitish blotch; waste places, 

 occasional; nat. from Eur. Naperville, Moffatt in 1897; Geneva, Hig- 



gins. May-July L. maculatum L. 



2. Corolla 12-18 mm. long; leaves not blotched; waste places, occasional; 

 nat. from Eur. Apr. -May L. purpureum L. 



15. Stachys L. — Hedge-nettle 



1. Stem glabrous, or hispidulous on the angles. 



2. Leaves sessile or nearly so; angles of the stem retrorsely hispid. 



3. Calyx glabrous, or with a few bristles toward the base; leaves nearly 

 glabrous, lance-linear, narrowed at the base; moist ground, chiefly 

 in the n. half of 111. July-Aug. \_S. atnbigua (Gray) Britt., not Sm.} 



S. aspera Michx. 



3. Calyx villous; leaves lanceolate, pubescent; moist ground, not common. 

 July. [S. aspera sensu auth., non Michx.; S. tenuijolia var. aspera 



Fern.] S. hispida Pursh 



2. Leaves petioled; stem glabrous or merely with a few bristles on the angles; 

 calyx glabrous or nearly so at maturity; moist ground, common. July- 

 Sept. S. tenuijolia Willd. 



1. Stem retrorsely pubescent on the sides as well as the angles; leaves lanceo- 

 late, sessile or nearly so; calyx hirsute; moist ground, common. June-Sept. 

 [>S. palustris var. homotricha Fern.; S. anihigua sensu Epling, non Sm.] 

 S. homotricha (Fern.) Rydb. 



16. Salvia L. — Sage 



1. Corolla 1.5-2.5 cm. long; leaves mostly basal, lyrate-lobed or pinnatifid; 

 stem-leaves few, reduced; dry ground, rare; s. III. May- June ...S. lyrata L. 



1. Corolla 8-12 mm. long; stem more or less leafy, the leaves oval to linear, 

 entire to remotely serrate, 2-8 cm. long; dry gravelly soil, Peoria, Stark, 

 Cook, and Wabash counties; adv. from w. U.S. July-Sept. \S. lanceae- 

 folia Poir.; S. lanceolata Willd.] S. reflexa Hornem. 



