KEY TO THE SPECIES Yl 



5. PRUNELLA (Self-heal) 



Low herbs with clusters of flowers sessile in axils of round membranaceous 

 floral leaves and forming a close spike or head, tubular-bell-shaped veiny 3 lipped 

 calyx (upper lip broad and flat, truncate, with 3 short teeth, lower 2-cleft), 2-lipped 

 corolla, the entire upper lip erect and arched, lower lip 3-clef t and reflexed-spread- 

 ing (middle lobe rounded and toothed), and 4 stamens with anthers approximate in 

 pairs. 



1. Prunella vulgaris L. Leaves ovate-oblong, entire or toothed, petioled, 

 hairy, or smooth ; corolla violet or flesh-color (rarely white), not twice the length 

 of the purplish calyx. Woods and flelds. 



6. SCUTELLARIA (Skullcap) 



Small perennial herbs with solitary axillary flowers, 3-lipped corolla, inner 

 pair of stamens 2-celled, the outer 1-celled and cihate, and the nutlets papillose or 

 tuberculate. 



1. Scutellaria Brlttoni Porter (Britton's Skullcap). Glandular-pubescent 

 perennial, from rhizomes, branched from the base, 5-30 cm. high ; leaves oval tc 

 oblong, mostly sessile, obscurely crenulate, noticeably veined below, longer than 

 the internodes ; corolla pubescent with enlarged throat, blue. Frequent ; sandy 

 banks and draws. 



7. PHYSOSTEGIA 



Erect glabrous perennial herbs with purple flowers in a bracteate spike, pubes- 

 cent filaments and smooth ovoid nutlets. 



1. Fhysostegia parviilora Nutt. (Westekn Lion's Heart). Stems 2-5 dm. 

 high, generally simple and rather slender ; leaves narrowly ovate to lanceolate, 

 callous-denticulate or serrate ; bracts ovate, shorter than the calyx which be- 

 comes inflat«d-globular in fruit ; corolla showy, purple, much exceeding the calyx. 

 Margins of ponds and streams. 



8. STACHYS (WouNDWOKT) 



Ours a hirsute perennial with the flowers in axillary capitate-verticils forming 

 an interrupted spicate-inflorescence, the corolla purple, with slender tube, stamens 

 paired and approximate, and the nutlets smooth. 



1. Stachys palustris L. (Marsh Woundwort). Pubescent, hirsute or hispid, 

 2-7 dm. high ; leaves ovate to lanceolate, crenate-dentate, 4-8 cm. long, nearly or 

 quite sessile ; flowers crowded ; corolla purple, its tube scarcely exceeding the 

 calyx-teeth. Wet bottom lands. 



LX. SOLANACEiE (Nightshade Family) 



Herbs (rarely shrubs) with alternate leaves, regular 5-parted 

 sympetalous flowers, 5 stamens on the corolla, a single style, 

 and a 2-celled ovary becoming a many-seeded pod or berry. 



» Fruit a fleshy berry, corolla wheel-shaped. 



1. Solanum. (!alyx unchanged in fruit, anthers connected into a cylindrical 

 cone and opening by a terminal hole. 



