VKRBENACE.E. (VEBVAIN FAMILY.) 369 



flowers flesh-color. — Dry pine barrens, Florida to South Carolina, and west 

 ward. August — Stem 4' -6' high, shorter than the spikes. Leaves l'-2' 

 long. Nutlets tardily separating. 



•1- -1- Leaves pinnatijid. 



8. V. oflBcinalis, L. Stem smoothish, erect, branching ; leaves lanceo- 

 late or oblong, pinuately lobed or toothed, narrowed and entire near the base, 

 sessile, pubescent beneath ; spikes linear or filiform, pauicled ; bracts shorter 

 than the calyx ; flowers purple. — Waste ground, chiefly in the upper dis- 

 tricts. Introduced. July- August. — Stem 1°- 3° high. 



9. V. bracteosa, ]Michx. Hirsute and hoary ; stems numerous, pros- 

 trate, diffuse ; leaves small, pinnately toothed or lobed, oblong, narrowed into 

 a petiole ; spikes terminal, dense ; bracts linear, entii-e, spreading, much longer 

 thau the flowers, the lower ones recurved ; flowers purple. — Waste ground, 

 and along roads. August. — Stems 4' - 6' long. Spikes 3' - 6' long. Leaves 

 6" -9" long. 



10. V. XUtha, Lehm. Hirsute; stem l<=-2° high ; leaves oblong-ovate, 

 coarsely toothed, or some 3-parted ; spikes long, filiform, densely flowered, the 

 subulate bracts little exceeding the calyx ; corolla blue. — Roadsides, Georgia, 

 and westward. 



3. STACHYTARPHA, Vahl. 



Calyx tubular, compressed, 5-toothed. Corolla salver-shaped, 5-cleft, hairy 

 in the throat. Stamens 4, didynamous, the upper pair sterile. Ovary 2-celled. 

 Stigma capitate. Fruit of two 1-celled 1-seeded nutlets. — Herbs or shrubs, with 

 4-angled forking stems, and opposite imdivided leaves. Flowers in straight 

 and rigid spikes, sunk in excavations of the thickened rachis, and covered by 

 the imbricated bracts. 



1. S. Jamaicensis, Vahl. Herbaceous, smoothish; stems ascending; 

 leaves oblong, coarsely serrate, tapering into a slender margined petiole ; 

 spikes linear, terete, elongated ; bracts lanceolate, acuminate, appressed, with 

 scarious rough margins; flowers small, blue. — South Florida. — Leaves 2' -4' 

 long. Spikes 8'- 12' long. 



4. LIPPIA, L. 



Calyx tubular, membranaceous, 2-4-toothed. Corolla tubular- funnel- 

 shaped, somewliat bilabiate, 5-cleft. Stamens 4, didynamous, included. "Ovary 

 2-celled, 2-ovuled. Style short: stigma obliquely capitate. Fruit of two 1- 

 seeded separable nutlets. — Herbs, with 4-angled stems, opposite or whorled 

 simple leaves, and small flowers in dense spikes or heads. 



1. L. nodiflora, Michx. Stem creeping, finely pubescent, the flowering 

 branches erect ; leaves obovate, oblong, or lanceolate, rough, tapering and 

 entire below the middle, serrate above ; heads dense, globose in flower, oblong 

 or cylindrical in fruit, on axillary peduncles which are 2-3 times as long as 

 the leaves; flowers white or purple. — Damp soil, chiefly near the coast. 

 May - Sept. — Flowering stems 6' - 1 2' high. Leaves 1' - 2' long. 



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