308 YKKBENACE^E. (VEKVAJN FAMILY.) 



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 undivided leaves. Flowers in straight and 

 rigid spikes, imbedded 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, oppressed, 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-sbaped, 

 somewhat bilabiate. 5-cleft. Stamens 4, didynamous, included. Ovary 2-celled, 

 2-ovuled. Style short: stigma obliquely capitate. Fruit of two 1 -seeded sepa- 

 rable 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 

 haves; flowers white or purple. (Zapania nodiflora, Loin.) — Damp Bandy 

 soil near the coast, Florida to Mississippi, and northward. ' May - Sept. — 

 Flowering stems 6'- 12' high. Leaves 1' long. 



5. LANTANA, L. 



Calyx minute, slightly 4-toothed. Corolla bilabiate ; the upper lip notched 

 or entire ; the lower 3-lobcd. Stamens 4, didynamous, included. Style short : 

 Btigma oblique. Fruit fleshy or berry-like, of two mostly rugose or tubcrculate 

 L-seeded nutlets, enclosed in the enlarged membranaceous calyx.— Shrubs, with 



Simple rugose Berrate leaves, and axillary pcdunclcd capitate bractcd (lowers. 



1. L. involucrata, L. Var. Floridana. Stem much bran, bed, pu- 

 bescent; leaves small (|'-1'), oval or obovate, crenate, rounded at the apex, 

 densely pubescent when young, at length rough above, contracted into a Blender 

 petiole; peduncles 2-8 times as long as the leaves, the upper ones corymbose.; 

 beads small, bracts ovate, as long as the tube of the small (2" -.1") white? 



COIollfl ; the outer ones empty and narrower, involuerate. — South Florida. 



2. L. Camara, L. Stem pubescent, hirsute, or spiny; leaves ovate- 

 oblong, acuminate, crenate, short pedoled, rerj rough above, pubescent beneath; 

 peduncles as long as the leaves; bracts lanceolate, half as long as the tube of die 



yellow corolla; involucre none. — St. Mary's, Georgia, Elliott. June-Nov. — 

 Shrub 2° -4° high. Leaves 2' long. 



