308 verbenace.t;. (v::kvaix iamily.) 



3. STACHYTARPHA, Vahl. 



Calyx tuhiihir, compressed, 5-tootlied. Corolla salvcr-sliapcd, 5-c.lcft, hairy 

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

 Stigma capitate. Fruit of two 1-eellcd 1-sceded nutlets. — Herbs or shrubs, with 

 4-anj:led forking stems, and opposite undivided leaves. Flowers in straight and 

 ri^id spikes, imheildcd in excavations of the thickened rachis, and covered by 

 the imbricated bracts. 



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

 leaves obluiig, coarsely serrate, tapering into a slender margined petiole ; spikes 

 linear, terete, elongated ; bracts lanceolate, acuminate, appresscd, with scarious 

 rough margins; (lowers small, blue. — South Florida. — Leavc§ 2' -4' long. 

 Spikes 8'- 12' long. 



4. LIPPIA, L. 



« 

 Caly.x tuljular, membranaceous, 2-4-tootlicd. Corolla tubular-funnel-shaped, 

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

 2-ovuled. Stylo 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 tho 

 leaves; flowers Mliitc or purple. (Zapania nodiflora, Lnm.) — Damp sandy 

 soil near the coa-t, Florida to Mississippi, and northward. May - Sept — 

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



5. LANTANA, L. 



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

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

 stigma oblique. Fruit fleshy or berry-like, of two mostly rugose or tul)crculate 

 1-scedcd nutlets, enclosed in the enlarged membranaceous calyx. — Shrubs, with 

 simi)le rugose serrate leaves, and axillary pedunclcd capitate bractcd flowers. 



1. L. involucrata, L. Var. Floridana. Stem mudi branched, pu- 

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

 densely ])ubescent when young, at length rough above, contracted into a slender 

 petiole; peduncles 2-3 times as long as the leaves, the upper ones corymbose; 

 heads small; bracts ovate, as long as the tube of the small (2" -3") white? 

 corolla ; the outer ones eni])ty and narrower, involucrato. — South Florida. 



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

 objong. ncumiiiatc, crenate, short-petioled, very rough above, pubescent beneath; 

 pedimcles as long as the leaves; bracts lanceolate, half as Innu: as the tube of the 

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

 Shrub 2° - 4° high. Leaves 2' long. 



