verbenacete. , 285 



unequal, 5-cleft. Stamens 4, included, (sometimes only 2.) 

 Fruit composed of 2 — 4 nucules. 



1. V. hastata Linn. : erect, tall ; leaves lanceolate, acuminate, snarply 

 or incisely serrate, lower ones lobed or subhastate ; spikes filiform, erect, 

 corymbose-paniculate, somewhat imbricate. 



Low grounds. Can. to Geor. W. to Miss. July, Aug. %. — Stem 3 — 5 feet 

 high, 4-sided, somewhat rough and hairy. Leaves large, rough. — Flowers small, 

 purple, in numerous spikes forming a large terminal panicle. 



Halbert-leaved Vervain. 



2. V. spuria Linn. : stem decumbent, branched, divaricate ; leaves la- 

 ciniate, much divided ; spikes filiform, loose ; bracts longer than the calyx. 



Sandy fields. N. Y. to Car. W. to Miss. Aug.— Oct. (T).-~Stem 1—2 feet 

 long, at length much branched. Flowers small, blue, in paniculate spikes, at 

 length scattered. Decumbent Vervain. 



3. V. urticcBfolia Linn. : erect, somewhat pubescent ; leaves ovate or 

 lance-ovate, acute, serrate, petiolate ; spikes fiUform, axillary and terminal ; 

 flowers distinct. 



Road sides. N. Y. to Car. W. to Miss. July, Aug. %.—Stem 2—3 feet 

 high, somewhat hairy. Flowers small, white tinged with purple, in filiform 

 spikes forming panicles. Common Vervain. 



4. V. angustifolia Mich. : erect, mostly simple ; leaves linear-lanceolate, 

 attenuate at the base, remotely toothed, with elevated veins ; spikes fifiform, 

 solitary, axillary and terminal, V. rugosa Willd. 



Sandy fields, N. Y, and Penn. W. to Miss. June — Aug. %. — Stem a foot 

 high, sometimes a little branched, hairy. Flowers blue, in terminal spikes. 



Narrow-leaved Vervain 



2 ZAPANIA. iam.— J^apania. 

 (In honor of Paul Anthony Zappa, an Italian botanist.) 



Calyx compressed, 2-parted. Corolla tubular, with the limb 

 unequally 5-lobed. Stamens 4, didynamous. Stigma peltately 

 capitate, oblique. Nucules 2, at first covered by an evanescent 

 pericarp. • ■ - 



Z. nodiflora Lam. : stem procumbent and rooting ; leaves ovate-wedge- 

 form and ovate-lanceolate, subsessile, serrate above ; spikes solitary, on 

 long filiform peduncles, forming conical heads. Z. lanceolata Pers. Ver- 

 bena nodijlora Linn. Lippia nodifiora Mich. 



Low grounds. Penn. to Car, W, to Miss. July. %. — Stem 6 — 8 inches 

 long, branching. Flowers bluish-white, in heads which are on peduncles 2 — 4 

 inches" long, ' Node-flowered Zapania. 



3, PHRYMA, Linn.— Loipseed. 



(Etymology unknown,) 



Calyx cylindric, 2 -lipped ; upper lip longer, trifid ; lower 



2-toothed. Corolla 2-lipped ; upper lip emarginate ; the lower 



much larger, flat, 3-lobed. Stamens 4, included. Pericarp 



thin and evanescent, with a single seed. 



