44 SCROPHULARIACE^. P^derota. 



13. P^DEROTA. Linn. ; Endl. gen. 3980. pmderota. 



LePTANOKA, NuU.; CALLISTACHTi, Rof. 



[An ancient name of a species of Acanthus, applied by Linnieus to this genus.] 



Calyx 5-parted. Corolla tubular ; the limb unequally 4 - S-lobed, or somewhat 2-lipped. 

 Stamens 2, inserted into the upper part of the corolla, exserted : anthers 2-celled. Capsule 

 OToid, acute, 2-celled, loculicidal ; the valves at length 2-cleft. Seeds numerous, obovoid 

 or terete. — Leaves opposite or verticillate, serrate. Flowers in terminal spikes. 



1. PiEDEROTA ViRGiNiCA. Culvers PJiysic. 



Stem erect ; leaves verticillate, mostly in fours and fives, lanceolate ; spikes aggregated ; 

 flowers unequally 4-lobed. — Veronica Virginica, Linn. sp. I. p. 9 ; Michx. fi. \. p. 5 ; 

 Pursh, jl. 1. p. 10; Ell. sd. 1. p. 10. Leptandra Virginica, Nutt. gen. \. p.l ; Torr. 

 fl.l.p.U; Bigel.fl. Bost. p. 6 ; Beck, hot. p. 263 ; Darlingt.fl. Cest. p. 6. Callistachya 

 Virginica, Raf. in. med. repos. 5. p. 60. 



Perennial. Stem strict, simple, 2-4 feet high, smooth. Leaves sometimes as many as 

 six, and rarely only three, 2 or 3 inches long, tapering to a long sharp point, acutely serrate, 

 smooth above, pubescent on the veins underneath. Flowers sessile, in long spikes, of which 

 the principal one terminal ; the others clustered and verticillate in the upper part of the stem. 

 Corolla white, pubescent inside. Stamens much longer than the corolla, at length diverging : 

 anthers cordate, whitish. Style finally exceeding the stamens : stigma capitate, somewhat 

 2-lobed. Capsule acuminate, opening about half way down by four teeth. Seeds numerous, 

 obovoid, compressed. 



Rich low grounds ; rather common. July. The root is cathartic and diaphoretic, and has 

 obtained some reputation as a domestic medicine. It is sometimes called Culver' s-root. (See 

 Wood 4" Bache, U. S. Dispens, p. 688.) 



Tribe VII. GERARDIEJE. Benth. 



Corolla campanulate, funnel-form or tubular ; the limb b-cleft, with flat rounded lobes. 

 Stamens four, all fertile and ascending. A nthers 2-celled ; the cells distinct, often 

 acuminate. Capsule either loculicidal or septicidal. Seeds usually with a loose re- 

 ticulated testa. 



14. GERARD! A. Linn. ; Benth. in Hook. comp. bot. mag. 1. p. 204 ; Endl. gen. 3996. 



GERARDIA. 

 [ In honor of John Gerard, an old English botanist, author of "A General History of Plants."] 



Calyx campanulate, 5-toothed or 5-cleft. Corolla somewhat campanulate ; the border unequally 

 5-lobed ; the segments rounded, flat, partly spreading, entire. Stamens 4, didynamous, 



