266 SCROPHULARIACE^. 



Shady rocks. N. Y. and Penn. March, April. (T).—Slem slender, 4—10 

 inches long, somewhat pubescent. Peduncles longer than the leaves. Cordla 

 shorter than the calyx. Ivy-leaved Speedwell. 



14. LEPTANDRA. AVW.— Leptandra. 



(From the Greek Xfjrroj, slender, and avnp, av^pos, a man ; in allusion to the 

 stamens.) 



Calyx 5 -parted ; segments acuminate. Corolla tubular-cam- 

 panulate ; border 4-lobed, a little ringent, the lower segment 

 narrower. Stamens 2, and with the pistil at length much ex- 

 serted. Capsule ovoid, acuminate, 2-celled, many-seeded, open- 

 ing at the summit. 



L. Virginica Nutt. : stem erect ; leaves whorled in fours or fives, lanceo- 

 late, serrate, petiolate; spikes aggregated. Vermiica Virginica Linn. 

 Paderota Virginica Torr. 



Woods. Can. to Car. W. to Miss. July, Aug. 'U^.—Stem 2—4 feet high, 

 angular, smooth, simple. Leaves slightly pubescent beneath. Flowers white, 

 in long dense terminal spikes. The root is cathartic and diaphoretic. 



Culverts Physic. 



III. BuCIIiNERE.E. 



15. BUCHNERA. Z^iVm.— Buchnera. 

 (In honor oi John Gottfried Buchner, a German botanist.) 

 Calyx tubular, shortly 5-toothed. Corolla somewhat salver- 

 form ; tube slender ; limb almost equally 5-lobed ; the lobes 

 oblong or obovate. Stamens 4, didynamous. Capsule straight, 

 2-celled, opening elastically. 



B. Americana Linn. : hairy-hispid ; stem simple ; leaves lanceolate, ses- 

 sile, somewhat t K)thed, scabrous and hairy ; spike long, with the flowers 

 at length remote. 



Sandy places. N. Y. to Car. W. to Miss. July. ^.— Stem 12— 18 inches 

 high. Leaves 3-nerved, opposite, sessile. Flowers blue. The plant blackens by 

 drying. Blue Hearts. 



IV. Gerardie^s. 



16. GERARDIA. Lin/n.—Gerardia. 

 (In honor of John Gerard, an old English botanist.) 



Calyx campanulate, 5-toothed or 5- cleft. Corolla tubular- 

 funnel-form or somewhat campanulate ; the border unequally 

 5-lobed, the lobes broad and entire. Stamens 4, didynamous, 

 included. Capsule obtuse or shortly acuminate ; the valves cori- 

 aceous, usually entire. Seeds numerous. 



