241 SCROPIIULARIACK.E. 



seeded, opening at the summit. — Tall perennials, with mostly 

 whorled leaves and dense spiked terminal racemes of white 

 flowers. 



1. L. ViRGlNlCA, Bentli. & Nutt. Virginia Speed weU. 



Stem Breot ; lea ves whorled in 4s to 7s, short petioled, lanceolate, acute or poiuted 

 finely serrate ; spikes panicled, crowded. 



Rich moist places, often cultivated. July. Stem 2 to 4 feet high, angular. Bim- 

 p'e. . Flowers nnmorous, white, nearly .sessile in long terminal and verticcllate, 

 fum terminal spikes. Capsule many -seeded. The root is medicinaL Culver's 

 Phytic. 



13. BUCHNERA, Linn. Blue-Hearts. 



In honor of J. G. Buchner, an early German botanist 



Calyx tubular, obscurely nerved, 5-parted. Corolla 

 salver- form,, with a straight or curved tube, and a nearly 

 regularly 5-cleft limb. Stamens 4, included, approximate 

 in pairs. Style club-shaped and entire at the apex.. Cap- 

 sule 2-valved, many-seeded. — Perennial rough-hairy herbs, 

 with opposite leaves or the uppermost alternate, and blue Jiowers in 

 terminal br acted spikes* 



1. B. Americana, L. Blue-Hearts. 



Rough-hairy; stem mostly simple and wand-like; lower leaves obovatc-oblong, 

 obtuse; upper ones oblong and lanceolate, sparingly and coarsely toothed, vein; ; 

 flowers in an interrupted spike; calyx longer than the bracts. 



Moi^t places. Juno — Aug. Stem 1 to 2 feet high. Leaves 2 to 3 inches long, 

 -"■ory rough, appressed to the stem. Flowers axillary and sessile, blue or purple. 

 Corolla 1 inch long, hairy. Stamens inserted 2 ;n the throat of the corolla and 2 

 in the middle of the tube. 



19. GERARDIA, Linn. 



In honor of John Gerard an English botanist. 



Calyx bell-shaped, 5-toothed or 5-cleft. Corolla bell- 

 shaped-funnel-form, swelling above, with 5 more or less un- 

 equal lobes, the 2 upper smaller .and usually more or less 

 united. Stamens 4, didynamous, included, hairy. Style 

 elongated, mostly enlarged and flattened at the apex. Cap- 

 sule ovate, pointed, many-seeded. — Erect branching herbs, 

 with the stem leaves opposite, or the tipper often alternate, and 

 showy. purple or yellow Jiowers often in racemes or spikes. 

 Seq. 1. Gerardia proper. Leaves linear ; flowers purple. Annual. 



1. O. PURPUREA, L. Purple Gerard 'id.. 



Upright, with long widely spreading rigid branches; leaves linear, acute, rough- 

 margined; flowers nearly sessile; calyx-teeth subulate. 



Swamps and low grounds. Aug. — Oct. Stem 1 to 2 feet high, rough on the 

 angles. Leaves % to 1 inch long, and nearly % inch wide, coiled up in drying. 

 Flowers large, axillary, often opposite, purple. 



