Gkhardia, XCI. SCROPIlULAllIACEiE. 407 



angled in fruit, segments ciliate at edge. Corolla smaller than the calyx, blue, 

 caducous. Capsule turgid, broader tlian long, 4-seeded, Mar, — May. 



11. V. sriCATA. Spi/:cd Speed ircll. — Erect, tall; Irs. pctiolate, ovate-oblong 

 or lanceolate, lower ones obtuse, crenate, upper acute, crenafe-serrate, entire at 

 apex; ?•«<:. mostly solitary ; pedicels n\uch shorter than the sepals; cal. mostly 

 hoary-pubescent. — 1[. Europe and Asia. A beautiful garden species with nu- 

 merous varieties. Flowers blue, roseate, &c. f 



Tribe 9. nUCHNEREyE. 

 20. BUCHNfiRA. 



Named by Linnaeus, in honor of J. G. Biichner, a German botanist, 1743. 



Calyx 5-tootlied ; corolla tube slender, limb flat, in 5 cordate, sub- 

 equal lobes ; capsule 2-valved. — Herbs with the lower Ivs. opposite, the 

 upper alternate. Floicers in a termmal spike [sta. 4, included). 



B. Americana. Dluc-hcarts. 



Lvs. ovate-lanceolate, denticulate, scabrous, 3-veined, sessile ; ^.s-. remotely 

 spiked. — % In low grounds, N. Y. to Mo. andGa. Stem 1 — 2f high, simple or 

 slightly branched, slender and terete, ending in a long, loose and somewhat 

 virgate spike of purple flowers. Leaves 1 — 2' long, very rough, appressed to 

 the stem. Flowers axillary and sessile. Stamens inserted, 2 in the throat of 

 the corolla, and 2 in the middle of t'he tube. Calyx half as long as tube of 

 corolla. Aug. 



Tribe 10. GERARDIEJE. 



Inflorescence centripetal, racemose. Leaves, at least the lower, opposite. 

 Corolla tube dilated, limbs spreading, lobes flat, subregular. Stamens ap- 

 proximating in pairs. 



21. SEYMERIA. Pursh. 

 Calyx deeply 5-cleft ; cor. tube short, dilated, 5-lobed, lobes ovate 

 or oblong, entire, equaling or longer than the tube ; sta. 4, subequal ; 

 valves of the capsule loculicidal, entire ; seeds 00. — Herbs erect, 

 branching. Cauline lvs. mostly opposite and incised. Fls. yellow. 

 S. macrophylla. Nutt. Large-leaved Sei/mcria. 



Erect, tall, sparingly pubescent; lvs. large, the lower deeply pinnatifid, 

 segments lance-oblong, incised, terminal one the largest, upper lanceolate, ser- 

 rate or entire ; cor. tube incurv^ed, scarcely longer than the limb ; 5///. short, di- 

 lated and slightly bifid at apex ; caps, ovate-acuminate. — % In woods. White 

 River Valley, la.! Ohio, Clark Ho Ark. The plant has much the aspect of 

 Dasystoma.' Height, 4 — (jL Lower leaves (5—7' by 2 — 3') lance-ovate in 

 outline, floral (2 — 3') mostly opposite. Corolla ^' long, very woolly within. 

 Capsule a little shorter and "broader. July. 



22. GERARD! A. 



Named by Linna-us, in honor of John Gerard, an English botanist of the 16th century. 



Calyx campanulate, briefly or narrowly 5-toothed ; cor. tubular, ven- 

 tricose or subcampanulate, tube longer than the 5 broad, entire lobes ; 

 sta. didynamous, in pairs, shorter than the corolla, anth. all equal ; 

 caps, obtuse, or briefly acuminate ; seeds 00. — American herbs, rarely 

 sujfruticose. Lvs. opposite. Fis. axillary, solitary, purple or rose-color. 

 1. G. purpurea. Large-fliwrrcd Purple Gcrardia. 



(S/. angular, much branched; lvs. linear, narrow, acute ;/5. subsessile, 

 scattered; cal. scgmcuts sx^hwX^Xe. — Found in wet pastures and swamps, N. 

 Eng. to III. and Ga. Stem slender, branching, erect, smooth, obtuse-angled, 1 

 — 2f" high. Leaves entire, roughish, 8 — 15" long, and about 2" wide, coiled up 

 in drying. Flowers large, axillarj'-, often opposite, purple, on very short stalks. 

 Aug. 



35 



