GERARDIA. XCI. SCROPHULARIACE^E. 407 



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

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



11. V. SPICATA. Spiked Speedwell. Erect, tall; Ivs. petiolate, ovate-oblong 

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

 apex; roc. mostly solitary ; pedicels much 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. BUCHXEREJE. 



20. BUCHNERA. 

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



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

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

 upper alternate. Flowers in a terminal spike (sta. 4, included). 



B. AMERICANA. Slue-hearts. 



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

 spiked. 7J. In low grounds, N. Y. to Mo. and Ga. 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 the tube. Calyx half as long as tube of 

 corolla. Aug. 



TRIBE 10. GERARDIE^J. 



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

 Corolla tube dilated, limbs spreading, lobes flat, subregulaj. 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 Ivs. mostly opposite and incised.. Fls. yellow. 

 S. MACROPHYLLA. Nutt. Large-leaved Seymeria. 



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

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

 rate or entire ; cor. tube incurved, scarcely longer than the limb ; sty. short, di- 

 lated and slightly bifid at apex ; caps, ovate-acuminate. 1\. In woods, White 

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

 Dasystoma. Height, 4 6f. Lower leaves (5 7' by 2 3') lance-ovate in 

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

 Capsule a little shorter and broader. July. 



22. GERARDIA. 



Named by Linnaeus, 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 

 suffruticose. Lvs. opposite. F^s. axillary, solitary, purple or rose-color. 

 . 1. G. PURPUREA. Large-flowered Purple Gcrardia. 

 SL angular, much branched ; Ivs. linear, narrow, acute ; fls. subsessile, 

 scattered ; cal. segments subulate. (T) Found in wet pastures and swamps, N. 

 Eng. to 111. 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, axillary, often opposite, purple, on very short stalks. 

 Aug. 



35 



