May, 1921] The Figworts of Ohio 231 



Corolla-tube broadly dilated at the throat; lobes spreading, 

 stamens four, didynamous, included; filaments glabrous or 

 nearly so; anthers awnless, those of the shorter stamens much 

 smaller than the others. Seeds angled. 



1. Otophylla auriculata (Mx.) Small. Auricled Otophylla. 



Rough-hairy annual, with slender and usually simple stem, 1-2 ft. 

 high. Leaves 1-2 in. long, lanceolate or ovate-lanceolate, acviminate 

 at the apex, sessile, the lower leaves usually entire, the others entire 

 but commonly with a short, oblong-lanceolate lobe on each side at the 

 base. Flowers solitary in the upper axils, purple, sessile, about % in. 

 long, denselv puberulent outside, glabrous within. Filaments glabrous 

 or sparingly hairy; anther-sacs very unequal. In moist, open soil, low 

 grounds, and prairies. July-September. Ottawa County. 



1(). Buchnera L. Blue-hearts. 

 Erect, hispid or scabrous perennials or biennials, mostly 

 with opposite leaves and large, white, blue, or purple flowers in 

 dense, terminal, bracted spikes. Corolla salverform; tube 

 somewhat curved; lobes five, somewhat unequal, spreading. 

 Stamens four, didynamous, included; anther-sacs confluent. 

 Capsule oblong. Seeds numerous, reticulated. 



1. Buchnera americana L. Blue-hearts. 



Perennial; stem slender, stiff, hispid and rough, 1-23^ ft. high. 

 Leaves prominently veined, usually all opposite, the lower ones obovate 

 or oblong, obtuse, narrowed into short petioles or sessile, sparingly and 

 coarsely toothed, the upper ones lanceolate or linear-lanceolate, entire 

 or nearly so. Spike peduncled, 6-10 in. long in fruit; flowers mostly 

 opposite, about 1 in. long; subtending bractlets shorter than the calyx; 

 corolla purple, its lobes obovate, obtuse. Capsule oblique, a little 

 longer than the calyx. In sandy or gravelly soil. June-September. 

 Fulton County. 



17. Leptandra Nutt. Culver's-root. (Veronicastrum Heist.) 

 Tall, erect, perennial herbs, with verticillate or opposite 

 leaves. Flowers small, blue or white, in dense, spike-like 

 racemes. Calyx 4-parted. Corolla tubular or salverform, 

 four-lobed, only sHghtly two-lipped. Stamens two, much 

 exserted. Seeds numerous, oval, minutely reticulated. 



1. Leptandra virginica fL.) Nutt. Culver's-root. 



Perennial, with simple, erect stem, 2-7 ft. tall, glabrous or nearly so. 

 Leaves verticillate, or some of the uppermost opposite, lance-shaped, 

 finely serrulate, 3-6 in. long, ^-1 in. wide. The small, white or nearly 

 white flowers are in dense, spike-Hke racemes, 3-9 in. long. In woods, 

 thickets, and open places. June-Sei)tember. General. (Veronicastrum 

 virginicum (L.) Farw.) Rhizome and roots used officially as medicine. 



