206 KEY AND FLORA 



VI. LITHOSPERMUM L. 



Herbs, with, stout, usually reddish roots. Flowers appearing 

 axillary and solitary or else in leafy-bracted spikes. Corolla 

 funnel-shaped or salver-shaped, with or without folds or 

 appendages at the mouth of the tube ; the limb 5-cleft, its 

 divisions rounded. Stamens included in the corolla tube, the 

 anthers nearly sessile. Nutlets either smooth or wrinkled, 

 generally very hard and bony. 



1. L. arvense L. Corn Gromwell. A rough weed, about 1 ft. 

 high. Leaves narrowly lanceolate. Flowers inconspicuous, whitish, 

 in the upper leaf axils. Corolla hardly extending beyond the calyx, 

 without appendages in the throat. Nutlets rough or wrinkled and 

 dull. Sandy banks and roadsides ; naturalized from Europe. 



2. L. Gmelini Ilitchc. Hairy Puccoon. Rough-hairy, perennial, 

 1-2 ft. high. Corolla deep orange-yellow, with appendages in the 

 throat and clad with wool within at the bottom; flowers handsome, 

 peduncled, in a crowded cluster. Dry, open pine woods, in sandy soil. 



3. L. canescens Lehm. Puccoon, Indian Paint. Perennial; 

 clothed with soft hairs, 8-12 in. high. Flowers axillary and sessile. 

 Corolla appendaged, not woolly within, showy, orange-yellow. Banks 

 and open woods. 



4. L. angustifolium Michx. Xarrow-Leaved Puccoon. Peren- 

 nial ; rough, 6-18 in. high, from a deep root. Leaves linear, sessile, 

 acute or nearly so. Flowers pediceled in terminal leafy racemes of 

 two kinds, the earlier showy, bright yellow, with a corolla tube an 

 inch or more long ; the latter much smaller, jiale yellow, cleistoga- 

 mous, fruiting abundantly. Pedicels of the cleistogamous flowers at 

 length recurved. Nutlets ovoid, white, very smooth, slightly pitted. 

 In dry soil W. 



VII. ONOSMODIUM Michx. 



Mostly rough-hairy perennial herbs. Leaves sessile, entire, 

 with prominent veins. Flowers rather small, white, greenish 

 or yellowish, in leafy one-sided spikes or racemes. Calyx 5- 

 parted into linear divisions. Corolla tubular or tubular- funnel- 

 form, with 5 acute erect lobes. Stamens 5, perigynous, not 

 projecting from the corolla tube. Style thread-like, decidedly 

 projecting. Nutlets usually only 1 or 2, white, smooth and 

 shining. 



1. 0. virginianum A. DC. Stems rather slender, 1-3 ft. high, cov- 

 ered with rough, stiff bristles. Leaves oblong or oblong-lanceolate, 



