8. Onosmodium. Corolla tubular, unappendaged, its erect lobes acute.
[++][++] Scar large and excavated.
9. Symphytum. Corolla oblong-tubular, enlarged above and closed by 5 scales.
[*][*] Corolla irregular, limb and throat oblique and lobes unequal.
10. Lycopsis. Corolla-tube curved, closed with hispid scales. Stamens included.
11. Echium. Dilated throat of corolla unappendaged. Stamens unequal, exserted.
Asperùgo procúmbens, L., a European annual, well marked by its much enlarged membranaceous and veiny fructiferous calyx, has sparingly appeared in waste grounds about New York and Philadelphia, and at Pipestone, Minn.
1. HELIOTRÒPIUM, Tourn. Tournsole, Heliotrope.
Corolla salver-form or funnel-form, unappendaged, more or less plaited in the bud. Anthers nearly sessile. Style short; stigma conical or capitate. Fruit 2–4-lobed, separating into 2 indurated 2-celled and 2-seeded closed carpels, or more commonly into 4 one-seeded nutlets.—Herbs or low shrubby plants; leaves entire; fl. in summer, white (in our species). (The ancient name, from ἥλιος, the sun, and τροπή, a turn, with reference to its flowering at the summer solstice.)
§ 1. HELIOTROPIUM proper. Fruit 4-lobed, separating into four 1-celled 1-seeded nutlets. Style short.