124 SCROPHULARIACEAE. 



G. virginiana L. Stem 4-7 inches high, much-branched, glandular-puber- 

 ulent; leaves oblong or oblong-lanceolate, remotely toothed; peduncles slen- 

 der, as long as the leaves; bracts leaf-like, equaling the calyx; flowers white 

 or pale yellow; sterile filaments minute or wanting. Low grounds, fields 

 and woods; June-August; frequent; Winneshiek, Fayette, Johnson, Musca- 

 tine, Henry, Appanoose, Wayne, Decatur, and Ringgold counties. 



ILYSANTHES Raf. Annuals, with opposite sessile leaves, and small pur- 

 plish axillary flowers on slender naked pedicels. Calyx 5-parted, divisions 

 nearly equal. Corolla 2-lipped; upper lip erect, 2-lobed, lower spreading 

 3-cleft. Fertile stamens 2; sterile stamens 2, forked, one division glandular. 

 Stigma 2-lobed. Capsule ovate or oblong, about equaling the calyx, many- 

 seeded. 



I. riparia Raf. Stem 3-7 inches high, branched, spreading or erect; leaves 

 ovate, ovate-oblohg, or the lower obovate, obscurely toothed. River banks, 

 July-August; frequent; Fayette, Johnson, Van Buren, Decatur, Ringgold, 

 Emmet. Chickasaw, and Sioux counties; reported from Muscatine, Story, and 

 Woodbury counties. (I. gratloloides (L.) Benth.) 



VERONICA L. Speedwell. Annual or perennial herbs, with opposite 

 alternate or verticillate leaves, and solitary racemose or spicate flowers. 

 Calyx usually 4-parted. Corolla rotate or salverform, usually 4-lobed, rarely 

 5-lobed; lower segments usually narrow. Stamens 2, exserled. Style slen- 

 der; stigma capitate. Capsule flat or compressed, obtuse or obcordate, many- 

 seeded. 



* Perennials; leaves verticillate; flowers in terminal spikes. 



V. virginica L. Culver' s-root. Stem 2-fi feet high, smooth or somewhat 

 downy; leaves 3-6 in a, whorl, lanceolate, short-petioled, pointed, serrate; 

 flowers in terminal panieled spikes; parts sometimes in 5's; corolla small, 

 white or bluish; stamens and style much exserted; capsule oblong, obtuse. 

 Woods and prairies; July-August; common. (Leptundra virginica (L.) Nutt.) 

 * * Perennials; flowers in axillary racemes. 



V. anagallis L. Water Speedwell. Stems fleshy, l foot high, smooth, de- 

 cumbent and rooting, then erect; leaves opposite, sessile," clasping entire; 

 racemes from opposite axils; flowers small, corolla bluish; capsule orbicular, 

 slightly notched. Springs and brooks; June-July; frequent; Einmet, Winne- 

 shiek, Allamakee, Louisa, Johnson. Lyon, Winnebago, and Appanoose coun- 

 ties; reported from Fayette and Story counties. ( V. anayallis-aquatica L.) 



V. amcricana Schwein. Similar to the preceding, stoloniferous, glabrous; 

 stem branched, decumbent; leaves ovate, oblong, or oblong-lanceolate, peti- 

 oled, serrate, bases truncate, rounded, or subcordate, apex acutish or obtuse. 

 Swamps and streams; April-September; reported from Lee county. 

 * * * Annuals; flowers solitary in Vie axils of the leaves. 



V. peregrina L. Stem 4-10 inches high, smoothish, ascending, branched; 

 lower leaves petioled, oval-oblong, toothed, upper sessile, oblong-linear, en- 

 tire; flowers short-pedicelled. solitary; corolla white, shorter than the calyx; 

 capsule obcordate. Moist soil; May-September; common; Winneshiek. John- 

 son, Henry, Lee, Decatur, Dallas, and Shelby counties; reported from Fay- 

 ette, Scott, Muscatine, and Story counties. 



V. arvensis L. Corn Speedwell. Stem hairy, 3-9 inches high, simple or 

 diffusely branched; lower leaves petioled, ovate, crenate, the upper sessile, 

 ovate or lanceolate, entire; flowers very small, axillary; capsule obovate, ob- 

 cordate. Grassy places in a cultivated soil and open woods; May-September; 



