Motwno or.oRY Family. 115 



and Shelby counties? reported from Payette, Story, and Woodbury counties. 

 f f Corollii-tiihe 2-4 times the leiujtk of the calyx. 



L. angustifolium Mx. Stem erect or suberect, fl-]4 inches high, hoary; 

 leaves linear; flowers of two kinds, pedicelled, the early ones showy; corolla- 

 tube about one inch in length, cylindrical, the lobes 5, rounded, denticulate; 

 the later flowers small, inconspicuous and with pale corollas. Dry or sandy 

 soil, prairies; widely distributed, common in the western counties, infre- 

 quent in the eastern counties; Winneshiek, Payette, Floyd, Delaware, Linn. 

 Pottawattamie, Shelby, and Emmet counties; reported from Scott, Story, and 

 Woodbury counties. 



ONOSMOD1UM Mx. Hirsute or hispid perennials, with alternate en- ' 

 tire leaves, and greenish or greenish yellow flowers in spike-like one-sided - 

 racemes. Calyx 5-parted, segments linear. Corolla cylindrical, 5-lobed; an- 

 thers sessile, included, oblong-linear or arrow-shaped, mucronate. Style 

 slender, much exserted. Fruit a bony nutlet, shining, ovoid. 



O. molle Mx. Plant pale, soft hirsute; stem 1-2 feet high; leaves sessile, 

 oblong-lanceolate, acutish, prominently veined; corolla about twice the 

 length of the calyx, hirsute externally; nutlets ovoid-globose. Prairies and 

 pastures: May-July; common in the western counties, infrequent eastward; 

 Winneshiek, Allamakee, Webster, Johnson, Union, Adams, Montgomery, 

 Page, Fremont, Pottawattamie, Shelby, Cerro Gordo, Lyon, and Dickinson . 

 counties; reported from Fayette, Scott, Muscatine, Story, and Woodbury 

 counties. (O. caraHnUinwn. var. mnlle Gray.) The hirsuteness varies from 

 short and soft to rather long and somewhat shaggy, and some forms closely 

 resemble the next. 



O. carolitiianum (Lam.) DC. Similar to the preceding, usually taller. 

 green, shaggy-hirsute; nutlets ovoid. Probably belongs to our flora. 



ECr|IUM L. A biennial bristly-hairy herb, with alternate sessile oblong 

 linear-oblong or linear-lanceolate leaves, and rather large blue violet flowers 

 in short leafy-bracted one-sided spikes. Calyx 5-parted. Corolla with a 

 funnelform tube, the limb unequally 5-lobed. Stamens 5, inserted on the 

 lower portion of the tube. 



E. Vulgare L. Piper's Bugloss. BlueweeiJ. Reported from Story county. . 

 CONVOLVULACEAE Vent. Morxing-olory Family. 



Trailing or twining herbs, with alternate, petioled, exstipulate leaves, ■ 

 and peduncled axillary flowers. Flowers showy, solitary or cymose; ped- 

 uncles frequently 2-bracted. Calyx imbricated, of a sepals. Corolla ' 

 raoncpetalous, 5-plaited or 5-lobed, convolute in the bud. Stamens 5, 

 alternate with the corolla-lobes, inserted on the corolla-tube. Ovary 

 free, 2-celled, or sometimes apparently 4-celled. Capsule globular. 2-fi- 



seeded. 



Convolvulus. Style undivided or 2-cleft: stigmas 2. linear or oblong. 



Ipomoea. Style undivided ; stigma capitate or 2-3-lobed. 



Bbewebia. Style 2-cIeft; stigmas capitate. 

 CONVOLVULUS L. Hindwked. Corolla funnelform or compamilate, in- 

 cluding the stamens. Style I; stigmas 2, narrowly linear to ovate. 



C. sepium L. Trailing or climbing extensively, glabrous or somewhat 

 pubescent, leaves slender-petioled, triangular-sagittate, pointed, auricles 

 angulately-lobed or entire; calyx with 2 ovate acute bracts below: corolla 

 large, white or tinged with rose color. Pvich soil, fields and thickets: June- 

 August; common. 



