114 BORAGINACEAE. 



serted at the top of the tube, anthers oblong-. Style filiform, long. Nutlets 

 ovoid, smooth or wrinkled. 



M. Virginica (L.) DC. Blue-bells. Lunywort. Virylnla Cowslip. Stem a- 

 bout one foot high, usually smooth; leaves thin, pale, entire, oval, oblong or 

 obovate, obtuse, upper sessile, lower petioled, long; flowers in a corymbose 

 raceme; corolla trumpet-shaped, much exceeding the calyx, blue or purplish 

 blue, limb nearly entire, throat naked; filaments slender, exserted. Damp 

 soil along streams; April-May; frequent; Winneshiek, Scott, Muscatine. 

 Johnson, Des Moines, Van Uuren, Page, and Polk counties; reported from 

 Payette and Story counties. 



M. paniculata (Ait.) Don. Stem 1-2 feet high, erect, scabrous; leaves thin, 

 ovate to ovate-lanceolate, taper-pointed, the upper sessile, the lower petioled; 

 calyx-lobes lanceolate or linear; corolla usually 2-3 times the length of the 

 calyx, 5-lobed, purple-blue, throat crested, filaments broad and short. 

 Woods; June-August; infrequent; Winneshiek county. 



LITrjOSPERMUM L. Mostly perennials, with thickish descending roots, 

 usually containing a red dye, sessile or short-petioled leaves, and bine, yel- 

 low or white flowers in leafy-bracted spikes or racemes. Calyx 5-parted or 

 ">-cleft, the lobes narrow. Corolla funnelform or salverform, limb 5-lobed, 

 throat open, appendages sometimes present. Anthers 5, included, oblong, 

 nearly sessile. Nutlets 4, smooth, white, shining, or brown and wrinkled. 



* Corolla yellowish- or wkite; its tube shorter tlmn or only equalling the calyx. 

 t Nutlets brown, wrinkled nnrt pitted. 



L. arvense L. Annual or biennial; stem 1-2 feet high, usually branched; 

 leaves linear, linear-oblong or lanceolate; flowers sessile, in spikes; nutlets 

 brown, wrinkled, pitted. Waste places; May-August; reported from Musca- 

 tine and Lee counties. 



f f Nutlets smooth, shining, Ivory white. 



L. officinale L. Oromwell. Perennial; puberulent; stem 2-4 feet high, 

 leafy, branched; leaves lanceolate or oblong-lanceolate, acute; flowers yel- 

 lowish-white; nutlets white, ovoid. Waste places; May-August; reported 

 from Payette county. 



L. latifolium Mx. Perennial; stem erect, simple or branched, rough- 

 pubescent; leaves ovate-lanceolate, tapering both ways, rough on the upper 

 surface, soft-pubescent beneath; flowers small, pale yellow; corolla shorter 

 than the calyx, throat with 5 appendages. Upland woods; May; infrequent; 

 Winneshiek. Webster, Pottawattamie, and Shelby counties; reported from 

 Payette and Story counties. 

 * * Corollo yellow, its tube longer thou the calyx; nutlets white, smooth, shining. 

 f Vorolla-tnJie not more than twice the length of the coly.r. 



L. hirtum Lehm. Hairy Puccoon. Stem erect, 1-2 feet high, covered with 

 stiff hairs; leaves lanceolate or linear, rough, obtuse; flowers peduncled, yel- 

 low: corolla twice the length of the calyx, woolly at the base inside. Sandy 

 soil, woods; April-.lune; frequent; Winneshiek, Allamakee, Floyd, Johnson, 

 Lyon, and Emmet counties; reported from Payette, Scott, and Muscatine 

 counties. (/".. ijmelini (Mx.) Hitchcock). 



L. canescens (Mx.) Lehm. Hoary Puccoon. Erect, simple, fl-15 inches 

 high, soft canescent; leaves obtuse, linear or linear-oblong; flowers orange- 

 yellow, sessile; corolla-tube twic3 the length of the calyx, naked at the basa 

 inside. Fields and prairies; May-June; common; Winneshiek, Allamakee, 

 Scott, Muscatine, Johnson, Henry, Decatur, Page, Pottawattamie. Calhoun. 



