BORRAGINACE^. (BORAGE FAMILY.) 331 



6. ECHIUM, Tourn. 



, Calyx 5-partcd. Corolla funnel-form, unequally 5-lobed, naked at the throat. 

 Stamens 5, unequal, mostly exserted. Style filiform. Nutlets 4, closed at the 

 base, uneven or rough. Herbs, with alternate leaves, and blue or purple flow- 

 ers in spiked often panicled racemes. 



1. E. vulgare, L. Hispid with bristly spreading hairs ; stem simple, 

 erect (l-2 high); leaves linear-lanceolate, sessile; flowers large, in short 

 axillary racemose spikes ; corolla purple, pubescent, twice as long as the 

 lanceolate calyx-teeth, shorter than the stamens and style. Fields, North 

 Carolina. Introduced, June -Aug. (9) 



7. ONOSMODIUM, Michx. 



Calyx 5-parted, the lobes linear and acute. Corolla ovate-tubular, naked in 

 the throat, with five acute, connivent lobes. Anthers nearly sessile, sagittate, 

 included. Ovary 4-parted. Style smooth, exserted. Nutlets 1-4, ovoid, shin- 

 ing. Erect hispid herbs, with entire somewhat ribbed sessile leaves, and green- 

 ish flowers in a terminal bracted raceme or spike. ^ 



1. O. Carolinianum, DC. Rough with spreading white rigid hairs; 

 stem stout, branched ; leaves oblong-ovate ; lobes of the corolla ovate, hairy ; 

 anthers oblong ; calyx-lobes scarcely twice as long as the dull white nutlets. 

 Dry soil in the upper districts. June. 1J. Stem 3 -4 high. Leaves 2' -3' 

 long. Racemes leafy. - 



2. O. Virginianum, DC. Rough with appressed bristly hairs ; stem 

 slender, sparingly branched; leaves lanceolate or oblong-lanceolate, obtuse or 

 acute ; lobes of the corolla lanceolate-subulate, bristly ; calyx-lobes 3-4 times as 

 long as the white polished nutlets. (O. hispidum, Michx.) Dry pine barrens, 

 Florida, and northward. May and June. 1J. Stem l-2 high. Leaves 2' 

 long. Corolla twice as long as the calyx. Racemes leafy. 



8. LITHOSPEEMUM, L. GEOMWELL. 



Calyx 5-parted, the lobes equal. Corolla funnel or salver form, obtusely 

 5-lobed, smooth, gibbous or hairy in the throat. Anthers oblong, nearly sessile, 

 included. Stigma capitate, somewhat 2-lobed. Nutlets 1-4, ovate, stony, 

 truncate at the base. Chiefly rough-hairy herbs, with red roots, alternate entire 

 leaves, and variously colored flowers in leafy-bracted racemes or spikes. 



* Annual : nutlets roughened. 



1. L. arvense, L. Rough with appressed hairs; stem nearly simple, or 

 branched from the base ; leaves lanceolate ; the upper ones sessile and acute, the 

 lower obtuse, tapering at the base ; flowers scattered ; corolla yellowish-white, 

 about as long as the linear-subulate lobes of the calyx ; nutlets 4. Cultivated 

 grounds and waste places, Florida, and northward. March and April. Intro- 

 duced. Stem 6' - 1 8' high. Leaves 1 ' - 2' long. 



