360 BORRAGINACE.E. (BORAGE FAMILY.) 



the lower opposite ; spikes filiform, 1 -sided > flowers short-pedicelled, some of 

 them leafy-bracted, others bractless; corolla ($" long), white; nutlets united, 

 hispid at the apex, with the sides concave. South Florida. Stem 4' -6' 

 high. Leaves i' long. Corolla slightly hispid. 



5. H. EuropJBUm, L. Pubescent ; leaves oblong-oval, obtuse, long- 

 petioled ; spikes bractless, lateral and terminal, single or in pairs ; flowers 

 white. Waste ground. Introduced. 



* * Throat of the corolla closed or bearded. Nutlets 2, each 2-seeded. 



6. H. Indicum, L. Annual; stem erect, rough-hairy ; leaves oblong- 

 ovate, often cordate, toothed or wavy on the margins, rugose, decurrent into 

 a long petiole ; spikes hairy, coiled, at length elongated ; corolla blue ; nut- 

 lets spreading. Waste places. June -Oct. Stem l-2 high. Leaves 

 2' -4' long. Fruiting spike 6' -9' long. 



7. H. parviflorum, L. Perennial, hirsute; stem erect, branching; 

 leaves lanceolate or oblong, obtuse, entire, tapering into a slender petiole, the 

 lower ones mostly opposite; spikes slender; corolla white, bearded in the 

 throat; nutlets uneven, united. South Florida. Stem 6'- 18' high. Leaves 

 l'-2'long. Corolla \" long. Spikes 2' -4' long. 



8. H. anchussefolium, Poir. Stem villous, simple ; leaves lanceolate ; 

 cyme compact, at length spreading ; flowers violet-blue. Waste ground. 



Introduced. 



5. ECHIUM, Tourn. 



Calyx 5-parted. 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, witli alternate leaves, and blue 

 or purple flowers in spiked often pauicled racemes. 



1. E. vulgare, L. Hispid; stem simple, erect (l-j> 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. Juue- 

 Aug. @. 



6. 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, 

 shining. Erect hispid herbs, with entire somewhat ribbed sessile leaves, and 

 greenish 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 ; 

 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. 



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

 slender, sparingly branched ; leaves lanceolate or oblong-lanceolate ; lobes of 

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

 white polished nutlets. Dry pine barrens. May- June. Ij. Stem l-2' 

 high. Leaves 2' long. Corolla twice as long as the calyx. 



O 



