680 



BORAGINACEAE (BORAGE FAMILY) 



++ ++ Corolla irregular, limb and throat oblique, and lobes unequal. 



7. Lycopsis. Corolla-tube curved. Stamens included. 



4- -i- Throat of corolla open or merely vnih folds or crests (not scales). 

 ++ CoroUa and stamens regular. 



8. Myosotis. Corolla short salver-form, its lobes rounded, and throat crested. Racemes not 



leafy-bracted (or only exceptionally so at base) . 



9. Mertensia. Corolla trumpet- or funnel-shaped, ^^^th open or crested throat, usually blue. 



Nutlets fleshy or becoming dry, attached just above the base. 

 Lithospermum. Corolla salver-form to funnel-form, its rounded lobes spreading ; the throat 



either naked or with low crests. Racemes leafy-bracted. 

 Onosmodium. Corolla tubular, unappendaged, its erect lobes acute. Racemes leafy-bracted. 



++ -H- Corolla irregular, limb and throat oblique, and lobes unequal. 



12. Echium. Dilated throat of corolla unappendaged. Stamens unequal, exserted. 



10 



11 



1. HELIOTROPIUM [Tourn.] L. Turnsole. Heliotrope 



Corolla salver-form or funnel-form, unappendaged, more or less plaited in 

 the bud. Anthers nearly sessile. Style short ; stigma conical or capitate. 

 Fruit separating into 2 indurated 2-celled and 2-seeded closed carpels, or more 

 commonly into 4 one-seeded nutlets. — Herbs or low shrubby plants ; leaves 

 entire ; fl. in summer. (The ancient name, from r/Xtos, the sun, and r/joTnJ, a 

 turn, with reference to its flowering at the summer solstice.) 



§ 1. EUHELIOTROPIUM Griseb. Fruit 4-Iobed, separating into four 1-celled 



l-seeded nutlets ; style short. 



* Flowers in bractless one-sided scorpioid spikes. 



1. H. EUROPAEUM L. Erect annual, 1.5-8 dm. high, 

 hoary-pubescent; leaves oval, long-petioled ; lateral spikes 

 single, the terminal in pairs ; calyx spreading in fruit, 

 hairy ; corolla white, rarely 4 mm. broad. — Waste and 

 ballast ground, Mass. to D. C. and Ela. (Adv. from Eu.) 



2. H. curassavicum L. (Seaside H.) Apparently 

 annual, glabrous ; stems ascending ; leaves lance-linear 

 or spatulate, thickish, pale, almost veinless ; spikes in 

 pairs ; flowers white or bluish. — Sandy seashores and salt 



marshes, from Del. southw. : saline soils, s. HI., southw. 

 and westw. ; ballast and waste places near the coast, 

 locally northw. to Me. Fig. 849. 



849. H. curassavicum. 



* * 



Inflorescence not at all scorpi- 

 oid ; flowers scattered. 



3. H. tenellum (Nutt.) Torr. 

 Stem 1.5-4 dm. high, paniculately 

 branched, slender, strigose-can- 

 escent ; leaves narrowly linear, 

 with revolute margins ;, flowers 

 white, often bractless. — Open 

 dry ground, Ky. to Kan., and 

 southw. Fig. 850. 



§2. 



860. H. tenellum. 



TIARIdIUM (Lehm.) Gray. Fruit 2-lobed, sepa- 

 rating into tv}0 2-cellcd 2-seeded carpels, vjith some- 

 times a pair of empty false cells ; style von/ short; 

 flowers in bractless scorpioid spikes. 



Erect and liairy annual ; leaves petiolfd, ovate or oval and 

 somewhat heart-shai)ed ; spikes single ; corolla bhie ; fruit L*-c)eft, miter-shaped, 

 with an empty false ceil before earh seed-bearing ceil. — Waste placf^s, Ky. to Ind., 

 Mo., and southw. ; also on ballast northw. (Adv. from India.) Fia. 851. 



851. H. indicum. 

 4. H. fNDlCUM L. 



