BORRAGINACEiE. (UORAGK FAMILY.) 3GI 



Tribe II. BOKRAOINEiE. Ovary ilneply 4-parU''l, f(»rmin« as many separate 1- 

 seedcil uutleus in Iruit; style rising from tlie centre between tlieni. 

 • Corolla and stamens regular. 

 •K Nutlets armed, attaclied laterally : corolla short, tdosed by 5 scales. 



2. Cj'noglossuin. Nutlets horizontally radiatf, much luoduccd downward, covered 



wiih barbed prickles. 



3. Kchinospenmiin. Nutlets erect or ascending, the margin or back armed with 



barbed jinekles. 



■^ -I- Nutlets not armed, attached more or less laterally. 



4. Krynitzkiu. Corolla short, white, with closed throat. Nutlets attached along the 



inner angle. 



5. Merten«ia. Corolla trumpet-shaped with open throat, usually blue. Nutlets flesliy, 



attached just above the b;use. 

 ■!-■•-•»- Nutlets unarmed, attaelied by the very base, ovoid, mostly smooth and shining. 

 ♦♦ Scar Uat, small. Racemes leafy-bracteate, except in n. 6. 



6. Myjjsotls. Cortdla short salver-form, its lobes rounded, and throat crested. 



7. Lithosperinum. Corolla salver-form to funnel-form, its rounded lobes spreading; 



the ihioat either naked or with low crests. 



8. Onosinodiuiu. Corolla tubular, unappendaged, its erect lobes acute. 



++ 4-* year large and excavated. 



9. Symphytum. Corolla oblong-tubular, enlarged above and closed by 5 scales. 



* • Corolla irregular, limb and throat oblique and lobes uneiiual. 



10. L.ycopsis. Corolla-tube curved, closed with hispid scales. Stamens included. 



11. l^cliium. Dilated throat of corolla unappendaged. Stamens unequal, exserted. 



AspERtJGO PROCUMBENS, L., a European annual, well marked by its much 

 enlarged memhranaceous and veiny fructiferous calyx, has sparingly appeared 

 in waste grounds about New York and Philadelphia, and at Pipestone, Minn. 



1. HELIOTROPIUM, Tourn. Tourk.sole, Heliotrope. 



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

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

 Fruit 2-4-lobed, separating into 2 indurated 2-c-elled and 2-seeded closed car- 

 pels, or more commonly into 4 one-seeded nutlets. — Herbs or low shrubby 

 plants; leaves entire; fl. in summer, white (in our species). (The ancient 

 name, from "]\ios, the sun, and rpoir-f], a tarn, with reference to its flowering at 

 the summer solstice.) 



§ I. HELIOTROPIUM proper. Fruit A-lobed, separating into four l-celled 



l-seeded nutlets. iStyle short. 



* Flowers in bractless one-sided scorpioid spikes. 



H. ErKOP.V:rM, L. Erect annual (6-18' high), hoary-pul)esceut ; leaves 

 oval, long-petiuled ; lateral spikes single, the terminal in pairs; calyx spreiwl- 

 ing in fruit, hairy. — Waste places, southward; scarce. (Adv. from Eu.) 



1. H. Curassavicum, L. Apparently annual, glabrous; stems ascend- 

 ing; leaves lance-linear or spatulate, thickish, pale, almost veinless; spikes in 

 pairs. — Sandy seashore, Va. ; saline soils, S. HI., ami soutli and westward. 



* * fnjlonsccnce not at all scorpioid ; Jiotcers scattered. 



2. H. ten^Uum, Torr. A span to a foot high, paniculately branched, 

 slender, strigosc-canescent; leaves narrowly linear, with revolute margins; 

 flowers often bractless. — Open dry ground, Ky. to Mo. and Kiui., south to 

 Ala. and Tex. 



