ORDER 93. BORRAGINACE^E. 251 



3. HELIOPHYTUM, DC. Calyx 5-parted. Cor. salver-form, throat 

 constricted, 5-rayed. Anth. included. Sty. very short. Nuts 2, each 2-celled 

 (sometimes with 2 additional empty cells). Herbs with habit of Heliotrope. 

 H. Indie um DC. Erect, branching, hairy ; Ivs. ovate, erose-serrulate, acute, veiny. 



rugous, abrupt or subcordate at base ; spike terminal, single (rarely forked) ; corolla 

 much exserted ; fruit with four empty cells. Fields, W. and S. 1 2f. 



4. ECHIUM, Tourn. VIPER'S BUGLOSS. Calyx 5-parted, segm. subu- 

 late, erect. Cor. campanulate, obliquely and unequally lobed, with a shoit 

 tube and naked throat. Stigma cleft. Achenia tuberculatc, base flat. 

 Flowers irregular, in spicate, panicled racemes. Summer. 



E. vulgare L. Plant rough with bristles and tubercles ; Ivs. lanceolate ; fls. large, 

 handsome, violet-blue, many and crowded. Fields, Pa. to Va. l$f. 



5. LYCOPSIS, L. WILD BUGLOSS. Calyx 5-cleft. Cor. funnel-form, 

 tube incurved, throat closed with ovate, converging scales. Ach. perforated 

 at base, ovoid, angular. (D Distinguished mainly by the curved cor. tube. 



L. arvensis L. Plant hispid, erect, branched above, with lanceolate, repand-denticu- 

 latc leaves ; flowers small, sky-blue with white scales, the bent tube longer than the 

 calyx, in leafy racemes. Fields and waysides. If. S. Europe. 



6. ECHINOSPERMUM, Swartz. BURR-SEED. Calyx 5-parted. Cor. 

 hypocrateriform, throat closed with concave scales. Ach. erect, bearing 

 1 3 rows of echinate prickles, smooth between, compressed or angular, 

 fixed to a central column. Herbs with bracted racemes and small blue fls. 

 E. Lappnla Lehm. Branched above; Ivs. hairy, lanceolate to linear; corolla longer 



than calyx, border concave ; ach. with prickles in two rows. Dry soils. If. July. 



7. CYNOGLOSSUM, Tourn. HOUND'S TONGUE. Cal. 5-parted. Cor. 

 short, funnel-form, concave, throat closed by 5 converging, convex scales. 

 Ach. covered with echmate prickles, depressed, forming a broad pyramidal 

 fruit, each fixed laterally to the style. Lvs. large. Cor. blue, purple or white. 



Racemes without bracts, or nearly so No?. 1, 2 



Racemes bracted at base, but the pedicels always extra-axillary No. 3 



1 C. of lie in a I is L. Common II. Silky-pubescent, leafy to the top; leaves oblong- 



lanceolate, the upper sessile ; naked racemes panicled ; corolla dull purple. 2f Pas- 

 tures, &c. 1 2f. Plant dull green, ill-scented. July. Europe. 



2 C. Yirgiiiicum L. Plant hairy, leafless above, with oblong-oval Ivs. below, and a 



terminal cluster of thort spikes of pale-purple flowers, y. Wood?, Va., N. and W. 



3 C. Morrison! DC. Beggar-ticks. Rough-pubescent, widely-branched ; leaves acu- 



minate ; racemes forked ; flowers very small, white ; fruit with doubly barbed 

 prickles adhering to all that pass. Rocky places. 2 3f. July. 



8. BORRAGO, Tourn BORRAGE. Cal. 5-parted. Cor. rotate, with 

 acute segments, a scale at base of each. Sta. converging. Ach. ovoid, muri- 

 cate, excavated at base, inserted lengthwise into an excavated recep. Eur. 

 B. OFFiciNAi-rs. Rough-haired, branching ; leaves ovate ; flowers sky-blue, showy, in 



terminal, loose racemes. @ In old gardens, sowing itself. 1 2f. All Summer. 



9. OMFHALODES, Tourn. NAVELWORT. Calyx deeply 5-parted. 



