ORDER 92. BORRAGINACE^E. 251 



3. HELIOPHYTUM, DC. Calyx 5-partecl. 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. Indlcum 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 tuberculate, base flat. 

 Flowers irregular, in spicate, panicled racemes. Summer. 



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

 handsome, violet-blue, many and crowded. @ Fields, Pa. to Va. IJf. 



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. @ Distinguished mainly by the curved cor. tube. 



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

 late 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. 



IS. Lappula 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 echiuate 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 Nos. 1, 2 



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



1 C. officinalis L. Common H. Silky-pnbescent, leafy to the top ; leaves oblong- 

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

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



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

 terminal cluster of short spikes of pale-purple flowers, li Woods, Va., N. and W. 



3 C\ OTorrlBonI 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. OPFICINALIS. Rough-haired, branching ; leaves ovate ; flowers sky-blue, showy, in 



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



9. OMPHALODES, Tourn. NAVEL WORT. Calyx deeply 5-parUxi 



