BORAGINACEiK. 269 



style nearly a- long as the 5 toothed calyx. May — Sept. Per. Native of Europe] 

 probably wrongly attributed to this country also. Stem creeping, aud with the 

 leaves covered wilh close appressed hairs. Cjrulla bright blue, with a yellow eye, 

 : , t to '^ inch in diameter. 



7. MERTEXSIA, Roth. Lungwort. 



In honor of Prof. 3fjrtens, an early German botanist. 



Calyx short, 5-eleft or 5-parted. Corolla trumpet- 

 shaped; much longer than the calyx, naked or with 5 .small 

 folds in the throat; border spreading, odobed. Stamens 

 inserted in the upper part of the tube, protruding. Style 

 long and filiform. Acilenia ovoid, smooth or somewhat 

 wrinkled. — Smooth ! perennial Herbs, with pale entire ovate 

 leaves, and ihowy purplish blue (rarely white) flowers in terminal 

 racemes. 



M. Virgin ic a, DO. Virginian Cowslip* Lungwort 



Stem upright; radical haves ovate oblong, obtuse; ttem-le&vts narrower: racemes 



at r'.r-t corymbed, elongated in fruit; corolla 4 times as long as the calyx, :. 

 groat. (Pulmonaria Yirginica.) 

 Alluvial banks, often cultivated. May. A showy plant 10 to 20 inches fa 

 with fid Kith Romewhat glaucous leaves, i to S inches long. Flowers large, I. 

 hi ae ; 1 inch long. 



S. ECHTNOSPERMUM, Swartz, Stickseed. 



Gr. ekinos, a hedgehog, and Bperma; seed; from the prickly nutlet?. 



Calyx 5 parted. Corolla salver-form, short; throat 

 ilbsed by short scales, the Umbw'ith obtuse lobes. Stamens 

 included. ACHENIA erect, fixed to a central column, triangu- 

 lar or compressed, the margin armed with prickles, barbed 

 at the apex. — Ronqli-hairy and grayish herbs, with oblong or 

 linear leaves, and small blue flowers in bracted racemes. 



E. Laitula, Lehm. Common Btickseed'. Burrseed. 



i erect, branched above; leaves lanceolate, sessile, bristly-ciliate ; corolla 

 longer than the calyx, border erect, spreading; acheniu with 2 rows of hooked 

 prickles on the margin. 



Roadsides, probably introduced. July, Aug. Ann. Stem erect, 10 to 20 ineBM 

 nigh. Leaves 1 inch long, % to % wide. Flowers minute, blue, in leafy raceme*. 



9. CYN03LOS5UM, Tourn. Hound's-tongue. 



Gr. l-itcn, a dog, and glessa, a tongue; in allusion to the form cf the leaves. 



Calyx 5-parted. Corolla short, funnel-form, the throat 

 closed with 5 obtuse scales ; lores rounded. Stamens in- 

 cluded. Achenia depressed or convex, laterally affixed to 

 the base of the style, covered with short hocked prickles. — 

 112* 



