364 BOEKAGINACE^. (BORAGE FAMILY.) 



6. MERTIENSIA, Koth. Smooth Lungwokt. 



Corolla trumpet-shaped or bell-funnel-shaped, longer than the deeply 5-cleft 

 or 5-parted calyx, uakcd, or with 5 small glandular folds or appendages in the 

 open throat. Anthers oblong or arrow-shaped. Style long and thread-form. 

 Nutlets ovoid, fleshy when fresh, smooth or wrinkled, obliquely attached next 

 the base by a prominent internal angle ; the scar small. — Smooth ! or soft-hairy 

 perennial herbs, with pale and entire leaves, and handsome purplish-blue (rarely 

 white) flowers, in loose and short panicled or corymbed raceme-like clusters, 

 . only the iov. cr one leafy-bracted ; pedicels slender. (Named for Prof. Francis 

 Charles Mertens, a German botanist.) 



§ 1. Corolla perfectly naked in the throat; the broad trumpet-mouthed limb almost 

 entire : filaments slender, protruding, much longer than the anthers. 



1. M. Virginica, DC. (Virginian Cowslip or Lungwort.) Very 

 smooth, pale, erect (l°-2° high) ; leaves obovate, veiny, those of the root (!'- 

 6' long) petioled ; corolla trumpot-sbaped, 1' long, many times exceeding the 

 calyx, rich purple-blue, rarely white ; lobes of the disk one on each side of the 

 ovary. (Pulmonaria Virginica, L. ) — Alluvial banks, W. New York to Wis- 

 consin, Virginia, and southward. May. — Cultivated for ornament. 



§ 2, Corolla with 5 glandular folds or appendages at the throat; the limb 5-lobed. 



2. M. luaritima, Don. (Sea Lungwort.) Spreading or decumbent, 

 smooth, glaucous ; leaves fleshy, ovate or obovate, the upper surface becoming pa- 

 pillose ; corolla bell-funnel-form, twice the length of the calyx (3" long) ; fila- 

 ments longer and narrower than the anthers ; nutlets flattened. — Sea-coast, on 

 rocks and sand. Cape Cod to Maine and northward ; scarce. June- Aug. (Eu.) 



3. M. panicul&ta, Don. Roughish and more or less hairy, erect (l°-2° 

 high), loosely branched; leaves ovate and ovate-lanceolate, taper-pointed, ribbed, 

 thin; corolla (6" long) somewhat funnel-form, 3-4 times the length of the 

 lance-linear acute divisions of the calyx ; filaments broader and shorter than the 

 anthers, — Shore of L. Superior and northward and westward. July. 



7. MYOSOTIS, L. Scorpion-grass. Forget-me-not. 



Corolla salver-form, the tube about the length of the 5-toothed or 5-cleft calyx ; 

 the throat witli 5 small and blunt arching appendages opposite the rounded 

 lobes ; the latter convolute in the bud ! Stamens included, on very short fila- 

 ments. Nutlets smooth, compressed, fixed at the base; the scar minute. — ^Low 

 and mostly soft-hairy herbs, with entire leaves, those of the stem sessile, and 

 with small flowers in naked (so called) racemes, which are entirely bractlcss, or 

 occasionally with one or two small leaves next the base, prolonged and straight- 

 ened in fruit. Flowering through the season. (Name composed of fivs, mouse, 

 and ovs, wto's, ear, in allusion to the aspect of the short and soft leaves in some 

 species : one popular name is Mouse-ear.) 



* Calyx open in fruit, its hairs oppressed, none of them hoolced nor glandular. 

 1. M. pallistris, Withering. (True Forget-mu-xot.) Perennial; stems 

 ascending from an oblique creeping base (9'- 20' high), loosely branched. 



