364 BORRAGINACE^E. (BORAGE FAMILY.) 



6. MERTENSIA, Roth. Smooth Lungwort. 



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

 or 5-parted calyx, uaked, 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 lower one leafy-bracted : pedicels slender. (Named for Prof. Francis 

 Charles Mertens, a German botanist.) 



§ I. 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 (4'- 

 6' long) petioled; corolla trumpet-shaped, 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. maritima, 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. paniculata, 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 with 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 bractless, or 

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

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

 and ovs, coroy, 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 hooked nor glandular. 

 1. M. pallistris, Withering. (True Forget-me-not.) Perennial ; stems 

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



