200 BORRAGrN-ACE^. Mertensia. 



all pedicellate, the lowest occasionally leafy-bracteate. Fl. spring and summer. 

 — DC, Prodr. x. 87 ; Gray in Am, Jour. Sci, ser. 2, xxxiv. 339, & Proc. Am. 

 Acad. X. 52 ; Benth. & Hook. 1. c. (Stamens, in all but one of our species, pro- 

 truding from the throat, but shorter than the limb of the corolla.) 



§ 1. StenhammjCria. {Sieenhammera, Reichenb., wrongly written.) Nutlets 

 very smooth and shining, acute, fleshy-herbaceous, in age becoming utricular ; the 

 scar small : corolla short, o-lobed ; the crests in the throat evident. 

 M. maritima, Don. Very smooth, pale and glaucous, much branched and spreading : 

 leaves fleshy, ovate, obovate, or spatulate-oblong, an inch or two in length, upper surface 

 sometimes becoming pustulate: flowers small (3 or 4 lines long) on long and slender pedi- 

 cels : tube of the blue or whitish corolla hardly as long as the limb and shorter than the 

 ovate-triangular lobes of the calyx: filaments rather narrower and much longer than the 

 anthers. — Syst. iv. 320. Cerinthe maritima, Dill. Elth. t. 65. Pulmonaria maritima, L. ; 

 Lightfoot, Fl. Scot. i. 134, t. 7 ; Fl. Dan. t. 65. P.parvijlora, Michx. Fl. i. 132. Lithospermum 

 viaritimum, Lehm. Asper. 291. Steenhammera maritima, Reich. Fl. Excurs. i. 387. Stenham- 

 maria maritima, Fries, Summa, 12 & 192. Hippoglossum maritimum, Hartw. ex Lilja in Linnaea, 

 xvh. 111. — Sea-shore, Cape Cod to Hudson's Bay, and Puget Sound to Polar coasts- 

 (Greenland, N. Eu., & Asia.) 



§ 2. EuMERTENSiA. Nutlets dull and with obtuse angles if any, wrinkled or 

 roughish when dry. (Corolla commonly villous inside near the base, and below 

 sometimes with a-lO-toothed ring.) 



* Corolla trumpet-shaped, with spreading border nearly entire; the plicate crests in the throat 

 obsolete : tilaments slender, much longer than the oblong-linear anthers : hypogynous disk pro- 

 duced into two opposite narrow lobes which become as high as the ovary. 



M. Virginica, DC. Very smooth and glabrous, pale, a foot or two high ; leaves obovate 

 or oblong, veiny, or the lowest large and rounded and long-petioled : racemes at first short 

 and corymbose : flowers on nodding slender pedicels : corolla purple and blue, an inch 

 long, between trumpet-shaped and salverform, many times exceeding the short calyx. — 

 M. pulmonarioides, Roth, Cat. Pulmonaria Virginica, L. ; Sims, Bot. Mag. t. 160. (Trew, 

 PI. Sel. t. 42.) — Alluvial banks. New York to Minnesota, S. Carolina in the mountains, 

 and Tennessee : fl. spring ; not uncommon in gardens. 



* * Corolla (blue, rarely white) with conspicuously 5-Iobed limb, which above the throat (i. e. 

 the whole expanded upper portion) is usually opeu-campanulate ; the small crests in the throat 

 obvious and commonly puberulent or pubescent. 



•i— Filaments enlarged, as broad as the anthers and shorter or only a little longer, always inserted 

 in the throat of the corolla nearly in line with the crests : style long and capillary, generally 

 somewhat exserfed. (There are traces of some dimorphism as to reciprocal length of filaments 

 and style, at least in one species.) 



++ Tube of the corolla twice or thrice the length of the hmb and of the calj-x. 

 M. oblongifolia, Don, 1. c. A span or so high, smooth or almost so : leaves mostly 

 oblong or spatulate-lanceolate, rather succulent, and veins very inconspicuous : flowers in 

 a somewhat close cluster : lobes of the 5-parted or deeply 5-cleft calyx lanceolate or linear, 

 mostly acute : tube of the corolla 4 or 5 lines long, narrow ; the moderately 5-lobed limb 

 barely 2 lines long. — Hook. Kew Jour. Bot. iii. 295 ; Watson, Bot. King, 238. Pulmonaria 

 oblongifolia, Nutt. in Jour. Acad. Philad. vii. 43. Lithospermum marginatum, Lehm. in Hook. 

 Fl. K 86. — Mountains of Montana to the borders of British Columbia, and south to 

 Nevada, Utah and Arizona, at 6-9,000 feet. On moist slopes ; flowering early. 



++ ++ Tube of the corolla little or not twice longer than the throat and limb. 



= Stems mostly tall, 1 to 5 feet high: leaves ample and mainly broad, veiny: the upper with 



very acute or acuminate apex; the lowest ovate or subcordate (usually 3 or 4 inches long and 



long-petioled): calyx deeply 5-parted. 



M. Sibirica, Don, 1. c. Pale and glaucescent, glabrous and smooth or nearly so, very 



leafy : cauline leaves oblong- or lanceolate-ovate, hirsuto-ciliolate : short racemes panicled: 



calyx-lobes oblong or oblong-linear, obtuse, commonly ciliolate, half or a quarter the 



length of the tube of the bright light-blue corolla (this and the limb each about 3 lines 



long). — Gray, 1. c. Pulmonaria Sibirica, L. Spec. i. 135, not Pall. P. denticidata, Roera. & 



