Mertensia. BORRAGINACE^E. 201 



Sch. Syst. iv. 746. P. ciliata, James in Long Exped. ; Torr. in Ann. Lye. N. Y. ii. 224. 

 Mertensia denticulate., Don, 1. c. M. ciliata, Don, 1. c. ; DC. Prodr. x. 92. M. stoinatcchoides, 

 Kellogg in Proc. Calif. Acad. ii. 147, fig. 43. Along mountain streams from the Rocky 

 Mountains in Colorado to the higher parts of the Sierra Nevada, California, and far north- 

 ward. (E. Asia.) 



Var. Drummondii, Gray, 1. c. Dwarf, a span high : leaves oblong, sessile, only 

 about an inch long, with barely denticulate-scabrous margins and obsolete veins : corolla 

 only 5 lines long ; the tube little if at all longer than the limb and hardly twice the length 

 of the ovate-oblong obtuse lobes of the calyx. Lithospermum Drummondii, Lehui. Pugill. 

 ii. 26, & in Hook. Fl. ii. 86. Mertensia Drummondii, Don, Syst. iv. 319. Arctic sea-shore, 

 Richardson. Formerly and wrongly referred to M. alpina ; but apparently an arctic variety 

 of M. Sibirica. 



M. paniculata, Don, 1. c. Greener, roughish and more or less pubescent : cauline leaves 

 ovate to oblong-lanceolate : racemes loosely panicled : calyx-lobes lanceolate or linear and 

 mostly acute, hispid-ciliate or throughout hirsute, equalling or only half shorter than the 

 tube of the purple-blue (6 or 7 lines long) corolla. Gray, 1. c. Paimonaria paniculata, Ait. 

 Kew. ed. 1, i. 181 ; Hook. Bot. Mag. t. 2680. P. pilosa, Cham, in Linn. iv. 49. P. pubescens, 

 Willd. in Rcem. & Sch. iv. 744 ? Lithospermum Kamtschaticum, Turcz. in Bull. Mosc. 1840, 

 75. Mertensia paniculata, pilosa, pubescens ? & Kamtschatica, DC. 1. c. M. Sibirica, Torr. in 

 Wilkes Exp. xvii. 412. Lithospermum corymlosum, Lehm. Pugill. ii. 27, therefore M. corym- 

 losa, Don, 1. c. (Some forms connect with the preceding species, which is on the whole 

 quite distinct.) Hudson's Bay and Lake Superior, thence to the Rocky Mountains (south 

 to Utah and Nevada), Alaska, Behring Straits. (N. E. Asia.) 



Var. nivalis, Watson, an alpine form, a span or so high, with thicker leaves only 

 an inch long, and rather slender tube to the corolla : ambiguous between this species, 

 M. oblong if olia, and the next. Bot. King, 239. High mountains of Utah, up to 12,000 feet, 

 Watson. 



= = Stems from a foot down to a span high: leaves smaller (one or two inches long), nearly 

 veinless, obtuse or barely acute, pale or glaucescent. 



M. lanceolata, DC. Either glabrous or hirsute-pubescent, simple or paniculately 

 branched : leaves from spatnlate-oblong to lanceolate-linear : racemes at length loosely 

 panicled : calyx-lobes lanceolate, acute, sometimes obtuse, ciliate or hirsute, or rarely gla- 

 brous, more or less shorter than the tube of the blue (5 or 6 lines long) corolla, which is 

 hairy near the base within : filaments generally longer than the anthers. Gray, Proc. 

 Am. Acad. x. 53. Pnlntonaria lanceolata, Pursh, Fl. ii. 729, rather large form. P. marginata, 

 Nutt. Gen. i. 115. Lithospermum marginatam, Spreng. Syst. i. 547. Mertensia alpina, Gray in 

 Am. Jour. Sci. 1. c., in part ; Hook. f. Bot. Mag. t. 6178. Hillsides, along the lower 

 Rocky Mountains and their eastern base, from Dakota and Wyoming to northern New 

 Mexico. A variable species ; the largest forms approaching too near the preceding; the 

 smaller extremely different in appearance. Seemingly occurs in two forms as to length 

 of style and filaments, the latter conspicuous in both forms. 



Var. Fendleri, Gray, 1. c., is a (commonly hirsute) state, with calyx 5-cleft only to 

 the middle. M. Fendleri, Gray in Am. Jour. Sci. 1. c. New Mexico (Fendler, Palmer) and 

 Colorado. 



f H Filaments extremely short and narrower than the anthers, inserted either on the margin of 

 the throat or about the middle of the tube (evidently heterogone-dimorphous) : style in both kinds 

 included. 



M. alpina, Don, I. c. A span or more high, either nearly glabrous and smooth or pubes- 

 cent: leaves oblong, somewhat spatulate or lanceolate, rather obtuse ; the cauline sessile 

 (1 or 2 inches long) : flowers in a close or at length loose cluster: calyx 5-parted or deeply 

 5-cleft ; its lanceolate lobes equalling or rather shorter than the tube of the corolla, which 

 hardly ever exceeds its limb : anthers nearly sessile, in the low-inserted form scarcely 

 equalling the conspicuous crests of the corolla : style in this form reaching only to about 

 the base of the anthers, in the other reaching almost to the mouth of the tube. Gray in 

 Am. Jour. Sci. 1. c., mainly, & Proc. Am. Acad. x. 53. Puhnonaria alpina, Torr. in Ann. 

 Lye. 1. c. Mertensia brevisti/la, Watson, Bot. King, 239, t. 23, fig. 1, 2, the form with low 

 anthers and short style. Colorado Rocky Mountains, at 9-11,000 feet, and at lesser eleva- 

 tion in those of Utah. Corolla 3 or 4 lines long. 



