PIPER FLORA OF THE STATE OF WASHINGTON. 477 



obtuse, the blades 5 to 7 cm. long, shorter tliaii the margined petioles; middle and upper 

 cauline leaves lanceolate, acute or acutish, 5 to 10 cm. long, narrowed toward tiie base, 

 sessile or short-petiojed ; inflorescence rather open, the bracts foliaceou.s; petioles sh-nder, 

 papillate near the calyx; calyx divided nearly to the base, the lance-oblong lobes smooth 

 excepting the appressed-ciliate margin, about one-third as long as the corolla-tube; corolla 

 bright blue, about 18 mm. long, the ampliate limb distinctly shorter than the tube; fila- 

 ments dilated, longer than the anthers; fruit not seen. 



In damp thickets, Ellensburg, April 25, 1897, Eirlc Whited 307. 



This species is allied to M. intermedia Rydl)eig, but is at once distinguished bv the 

 larger corolla with relatively longer tube. The type is in the U. wS. National Herbarium 

 (sheet no. 366088) . 



2. Mertensia laevigata sp. nov. 



Stems stout, erect, more or less glaucous, 40 to 90 cm. high; leaves pale or ghuicescent, 

 numerous, the cauline ovate, acuminate, glabrous or somewhat papillate above, glabrous 

 beneath, ciliate on the margin, 5 to 7 cm. long, short-petioled; inflorescence loose, the 

 pedicels appressed-pubescent or nniriculate; calyx divided nearly to the base, its lobes 

 lance-oblong, acute, ciliate, smooth on the back, over half as long as the corolla tube; 

 corolla blue, 14 mm. long, the somewhat ampliate limb as long as the tube; filaments dilated, 

 shorter than the anthers; nutlets finely niuriculate, pale, the scar of attachment central. 



The following specimens are referred here: Goat Mountains, 0. D. Allen, no. 231, July 22. 

 1896; Mount Rainier, Piper 2116, altitude 2,000 m., August 15, 1895; type sheet no. S3m\l 

 in U. S. National Herbarium; Klickitat River, Flett 1199, June 27, 1899; Mount Stuart, 

 Ehner 1195, August, 1898; "California Bob" Peak, Olympic Mountains, Lamb 1383, August 

 4, 1897; Simcoe Mountains, Howell, June 6, 1899; Mount Rainier, Pifer 2116. 



3. Mertensia ambigua sp. nov. 



Stems glabrous and leaf}', about 60 cm. higli; leaves thin, acute, more or less papillose 

 above, sparsely scabrous-ciliate on the margins, the lower cauline lanceolate or lance-ovate, 

 8 or 10 cm. long, on petioles of nearly equal length, the middle and upper cauline oblong or 

 oblong-ovate, or the uppermost ovate and sessile: inflorescence loose and open; pedicels 

 niuriculate; calyx short, its lobes oblong, scarcely broader at base, mostly obtuse, smooth 

 on the back, ciliate, only one-fifth as long as the corolla tube, and in fruit exceeded by the 

 mulcts; corolla blue, 12 mm. long, the tube about twice as long as the slightly enlarged 

 tluoat; filaments dilated, shorter than the anthers; nutlets pale, distinctly keeled on the 

 back, slightly tuberculate, the triangular scar central. 



Collected by G. R. Vasey in the Cascade Mountains of central ^Yashington in 1889. The 

 type sheet is in the U. S. National Herbarium, no. 296759. 



4. Mertensia brachycalyx sp. nov. 



AVhole plant glabrous except the ciliate margins of the leaves and calyx lol^es; stems 

 stout, erect, leafy, a meter or more high: leaves bright green, lance-ovate, or tiie l(,\vrr 

 cauline lanceolate, smooth beneath, usually papillose above, 5 to 10 cm. long, the lower 

 ones petioled; inflorescence leafy and open, the flowers in small clusters subtended by a pair 

 of leafy bracts on slender branches; calyx small, glabrous, the short triangular acute lobes 

 often unecjual; coi-olla blue, about 12 mm. long, the tube as long as the strongly ampliate 

 throat; filaments dilated, iiuich shorter than the anthers; fruit whitish, nearly smootli, 

 convex on back. 



Collected near Nason Creek, Chelan Count}', at an altitude of 1,400 meters by Sandberg 

 & Leiberg, no. 678, August 14, 1893, the type in the U. S. National Herbarium. 



5. Mertensia membranacea Rydberg, Bull. Torr. Club 28: 33. 1*J01. 

 Type locality: Priest River, Idaho. 



Range: Idaho and adjacent Washington and Oregon. 



Specimens examined: Davis Ranch near Mount Carlton, Ereaijer 202, 216. 



