PIPER FLORA OF THE STATE OF WASHINGTON. 477 



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

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

 sessile or short-petioled ; inflorescence rather open, the bracts foliaceous; petioles slender, 

 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-tubc; 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, Kirk Whited 307. 



This species is allied to M. intermedia Rydbeig, but is at once distinguished by the 

 larger corolla with relatively longer tube. The type is in the U. S. 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 glaucescent, 

 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 muriculate; 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; lilaments dilated, 

 shorter than the anthers; nutlets finely muriculate, 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. 3309i/ 

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

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

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



3. Mertensia ambigua sp. nov. 



Stems glabrous and leafy, about 60 cm. high; 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 

 muriculate; 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 

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

 tln-oat; 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 Washington in 1889. The 

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



4. Mertensia brachycalyx sp. nov. 



Whole plant glabrous except the ciliate margins of the leaves and calyx lobes; stems 

 stout, erect, leafy, a meter or more high; leaves bright green, lance-ovate, or the lower 

 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 unequal; corolla blue, about 12 mm. long, the tube as long as the strongly ampliate 

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

 convex on back. 



Collected near Nason Creek, Chelan County, 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. 1901. 

 Type locality: Priest River, Idaho. 



Range: Idaho and adjacent Washington and Oregon. 



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



