COMPOSITAE. 365 



Solidago serotina salebrosa Piper. Stems tufted, stout and tall, 90-150 

 cm. high; leaves lanceolate to oblong^lanceolate, acuminate, 3-nerved, serrate, 

 harshly scabrous on both sides, 6-15 cm. long; panicle somewhat pyramidal, 

 moderately dense, 10-30 cm. long; heads 5-7 mm. high, crowded on the 

 spreading often crowded branches; tegules thin, linear, obtuse; ray-flowers 

 7-14, yellow; akenes pubescent. 



In moist places, not common in our limits. 



Solidago algida Piper n. sp. Stems usually tufted, 10-30 cm. high, from a 

 stout branched caudex, glabrous except the ciliation of the leaves and the 

 branches of the panicle; basal leaf blades oblanceolate, entire to serrate or 

 crenate-serrate, mostly acute, firm, glabrous except the ciliate margins, 3-10 

 cm. long, the margined petioles nearly as long; cauline leaves similar, smaller; 

 inflorescence a dense globose or oblong panicle, 3-7 cm. long; branches of the 

 inflorescence puberulent; heads mostly solitary on the branches, many- 

 flowered; involucre 6 mm. high; tegules linear, thin, scarious and slightly 

 erose at the margins, acute or acutish, glabrous, not glutinous; ray- flowers 

 short, yellow. 



The common alpine golden-rod of the Olympic and Cascade Mountains, 

 very closely related to 5. scopulorum (Gray) A. Nels. and 5. ciliosa Greene of the 

 Rocky Mountains but different from both. Olympic Mountains, Piper, 

 2200, 2199 (type); Elmer 2596; Lamb, 1313; Mount Rainier, Piper, 2158; 

 Smith, 1064; Flett, July 12, 1890; Mount Stuart, Elmer, 1166; Wkited, 767; 

 Mount Baker, Stratton; Loomis, Elmer, 562. 



Solidago bellidif olia Greene. Glabrous except the scabrous ciliate margin of 

 the leaves; stems 10-30 cm. high; basal leaf-blades thickish, oblong to obovate, 

 rounded at apex, crenate-dentate, 2-5 cm. long, the margined petiole a little 

 shorter; cauline similar, smaller; heads in a dense globose or oblong cluster, 

 2-10 cm. long; involucre 5 mm. high; tegules linear, obtuse to acutish, rather 

 thin, minutely erose on the margins, glabrous not glutinous; ray-flowers 

 numerous, yellow. 



Rocky places at high altitudes, Mount Hood, Mount Adams, and Mount 

 Stuart. 



Solidago vespertina Piper n. sp. Glabrous up to the minutely puberulent 

 or sometimes resinous inflorescence; stems erect, 30-60 cm. high; basal leaves 

 spatulate to oblanceolate, thickish, obtuse or sometimes acute, serrate above 

 the middle, narrowed into a margined petiole as long as the blade; cauline 

 leaves similar, smaller, the upper ones sessile; inflorescence narrow, erect, 

 racemose to subpaniculate, 10-15 cm. long, sometimes leafy bracted near the 

 base; heads 6 mm. high, many-flowered ; involucre campanulate; tegules oblong, 

 obtuse, thin-margined, nearly glabrous, erect, in about 3 series, the outer 

 successively shorter; ray-flowers few, pale yellow, 3-toothed at apex; akenes 

 puberulent. 



In open pine woods, Mason County, Washington, near Union City, Piper 

 886 (type). Flett 878 from Tacoma differs only in having the involucre 

 varnished. In the Flora of Washington, this species was referred to 5. purshii 

 Porter (5. humilis Pursh). 



Solidago glutinosa Nutt. Glabrous, but more or less varnished with resin, 

 especially the inflorescence; stems erect, 30-90 cm. high; leaves oblong-lan- 

 ceolate to oblanceolate, serrate toward the apex, the upper cauline sessile, the 

 basal ones petioled and 8-10 cm. long; heads numerous, in a dense compound 

 virgate or pyramidal panicle, each 5-6 mm. high, 8-15-flowered; tegules oblong- 

 linear, erect, in about 3 series; ray-flowers few, yellow. 



Gravelly prairies, Vancouver Island to Oregon. First collected by 

 Nuttall near the mouth of the Willamette River. 



