BALSAM0BRHI2A COMPOSITE 339 



winged petiole : heads few, on long peduncles ; rays wholly wanting ; disk 

 brownish, ovoid to oblong, becoming 1-2 inches long; its chaffy bracts 

 puberulent at tip : achenes 2 lines long, with conspicuous coroniform sca- 

 rious pappus. Woods along streams, Oregon to California and the Rocky 

 Mountains. 



40 BALSAMORRHIZA Hook. Fl. i, 310 (under Heliopsis). 

 Low perennial herbs with scape-like stems from thick tere- 

 binthine roots, mostly radical leaves and rather large mostly 

 solitary heads of yellow flowers, Heads many -flowered , hete- 

 rogaraous, with fertile ray- and perfect disk-flowers. Involucre 

 hemispherical or broader, ol more or less imbricated bracts, the 

 outer loose and herbaceous, or often foliaceons. Keceptacle 

 flat or barely convex, with linear-lanceolate chaff subtending 

 and partly embracing the achenes. Eays oblong or lanceolate, 

 with short tube; disk-corollas cylindrical. Siyle-branches of 

 perfect flowers slender, hispid, at least on the filiform appen- 

 dages. Achenes of the ray flattened parallel with the bracts, 

 oblong; of the disk prismatic-quadrangular or more or less 

 compressed. Pappus none. 



§ Kalliactis Gray PL Fendl. 81. Ligules becoming thin- 

 papery, and persistent on or very tardily deciduous from the 

 canescently pubescent achenes. 



B. Careyana Gray 1. c. " Cinereous-pubescent, slightly scabrous: 

 flowering stems a foot high, bearing 3 or 4 small lanceolate leaves and 2 to 

 7 lacemosely disposed heads: leaves subcoriaceous, entire re'iculated; tbe 

 radical cordate-lanceolate, a span or more in length : involucre half-inch or 

 more high : ligules oval, hardly inch long, abruptly contracted into a \ery 

 short but distinct tube: style-branches of the disk-flowers subulate and 

 very hispid throughout, bandy plains on the Clearwater Idaho, and on 

 the Wallawalla Washington. 



§ 2 Artoehiza Nutt. 1. c. 350 Ligules deciduous. Achenes 

 glabrous. Heads 1-3. Leaves entire or merely serrate, the 

 principal ones cordate or with cordate base and lorjg petioled. 



B. sagittata Nutt. Proc. Am. Phil. Soc. vii, 350. Silvery-tomentulose 

 or canescent, and the involucre white-woolly : stems numerous from the 

 crown of the thick root, 6-20 inches high, erect or ascending, with a pair 

 of sn.all linear to spatulate leaves near the middle: radical leaves from cor- 

 date oblong to hastate, entire or nearly so, 4-10 inches long, the base 2-6 

 inches wide, on longer petioles: rays 1 to nearly 2 inches long. British 

 Columbia to California and the Rocky Mountains; 



B. deltoidea Nutt. 1. c. More or less pubescent or glabrate: stems 

 numerous from the crown of the thick root, erect or ascending, 5-20 inches 

 high, with a pair of small lanceolate leaves near the centre: radical leaves 

 broadly cordate to cordately ovate-lanceolate, sometimes nearly deltoid, 

 from irregularly serrate to entire, 5-10 inches long acute or shortly acu- 

 minate, very long petioled : involucre woolly or tomentose at base; the 

 bracts in 2 series, longer than the disk, linear-lanceolate, the outer lar- 

 gest, foliaceous, spreading : rays 12-20. 1-2 inches long. Open ridges, Wil- 

 lamette Valley to California. 



