BALSAMORRHIZA COMPOSIT ZA 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- 
“ag pappus. Woods aldng streams, Oregon to California and the Rocky 
ountains. 
140 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- 
rogamous, with fertile ray- and perfect disk-flowers. Involucre 
hemispherical or broader, of more or less imbricated bracts, the 
Dy ious and herbaceous, or often foliaceous. Receptacle 
flat or barely. convex, with linear-lanceolate chaff subtending 
and partly embracing the achenes.. Rays oblong or lanceolate, 
with short tube; disk-corollas cylindrical. Siyle-branches of 
erfect flowers slender, hispid, at least on the filiform appen- 
ages. Achenes of the ray flattened parallel with the bracts, 
oblong; of the disk prismatic-quadrangular or more or less 
compressed. Pappus none. 
§ Katuractis Gray Pl. Fendl. 81. Ligules becoming thin- 
papery, and persistent on or very tardily deciduous from the 
canescently pubescent achenes. . 
B. Careyana Gray |. c. ‘‘ Cinereous-pubescent, slightly scabrous: 
flowering stems a foot high, bearing 3 or 4 small lanceolate leaves and 2 to 
7 racemosely disposed heads: leaves subcoriaceous, entire. re'iculated; the 
radical cordate-lanceo!ate, a span or more in length: involucre half-inch or 
more high: ligules oval, hardly inch long, abruptly contracted into a very 
short but distinct tube: style-branches of the disk-flowers subulate and 
very hispid throughout. Sandy plainson the Clearwater Idaho, and on 
the Wallawalla Washington. 
§ 2 Artoruiza 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 long 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 sniall 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. ¢. 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. . 
A 
