SUNFLOWER FAMILY 427 
Pane, 
ays Nt f 
Fs at 
(4h 
Nt | 
5733. Arnica discoidea 5735. Arnica venosa 
5734. Arnica spathulata 5736. Arnica viscosa 
tipped, or the shorter hairs merely viscid. Leaves numerous and equably distributed along the 
stems, the lowermost ones reduced and bract-like, the others nearly all alike, sessile, elliptic or 
oblong-ovate to oblong-obovate, wel 2-5.5 cm. long an cm. wide, entire, evidently o a 
weakly Pes ees not obviously veiny; no separate Gadat leaves produced ; heads ree tip 
rather nume short-pedunculate, discoid ; involucre 8-11 mm. high, glandular-hairy like the 
Herbage + corottne i aea acted sw 5 -stipitate- seeagrn’ below, glabrous above ; achenes uniformly long- 
stipitate-glandular ; pappus white or creamy, str ngly barbellate. 
Rocky places eg ee Hudsonian ti Mok Shasta, California, and Mount Mazama (Crater 
Lake), Oregon. Type locality: Mount Shasta. Aug 
109. RAILLARDELLA Benth. & Hook. Gen. Pl. 442. 1873. 
Heads — or sometimes with more or less well-dev eloped, fertile, yellow rays. In- 
volucral a ut equal, subherbaceous, uniseriate or nearly so. Receptacle naked, flat 
r truncate or nearly so at the base. Style-branches flattened, exter- 
nally einiawlobe. with introrsely marginal Seats lines and an elongate, slender, exter- 
nally and internally hispidulous appendage. Pappus of more or less numerous, cc haits 
plumose bristles that are somewhat flattened toward the base, or of narrow and elongate, 
bristle like plumose scales. Achenes linear, somewhat megressed. rian ae ater Pere 
