Woolly Desert Marigold

Baileya pleniradiata Harv. & Gray; A. Gray, Mem. Am. Acad. II
4: 105. 1849.
Baileya tnuUiradiata pleniradiata Coville, Contr. U. S. Nat. Herb. 4: 133. 1893. Baileya nervosa M. E. Jones, Contr. W. Bot. 8: 34. 1898.
A floccose annual; stem 2-3 dm. high, leafy, branched from the base, loosely woolly; lower leaves oblanceolate in outline, densely villous, 5-8 cm. long, more or less pinnatifid with linear or oblong divisions, the uppermost usually entire and linear; heads at the ends of the branches; peduncles 3-8 (rarely 9-10) cm. long; involucre hemispheric, about 8 mm. high and 10 mm. broad; bracts 20-30; ligules 20-35 (rarely 40), obovate-oval, 8-9 mm. long and about 6 mm. broad, undulately 3-toothed at the apex; disk-flowers 40-50; corollas 4 mm. long, glandulargranulif erous ; achenes tapering downward from the truncate apex, 4 mm. long, glandularscabrous, angled, some of the ribs being stronger.
Type locality: California.
Distribution: Southern part of California, Nevada, and Utah, western Arizona, and northern Sonora.

Baileya perennis (A. Nelson) Rydberg, sp. nov
Baileya pleniradiata perennis A. Nelson, Bot. Gaz. 47: 431. 1909.
A floccose perennial ; stem branched at or near the base, floccose ; branches erect, simple, leafy, about 3 dm. high; leaves 4-6 cm. long, nearly all pinnatifid with oblong or linear divisions, only the uppermost entire and linear; peduncles terminal, 5-15 cm. long; involucre hemispheric, 5-6 mm. high, 12-14 mm. broad; bracts 30 or more, linear-lanceolate; ligules 30-40, cuneateoblong, 10-12 mm. long, 4 mm. wide, tapering at the base, with 3 broadly ovate teeth; diskflowers numerous; corollas 4 mm. long, glandular-granuliferous; achenes 3.5 mm. long, glandular-granuliferous, tapering downward from the truncate summit, angled, the ribs of the angles much stronger than the rest. Forms intermediate between this and the next preceding and next following species are sometimes found.
Type locality: Moapa, Nevada.
Distribution: Southern Nevada to Arizona and Chihuahua.