Avens

Sieversia macrantha Kearney, sp. nov
}Geum calthifolium Scheutz, Nova Acta Soc. Sci. Upsal. III. 7e: 58. 1870. Not G. calthifolium Menzies. 1810.
Hairy perennial; rootstock stoutish, clothed with persistent stipules and bases ofold leaves; flowering stem ascending, about 2 dm. high, rather sparingly leafy; basal leaves lyratepinnatifid, 8-16 cm. long, 1 1-15-foliolate, the terminal and two uppermost lateral segments obovate in outline, crenate-dentate, 3-5 cm. long, the remaining lateral segments smaller, the alternate pairs much reduced; larger 1-2 cm. long, obovate, sparingly lobed or merely toothed, the middle lobe 3-5-cleft and crenate-dentate; cauline leaves lobed or cleft and the divisions toothed; flowers about 3 cm. in diameter; sepals ovate or ovate-lanceolate; petals nearly orbicular, 12-15 mm. long; style sparingly hairy; ovary villous; fruit not seen.
Type collected in an alpine meadow about 540 m. above sea level, at Kukak Bay, Alaska Peninsula, July 1-5, 1899, Coville & Kearney 1696 (U. S. Nat. Herb.).