Ivesia pygmaea Gray

Ivesia pygmaea A. Gray, Proc. Am. Acad. 6 : 531. 1865
Ivesia Gordonii pygmaea S. "Wats. Bot. Calif. 1 : 183. 1876.
Potentilla decipiens Greene, Pittonia 1 : 106, as to synonyms. 1887. Not P, decipiens Jordan.
Horkelia pygmaea Rydb. Mem. Dep. Bot. Columbia Univ. 2: 152. 1898.
Perennial, with a deep perennial root and closely cespitose caudex, densely covered with remains of old leaves; stem scapose, 4-7 cm. long, finely glandular-puberulent and sometimes with a few longer hairs ; basal leaves very numerous, 2-5 cm. long, finely glandular-puberulent with numerous, minute, very densely crowded and imbricate leaflets, which are 1-2 mm. long, divided to the base into oblong or oval thick segments tipped with bristles ; cyme subcapitate, or in age somewhat corymbose ; hypanthium about 4 mm. in diameter, saucer-shaped, glandular-hirsute with a rather conspicuous disk ; bractlets oblong, about two-thirds as long as the broadly ovate sepals ; petals obovate, a little exceeding the sepals ; stamens 5-10.
Type locality : Sierra Nevada, California. Distribution : Sierra Nevada of California and Nevada. Illtjstratio^J* : Mem. Dep. Bot. Columbia Univ. 2 : pi. 93, /. 1-7,