Pacific Dewberry

Rubus eastwoodianus Rydberg, sp. nov
Stems climbing over bushes, sparingly hirsute, soon glabrous, terete, reddish, sparingly armed with slender, small, straight prickles; leaves of the turions ternate; stipules setaceous, ciliate, about 1 cm. long; petioles, petiolules, and midveins sparingly and weakly prickly; petioles 5-6 cm. long; leaflets thin, green on both sides, sparingly short-hirsute above, almost glabrous beneath, except on the veins, somewhat double-serrate, with broadly ovate, mucronate teeth, acute or acutish at both ends; terminal leaflet rhombic-ovate, 6-10 cm. long, with a petiolule 2-3 cm. long, the lateral ones elliptic-ovate, 5-7 cm. long, with petiolules 2-5 mm, long; leaves of the floral branches similar, or with broader and more rounded leaflets, or unifoliolate, cordate at the base, often more or less deeply 3-lobed; inflorescence corymbose, terminal, villous, prickly and slightly glandular; sepals ovate, 5-6 mm. long, tomentose, mucronate; petals of the pistillate flowers oval, 6-7 mm. long, white; fruit much elongate, often 2 cm. long and 1 cm. thick; drupelets glabrous; putamen rather strongly reticulate.
Type collected on Mt. Tamalpais, California, June 15, 1905, Rydberg 6238 (herb. N. Y. Bot. Gard.).
Distribution: Central California.