Pisonia flavescens Standl.

Pisonia flavescens Standley, Contr. U. S. Nat. Herb. 13: 389
1911.
E ranches slender, dark-gray, smooth, the branchlets brown or grayish, pnberulent; spines stout, straight, 6-7 mm. long; petioles slender, 1-2 cm. long; leaf-blades obovate or obovateoblong, 4-6.5 cm. long, 1.5-3 cm. wide, very acute or attenuate at the base, acute or acuminate at the apex, the acumen usually obtuse, subcoriaceous, yellowish-green, concolorous, glabra te above, minutely puberulent beneath, the margins plane, the lateral veins evident beneath, arcuate-ascending at an angle of 45-60°; peduncles solitary, 1 cm. long or usually shorter; staminate inflorescence capitate-cymose, many-flowered, 1 cm. broad or less, the flowers very short-pedicellate, the pedicels puberulent; staminate perianth broadly campanulate, 2.5 mm. long and usually broader, puberulent, deep-red; stamens usually 6, nearly twice as long as the perianth; fruit clavate, 10 mm. long, 3-4 mm. in diameter, 5-angled, glabrate, each angle beset with a row of short uniseriate glands.
Type locality: San Jose del Cabo, Ivower California. Distribution: Vicinity of the type locality.