Sphyrospermum tuberculatum Wilbur & Luteyn

long, with dense bulbous based trichomes at least distally; bract triangular, ap-pressed, ca. 0.6 mm long, bracteoles triangular, alternate, 0.3-0.5 mm long, nearly basal. Flowers with the hypanthium densely tuberculate with bulbous-based, glandular protuberances, ca. 2.5 mm high, 2-2.2 mm in diameter; calyx limb glabrous, erect to slightly spreading, 0.5-0.7 mm long including the lobes, the lobes 5, erect, triangular, glabrous, 0.4-0.5 mm long. Fruit a globose, densely tuberculate white berry; seeds cuneiform with a striate, transparent (when dry) outer layer exhibiting the green embryo within.