Sphaerantia chartacea Peter G.Wilson & B.Hyland
Oil dots very numerous, normally visible to the naked eye. Leaf blades about 6-9 x 2-3.5 cm. Younger leafy twigs 4-angled or shortly 4-winged.
Inflorescence up to 12 cm long. Hypanthium about 5-7 mm broad, clothed in a fine, short indumentum. Sepals broadly deltoid to semicircular, about 2 x 2-3.5 mm, both surfaces clothed in a fine short indumentum. Petals ovate-orbicular, about 2.5-3.5 x 2-3 mm, dotted with oil glands. Stamens numerous, about 16-22 in each fascicle, filaments about 0.9-3.2 mm long, with a few spreading hairs at the base. Ovary sparsely hairy, ovules about 20-30 per locule. Style up to 3 mm long.
Cotyledons lobed, butterfly-like, about 10-15 x 16-22 mm, apex broadly emarginate, base truncate or obtuse. Oil dots numerous, small. At the tenth leaf stage: leaf blade obovate or elliptic, apex acuminate, base attenuate, glabrous; oil dots numerous, midrib raised on the upper surface. Cataphylls present among the true leaves. Seed germination time 10 days.