This section is from the book "The Standard Cyclopedia Of Horticulture Vol2", by L. H. Bailey. See also: Western Garden Book: More than 8,000 Plants - The Right Plants for Your Climate - Tips from Western Garden Experts.
(A. P. DeCandolle, 1778-1841, famous botanist of Geneva, Switzerland). Candolleaceae; formerly referred to Dilleniaceae. Herbs or woody plants sometimes grown under glass or in the open far South for the mostly yellow flowers.
Shrubs or undershrubs or herbs, mostly glabrous: leaves simple, mostly narrow, sometimes with margins revolute: flowers few or solitary at the ends of the branches; sepals and petals 5; stamens many, united into 5 bundles or sets, each set bearing several anthers; carpels 2-3-5, with 1-3 ovules in each. - As now understood, probably 80-90 species, mostly W. Australian, but 1 in tropical Asia and S. China and 1 in the E. Indies. Little known in cultivation, but the following Australian species are now offered.
Lindl. Shrub, with branches angular, pubescent: leaves narrow-oblong to oblong-ovate, obtuse or short-acuminate, 2 1/2 in. or less long, clasping, margins not revolute: flowers much larger, paler yellow, the petals 1 in. long and the acute sepals 3/4in. long: fruit with orange aril. B.R. 29:50. - Offered as a greenhouse plant.
Labill. Erect shrub, 6 ft. and more, with short crowded branches that are somewhat hairy when young: leaves oblong-cuneate to obovate, truncate or few-toothed at apex, 1 in. long: flowers bright sulfur-yellow, sessile in the crowded floral leaves; sepals about 1/2in., and the notched petals somewhat longer. B.M. 2711. - Offered in S. Calif., where it blooms March-June. L. H. B.