Chaetanthera
(from chaite, a bristle, and anther, an anther; the anthers being furnished with tufts of bristly hairs). ORD. Compositae. Pretty half-hardy herbaceous annuals or perennials, allied to Ainslaea. Involucere many-leaved, ciliated; florets of ray linear, three-toothed, with a fine bifid spiral segment at the divisions; receptacle flat, naked; pappus hairy. They thrive best in a compost of peat and loam. Propagated by divisions of the root, in March or April; or by seeds, sown in gentle heat, in spring. C. ciliata (ciliated). fl-heads yellow. July. h. 2ft. Chill, 1822. Annual. C. serrata (saw-leaved). fl.-heads golden yellow, solitary, terminal. l. narrow, channelled, armed with short spiny teeth. h. 6in. Chili, 1832. Perennial. (S. B. F. G. ser. ii., 214.)