Ptilomeris
(from ptilon, a feather, and meris, a part; alluding to the fringed, chaffy scales of some of the species). SYN. Hymenoxys. ORD. Compositae. A small genus (about three species) of hardy, annual, Californian herbs, regarded, by Bentham and Hooker, as synonymous with Actinolepis. Flower-heads yellow, pedunculate at the tips of the branches; ray florets in one series, ligulate, two or three-toothed; involucral bracts one-seriate; receptacle convex or conical, naked or very slightly bristly; achenes linear. Leaves opposite, or the upper ones rarely nearly all opposite, remotely toothed, incised, or once or twice pinnatifid. P. coronaria, the only species calling for mention here, may be treated as other hardy annuals. P. coronaria (crowned). fl.-heads, ray florets oblong; involucral scales lanceolate; receptacle pilose. June. l. mostly opposite. the divisions capillary. h. 1ft. 1838. Plant branched from the base, minutely puberulent. SYN. Hymenoxys californica (B. M. 3828).