378 COMPOSITE. Actinolepis. 



§ 1. Not woolly, hut mostly glandular, diffuse, tvith opposite phmately p^^^i^t^d or the 

 radical twice pi.nnately dissected leaves, their segments linear and attenuate : 

 heads on slender peduncles, and with rather large and numerous {yellow) rays: 

 involucre rather broad : receptacle acutely coniccd : anther-appendages oblong. 

 — Ptilomeris. {Ptilomeris, Nutt. Hymenoxys, Oxypapjms, Ton. & Gray.) 



As yet, it is uncertain whether the following are mere varieties of one, or wlntlii r tin y retain 

 their small distinctions uniformly. If at length reduced to one the name A. airnnnrid slmuld be 

 preferred, Nuttall's name (probably suggested by a likeness to Chrysanthemum coi-miKj-i ii ,ii) being 

 a year or so earlier than Hymenoxys Californica of Hooker. 



* Minutely gland ular-pttbescent : rays \Q to 15, elongated-oblong: involucral scales 



oblong-lanceolate : receptacle pmbescent. 



1. A. coronaria, Gray, 1. c. Diffusely branching slender stems a foot long : 

 pappus of 10 (or 8 to 12) lanceolate or oblong denticulate scales, all tapering into 

 awns a little shorter than the disk-corollas, or in the ray fewer and some of them 

 awnless. — Ptilomeris coronaria & P. aristata, Nutt. in Trans. Amer. Phil. Soc. vii. 

 382. Shortia Californica, Nutt. in garden catalogues. Hymenoxys Californica, 

 Hook. Bot. Mag. t. 3828 ; Torr. & Gray, PL ii. 280, with var. coronaria. 



Near San Diego, Nuttall. So far as we know collected only by him, and in cultivation from 

 his seeds. Described as " veiy glabrous" in the Botanical Magazine, doubtless incorrectly. Rays 

 nearly half an inch long, usually 12. 



2. A. anthemoides, Gray. Leaves perhaps more copiously divided and glan- 

 dular, and heads rather smaller : pappus none. — Ptilomeris (Ptilopsis) anthemoides, 

 Nutt. 1. c. Hymenoxys calva, Torr. & Gray, 1. c. 



AVith the preceding, NiUtall. Also towards Julian City, Bolander. 



3. A. mutica, Gray, 1. c. Like the foregoing : pappus of 6 to 8 quadrate-oblong 

 scales, erose-laciniate at the truncate or very obtuse summit, shorter than the proper 

 tube of the corolla, occasionally one or two of them slightly awned. — Ptilomeris 

 mutica, Nutt. 1. c. Hymenoxys mutica, Torr. & Gray, 1. c. 



Near San Diego, Nuttall ; by whom only it has yet been collected. 



* % More or less pubescent, but hardly if at all glandular : rays 6 to 8, shorter, oval : 



involucral scales ovate : receptacle glabrous. 



4. A. tenella, Gray, 1. c. Smaller than the foregoing : the heads and leaves 

 about lialf the size of those of A, coronaria : lobes of the latter shorter and blunter 

 as well as fewer : pappus of 5 to 8 short quadrate scales, which are fimbriate at tlic 

 broad summit, or some of them occasionally bearing a delicate short awn. — Ptilo- 

 7neris tenella, & P. affinis, Nutt. PL Gamb. 173; the latter a form with some of the 

 pappus awned. 



Near Los Angeles, Gamhel. Rays 2 lines long. 



§ 2. Floccose-woolly : most of the leaves alternate : involucre narroiv : rays rather feio, 

 obovate : receptacle convex or obtusely conical : akenes minutely hairy or some- 

 times glabrous : pappus o/ 8 to 10 or more scales or squamelloe. — True 

 Actinolepis. 



* Heads small and sessile or leafy-hracted, with only 5 {or " 3 to 5 ") yelloiv 7-ays : 

 receptacle merely convex : anther-appendages ovate-lanceolate : 2)appus of subulate or 

 almost setiform scales, commonly tvanting in the disk-Jioivers. {^Actinolepis, DC.) 



5. A. multicaulis, DC. Seldom a span high, diffusely branched from the 

 base, the wliite wool below somewhat deciduous with age : leaves cuneate or spatu- 

 late with a long tapering base, the summit obtusely 3-toothed or 3-lobed : scales 

 of the pappus 10 to 15, unequal, very slender, usually (but not always) wanting in 

 all the disk-flowers. — Hook. Ic. t. 325 ; Bot. Mex. Bound, t. 33. 



