Lqitosijtie. COMPOSIT.E. 299 



115. HETEROSPifiRMUM, Cav. {Heterosperma. 'Erepos, other, in 

 sense of unlike, a-Tripf^a, seed.) — Small or slender annuals (from the M.-xican 

 border southward), mainly glaljrous, branching; with opposite pinnately or ter- 

 nately dissected or sometime^ undivided leaves, and small heads of yellow'flowers ; 

 the 3 to .'> rays little exserted. — Cav. Ic. iii. 24, t. 267; HBK. Xov. Gen. & 

 Spec. iv. 245, t. 383, 384; DC. Prodr. v. 032. 



H. pmnatum, Cat. 1. c. About a foot high; leaves pinnately 3-7-parted into linear divis- 

 ions, which are either all entire or some of them again i-O-parted : headf slender-pednucled, 

 about 3 lines long : oater involucre of 3 to 5 linear foliaceous bracts, hispid] _v ciliate at base, 

 and overtopping the thin and oval striate inner bracts : onter akenes oval, at maturity c^m- 

 biform or becoming oblong by inflexion of the caDous wing, destitute of pappus ; innernic st 

 commonly infertile, subulate, attenuate into a scabrous beak, bearing a pair of short decidu- 

 ous awns. — Willd. Spec. iii. 2129; UC. Prodr. v. 632. H. tagetinum. Gray, PI. Fendl. >7, 

 & PI. Wright, ii. 91, a form with simply pinnate leaves often marked with glandular spots, 

 the awns sometimes wholly wanting or caducous. — AV. Texas to Arizona, (ilex.) 



116. LEPTOSYNE, DC, extended. (Ae-rocnV,;. slendemess ; a name 

 applicable to the original, but not to most of the species here associated, exi/ept 

 as to the leaves and their divisions.) — Herbaceous or suffruticose plants (of 

 California and Arizona), smooth and glabrous ; with alternate or opposite and 

 usually rather fleshy ternately or pinnately divided or dissected leaves, and showy 

 pedunculate heads, both disk and ray flowers bright yellow. Haljit of Coreopsis 

 (which it represents on the western side of the continent), but mostly with pistil- 

 late rays, and always with a ring on the tube of the disk-corollas or at its junc- 

 tion with the throat. — Gray, Proc. Am. Acad. xvii. 218. Leptosyne, DC. Prodr. 

 V. 531, with Ayarista, DC. 1. c. 569. Coreocarpus & Aconm. Benth. Bot. Sulph. 

 28. 29, t. 16, 17. Leptosyne & Piigiopappus, Gray (Pacif. R. Eep. iv. 104), Bot. 

 Calif, i. 354. 



§ 1. EuLEPTOsrxE. Akenes callous-winged and commonly meniscoiilal at 

 maturity, a small or obscure saucer-shaped cup in place of pappus : rays pistillate 

 and commonly fertUe, obovate, more or less 3-lobed : style-tips of the disk- 

 flowers capitellate either with or without a minute setiform cusp : low annuals, 

 with all but the lowest leaves alternate, and long or scape-like monocephalous 

 peduncles: bracts of the outer involucre linear or lanceolate, loose. — Lepitosyne, 

 DC. 1. c. 



- L. Douglasii, DC. A span to a foot high, leafy only at or near the base : leaves once to 

 thrice parted into nearly filiform divisions : rays half-inch or more long : ring of the disk- 

 corollas usually distinctly bearded : akenes thickened at maturity (at least the more fertile 

 outer ones) and corky-winged, also corky-ridged down the inner face, roughened nearly 

 throughout with capitellate or clavate short and rigid bristles : pappus-cup somewhat con- 

 spicuous. — Prodr. V. .531 ; Torr. & Gray, Fl. ii. 355 ; Gray, Bot. Calif, i. 356. L. Califormca, 

 Xutt. Trans. Am. Phil. See. vii. 363, & L. yeicberri/i. Gray, Proc. Am. Acad. vii. 35S, Bot. 

 Calif. 1. c. ; state with young akenes or infertile inner ones thin-winged, and ring of corolla^ 

 tube less bearded. — California (from Monterey to San Diego and Sau Bernardino) and 

 adjacent Arizona ; first coll. by Douglas ; flowering early. 

 L. Stillmani, Gr.vt. Stotiter, more leafy below: lobes of the leaves linear, a line or more 

 broad : ring of the disk-coroUas beardless : akenes somewhat obovate, quite smooth and 

 naked on the back, becoming papillose or tubercidate on the inner face, at least aluug 

 the sliglitlv ridged centre, the corky wing more or less rusose. — But. ilex. Bound. 92, i; 

 Bot. Calif, i. 356. — California, from San Francisco Bay northward and eastward; first coll. 

 by Stillman. 



