356 COMPOSIT.E. Leplosijue. 



corollas with slender tube girt by a ring at the suuimit, and a funnelibrm or 

 more dilated 5-lobcd limb. iStyle-branches of the disk-llowera truncate-capitate or 

 tipped with a very short cone ; those of the rays little exserted. Akeiies obconi- 

 pressed, ilat, more or less wing-iuargined, similar in disk and ray. Pappus none, or 

 a minute callous cup. — Low glabrous annuals, or larger and more enduring plants 

 with thickened succulent stems, all Californian ; leaves chiefly alternate, once to 

 thrice pinnately parted into narrow linear or tiliibrm lobes ; the showy heads of 

 yellow flowers terminating long naked peduncles. — Gray, Proc. Am. Acad. viii. G57. 

 Tuckermannia, Nutt. 



CoitEOCAiiPUs (wilh Acdma), Beiith. Bot. Sulph., coutaina two or three still obscure sj)ei;ies of 

 Lower Calilbrniu, iiUied to this and the piecodiiig genus, but not very likely to occur within the 

 limits of the St.ite. 



§ 1. Annuals, a span or more h'ujk^ with long naked peduncles: heads an inch or an 

 inch and a half in diameter, including the oblong or cuneate-obovate more or 

 less 3-lobed rags : scales of the outer involucre linear. — True Leptosyne. 



1. L. Douglasii, L)C. Leafy only at the base : the peduncles all scape-like : 

 disk-corollas with a conspicuously bearded ring : akenes sparsely beset with capitate 

 rigid bristles, the winged border at length very tliick and corky, the summit with 

 an entire cup-like ring in place of {)appus. 



Dry or sandy soil, from near San Francisco (?) to San Diego. Except in the southern part of 

 the State apparently less common than the next. 



2. L. Stillmani, Gray. Stems more leafy below : involucre commonly some- 

 what hairy at base : disk-corollas beardless : akenes surrounded by a thick and 

 corky rugose wing, smooth and glabrous except the inner face, which mostly be- 

 comes sparsely papillose, and often bears a row of tubercles on the midnerve : the 

 cup in place of pappus either entire or 2-lobetl. — Bot. Mex. Bound. 92. 



Hillsides and plains, Valley of the Sacramento to the Bay, &c. ; the common si>ecie8 in the 

 central part of the State. Kuyu somewhat cuneate-obovate. 



3. L. Newberryi, Gray. Leafy only at base : the peduncles scape-like : disk- 

 corollas with a shorter tube bearing an inconspicuously bearded ring : akenes 

 (young) with a very thin wing, both faces minutely glandular-bristly, the cui) at the 

 summit obscure. — Proc. Am. Acad. vii. 358. 



Sitgreaves Pass, on the Colorado, Newberry, (.'amp Grant, Arizona, Palmer. Terhaps not 

 within the State. 



§2. Succulent thickened steins or rootstocks perennial, leafy, often branched: leaves 

 rather Jleshg : heads large. — Tuckehmannja, (iray. 



4. L. maritima, Gray. Stems rather low, herbaceous, from a fleshy tuberous 

 base or caudex : peduncles a span to a foot or more long : heads (including the nar- 

 rowly oblong slightly 3-toothed rays) 3 or 4 inches in diameter : ring of tube of tlie 

 corolla naked : akenes smooth and glabrous, bordered by a narrow tliinnish wing or 

 margin, wliolly destitute of paj^pus. — Proc. Am. Acad. vii. 538 ; Kegel, Eev. llort. 

 1872, with plate. Tuckermannia maritima, Nutt. ; Torr. & Gray, Fl. ii. 355 ; Torr. 

 Bot. Mex. Bound. U2, t. 31. 



Sea beach at San Diego, and on the islands. A striking and showy plant. In cultivation a 

 short naked awn is rarely produced from each margin of the akene ! 



5. L. gigantea, Kellogg. Stems shrubby or fleshy-woody, 2 to 8 feet high 

 and 1 to 5 inches in diameter, leafy at the top : heads numerous and corymbose!, 

 rather short-peduncled : inner scales of involucre with a prominent midrib : divis- 

 ions of the leaves more filiform. 



Sun Miguel and Santa Barbara Llands, Uurfunl, L'npl. Fvnuy. Uuudalupe Island, I'alnnr. 



