Lrplomjne. COMPOSIT/K. 355 



longer croct soiiles. lieco|tt;iclo lliit; its clialT tliiii and swirious, linoiir or laiicoolate, 

 deciduous with tlio fruit, liays mostly broad and truncate, obscuri'.ly 3 - 4-lobod 

 or crenate, niany-nervod. Disk-corollas with a short-bearded or beardless ring at 

 the summit of the slender tube ; the dilated limb 5 lobed. Style-branches of the 

 ray-flowers often short and included ; of the disk-flowers tii)ped with a very short 

 cone or nearly truncate. Akcnes obcompressed, flat, oval or oblong ; those of the 

 ray broader, glabrous or nearly so, more or less wing-margined ; those of the disk 

 wingless, villous or ciliate, coherent at base with the subtending aj)pressed chaff. 

 Pappus of the ray none, of the disk a })air of long bayonet-shajx^d cliaif'y awns, little 

 shorter than the corolla. — Glabrous annuals, all Californian ; with alternate leaves 

 once or twice pinnatcly parted into linear lobes, and showy heads of golden-yellow 

 flowers, terminating hmg naked peduncles. — Gniy, Proc. Am. Acad. viii. 659. 

 Agnrista, DC. ; Torr. & Gray, Fl. ii. 337, not of Don. I'ugiopapjyus, Gray in 

 Pacif. R. Rep. iv. 48, & Proc. Am. Acad. vi. 545. 



This genus and the ne.xt take the plnce of Coreopsis in California. 



Coreopsis Atkinsoniana, Dougl., the only species known to occin- west of the Rocky Moun- 

 tnins, — a species which resembles the well-known C. tiiictoria of tlio Arkansas region, common 

 in all gardens, — belongs to Oregon, and may be expected in tlio bordering pai t of California. 



1. P. calliopsidens, Gray. A foot or two high, leafy below : lobes of the leaves 

 linear : head large : scales of the outer involucre ovate, united at base : rays obovate- 

 cuneiform : ray-akenos with a tliin winged margin ; tlioso of the disk clothed with 

 very long villous hairs on the margins and inner face. -- At/nn'sfn ca/lioj>8uiea, DC. 

 Prodr. V. 569. Coreopsis calliopsidea, IJolander, Cat. PI. San Prancisco. 



Moist hillsides and plains, from the Ray of San Frnncisco southward. Variable in size : rays 

 from half an inch to an inch long, and from 4 to 10 lines wide. Disk-corollas with a short- 

 bearded ring on the tube. 



2. P. Bre"weri, Gray, 1. c. Much smaller than the preceding, with finer divis- 

 ions to the leaves : scales of the outer involucre linear : rays rather narrow : akenes 

 of the disk long-villous on the margins and the middle of the inner face, otherwise 

 glabrous : chaffy awns of the pappus stouter, only half the length of the akene. 



Dry bills near San Buenaventura, March {Brewer) ; San Bernanlino desert, Parry. Rays half 

 or two thirds of an inch long, 2 to 4 lines wide : disk-corollas with a Iwardless ring. Ray akenes 

 nearly as in the next ; those of the disk more like those of the preceding, except in tiieir smaller size. 



3. P. Bigelovii, Gray, 1. c. A span high, leafy oidy at the base : the small 

 head on a nearly naked scape : leaves almost simply i)innately parted into a few 

 narrowly linear rather fleshy divisions : scales of the outer involucre broadly linear : 

 rays broad : ray-akenes narrowly oblong, roughish, and with thickish wing-liko 

 margins ; those of the disk slightly ciliate. 



Drv plains, on Mohave Creek (IHgclmr) nnd Fort Tojon, Dr. Horn. The plant from San Buena- 

 ventura, inadvertently referred to this species in Proc. Am. Acad. v. (M5, is the preceding. 

 The head of this only half as large. Rays rpmdrate-oblong, 4 or C linos in longtli. Ring on the 

 tube of disk-corollas distinct but beardless. Akenes of the disk inclined to be sterile ; but this is 

 also the case in the first species. 



52. LEPTOSYNE, DC. 



Head many-flowered, heterogamous ; the rays sevend or numerous, pistillate; 

 disk-ilowora perfect. Involucre double; the otiter of fi to 8 narrow and hioso foliu- 

 ceous scales; the inner of 8 to 12 erect more mend)ranaceou9 scales. ]{eceptnclo 

 nearly flat ; its cliafi" thin and scarious, linear or lanceolate, deciduous with the 

 fruit. Rays oblong or obovate, 3-toothed or lobed at the end, 10-uervcd. Disk- 



