Madia. COMPOSITE. 305 



to 16 ; bracts of the receptacle linear and unconnected : ray-akenes linear-falcate, 1-2-nerved 

 on the narrow faces, commonly witli a rndiment of pappus : disk-akenes numerous, straighter, 

 all the outer ones fertile, all with a pappus of slender palea, wliich are either little or much 

 shorter than the corolla. — Anisocarpiis Dulunderi, Gray, Proc. Am. Acad. vii. 3G0. — Woods 

 of the Sierra Nevada, California, from Mariposa to Plumas Co.; first coll. by Bolander, and 

 northward to Scott Mountains, Pringle. 



* * * Annual, with showy heads, chiefly alternate leaves, and no pappus: pubescence viscid as 

 well as liirsute or hispid. 



M. radiata, Kellogg. Stem stout, 2 or 3 feet high : larger leaves broadly lanceolate, den- 

 ticulate : Iiracts of the involucre 10 to 20, with short tips: rays as many, half-inch long, 

 obtusely 3-toothed : disk-flowers very numerous on a nearly flat glabrous receptacle, all but 

 the central ones fertile, somewhat clavate and 4-angular, straightish : ray-akenes narrowly 

 obovate-falcate, flat, tipped with a minute reflexed beak ! — Proc. Calif. Acad. iv. 190 ; Gray, 

 Bot. Calif, i. 359. — California, near the mouth of the San Joachin River, Bolander. 



M. elegans, Doy. Stem less stout, a foot or two high, or in depauperate forms only a span 

 or two, above sometimes copiously beset with stijiitate viscid glands, sometimes these almost 

 wanting: leaves linear or lanceolate, mostly entire : bracts of the involucre 5 to. 15, with 

 linear tips : rays acutely .3-lobed, yellow throughout or with a brown-red spot at base : disk- 

 flowers more numerous than the rays, on a convex hirsute-fimlirillate receptacle, all sterile : 

 fertile akenes obliquely obovate-cuneate, nearly nerveless, depressed-truncate and wholly 

 beakless at summit. — Don in Bot. Beg. t. 1458; Gray, 1. c. M. viscose, var.. Hook. Fl. ii. 

 24, not Cav. Madaria elegans & M. corgmbosa (with var. hispida'i),'DC. Prodr. v. 692. 

 M. elegans, Hook. Bot. Mag. t. 3548. M. corgmbosa, Endl. Iconogr. t. 36. M. racemosa, 

 Nutt. Trans. 1. c. — Hills and plains, throughout California, Oregou, and the borders of 

 Nevada ; first coll. by Douglas. 



§ 2. EumXdia. Ligules inconspicuous or short, from twelve to one, or rarely 

 none : clisk-Howers few or numerous and fertile : the corollas pubescent : pappus 

 none : receptacle flat, smooth : glandular and viscid heavy-scented annuals. — 

 Gray, 1. c. Madia., Madariopsis, MadoreUa, & Amida, Nutt. 1. c. 



M. sativa, Molina. Commonly robust, 1 to 3 feet high, pubescent with slender somewhat 

 viscid hairs and beset witli pedicellate very viscid glands : leaves from broadly lanceolate to 

 linear : heads commonly short-peduucled or sessile and rather scattered, 5 or 6 lines high : 

 rays 5 to 12, with honey -yellow ligules al)out 2 lines long: disk-akenes cuneate-oblong and 

 quadrangular, being prominently one-nerved on the faces (2 lines long), those of the ray 

 somewhat falcate-obovate, either with or without an obvious nerve on the sides. — Don iu 

 Bot. Beg. 1. c. ; DC. Notul. Jard. Genev. & Prodr. 1. c. ; Torr. & Gray, Fl. ii. 404. M. satira 

 (with false char.) & M. mellosa (which would have been the better name to use), Molina, 

 Chil. ed. 1, 354. M. viscosa, Cav. Ic. iii. 50, t. 298. M. mellosa, Jacq. Hort. Schanb. iii. 29, 

 t. 302. M. stellnia, Fisch. & Meyer, lud. Sem. Petrop., few-flowered form, like that figured 

 by Jac(juin. — Oregon and California. (Chili.) 



Var. COngesta, Torr. & Gray, 1. c. The common Tarweed near the coast, stout, 

 branching, very sticky ; heads mostly crowded or glomerate at the end of the branches, 

 many-flowered ; the rays from 8 to 12. — il/. capitata, Nutt. 1. c. Nearly A/, riseosn, Cav. 1. c. 

 — Fields and waysides throughout tlie western portion of California and Oregon ; probably 

 an introduction from Chili, or the contrary. 



Var. racemosa, Gray, 1. c. Slender, simple-stemmed, with fewer-flowered heads 

 somewhat racemosely disposed : disk-akenes flatter and nerve less distinct. — M. racemosa, 

 Torr. & Gray, I.e. MadoreUa racemosa, Nutt. I.e. — Oregon to Idaho, interior of Cali- 

 fornia, and Nevada. Approaching the fewer-flowered Chilian M. mellosa, Jacq., &c., perhaps 

 passing into the next. 



M. dissitiflora, Torr. & Gray, 1. c. Slender, a foot or two high, often loosely branching, 

 moderately viscid : heads 3 or barely 4 lines high, scattered or loosely paniculate : rays 5 to 8 : 

 disk-flowers few: akenes shorter and broader (a line or two long), also thicker, not angled 

 nor with the sides evidently nerved. — M. sativa, var. dissitiflora. Gray, 1. c. MadoreUa 

 dissitiflora, Nutt. 1. c. Sclerocarpus gracilis, Smith iu Bees Cycl.? — Not uncommon through- 

 out Oregon and California. 



20 



