404 COMPOSITiE. Madaria. 



more showy and corymbose. Leaves lanceolate or linear. Flowers yellow ; 

 the rays often spotted with purple at the base : anthers brown. 



1. M. elegans (DC.) : stem and leaves hispid with glandless and glandu- 

 liferoiis hairs intermixed. DC! not. 7. pl.rar. Genev.p. 17, Sf prodr. 5. p. 

 692 ; Hook. S^ Am. ! hot. Beechey, suppl. p. 353 ; Hook. hot. mag. t. 3548. 

 Madia elegans, Dentin hot. reg. t. 1458. M. viscosa, /?. Hook. fl. Bor.-Am. 

 2. p. 24. 



California ! and Oregon ! Common in cultivation. — Rays linear-cuneate, 

 spotted with purple at the base, acutely 3-cIeft at the apex. 



2. M. corymhosa (DC.) : stem and involucre hispid with glandless and 

 glanduliferous hairs intermixed ; leaves linear, villous, somewhat hispid, 

 glandless. (Varies with the glands many, or very few.) DC! I. c; Hook. 

 Sf Am. I. c. ; Endl. iconogr. t. 36. M. racemosa, Nutt. ! in trans. Amer. 

 phil. son. I. c. 



/?. ? hispida (DC. 1. c.) : stem, leaves, and involucre hispid with spreading 

 hairs, all of them glandless. 



California and Oregon! — Rays sometimes with a brown spot at the base, 

 3-cleft at the apex. 



142. MADIA. Molina, Giil. ; Cav. ic. 3. p. 50, t. 298 ; DC. I. c. 



Madia & Madorella, Nutt. 



Heads usually many-flowered ; the ray-flowers 5-12, ligulate, pistillate, in 

 a single series ; those of the disk tubular, perfect. Scales of ihe subglobose 

 involucre in a single series, as many as the rays, carinate-complicate and en- 

 closing their achenia. Receptacle flat, naked, except the margin, which is 

 furnished with 1-2 series of chaflTy scales, usually more or less united. Co- 

 rolla with a pubescent tube ; the rays slightly' exserted. Branches of the 

 Btyle in the disk-flowers lanceolate, acute or acuminate, the margins minutely 

 hispid. Achenia of the ray and disk similar, compressed, nearly straight, 

 oblong-obovate, glabrous (minutely and closely striate), destitute of pappus, 

 usually more or less one-nerved or angled on each side. — Annual or biennial 

 hairy and glandular herbs (natives of Chili, California, & Oregon) ; with ob- 

 long or linear sessile or partly clasping entire or denticulate leaves; the low- 

 est often opposite, the others alternate. Heads bracteate, sessile, or on short 

 peduncles, somewhat racemose. Flowers pale yellow : anthers brown. 



1. 31. saiira (Molina) : villous and glandular throughout; leaves lanceolate 

 or oblong-lanceolate ; heads many-flowered, mostly racemose and peduncu- 

 late ; achenia manifestly 1-2-angled on each side. — DC not. 7. pL rar. 

 Genev., Sfmem. soc. Genev. 7.^.277, Sf prodr. 5. p. 691 ; Hook. &^- Am. hot. 

 Beechey, suppl. p. 355 ; Nutt. ! in trans. Amer. phil. soc. (n. ser.) 7. p. 387. 

 M. viscosa, Cav. I. c. ; Hook. ! fl. Bor.-Am. 2. p. 24, in part. M. mellosa, 

 Jacg. hort. Schcenb. 3. t. 302. Sclerocarpus gracilis, Sinith, in Rees, cycl., 

 ex Hook. Sf Am. I. c. 



p. congesta : heads clustered at the summit of the stem and branches. — M. 

 congesta, Nutt. ! I. c. 



Oregon ! and California ! doubtless indigenous. Also a native of Chili, 

 where it is cultivated for the oil yielded by its seeds. 



