358 COMPOSIT.E. Blepharipappus. 



1. B, SCaber, Hook. A span to a foot high, rough-ptilienilent and soniewliat 

 hispid, above more or less glandular : leaves alternate, narrowly linear and with 

 margins revolute (or small ones on the hranchlets involute) : heads a quarter or less 

 than half an inch long, terminating slender branches. 



Var. laevis, Gray : a form with the leaves, at least those of the brandies, almost 

 smooth and much appressed. 



Var. subcalvus, Gray : a state with the pappus both of ray and disk reduced to 

 minute hyaline vestiges, hardly exceeding the hairs of the akene. 



Sierra Valley, and along the eastern ranges of the Sierra Nevada : common tlirough the interior 

 in Oregon and Nevada. Var. Icevis is No. 118 of Bridges coll. in herb. Kew, referred to under 

 Hcmizonia in Gen. PI. ; the locality not recorded. Var. subcalvus, Sierra Valley, Bolandcr, 

 Lemmon: ax:)pareutly mixed with the common state. 



55. MADIA, Molina. Takweed. 



Head few - many-flowered, heterogamous, with 1 to 20 pistillate rays, or rarely 

 the rays entirely wanting ; the disk-flowers hermaphrodite, either fertile or sterile. 

 Involucre a single series of herbaceous scales, which are carinate and conduplicate, 

 enclosmg as many akenes, their free tij)s erect or involute. Receptacle flat or 

 convex, .with somewhat herbaceous chaff" between the ray- and disk-flowers, usually 

 more or less united into a cup, otherwise naked or fimbrillate-hirsute. Eays more 

 or less cuneiform, 3-lobed at summit. Akenes linear-oblong or clavate-oblong, 

 incurved or nearly straight, laterally compressed, minutely many-striate, glabrous 

 (those of the ray with fiat sides), wholly destitute of pappus, or in one section a 

 chafl'y-plumose pappus to mostly sterile disk-flowers. — Glandular and more or less 

 viscid heavy-scented annuals ; with linear or lanceolate entire or sHghtly toothed 

 leaves, at least the upper alternate ; and either peduncled corymbose, or panicled, or 

 clustered heads of yellow flowers, opening at evening, early morning, or in cloudy 

 Aveather. All natives of the Pacific States, one species also in Chili. — Benth. & 

 Hook. Gen. PI. ii. 293; Gray, Proc. Am. Acad. ix. 187. Madia, with Madaria 

 (DC), Anisocarpus (Nutt.), Amida (Nutt.), & Earimcarpus (Nutt.), Ton. & 

 Gray, Fl. 



§ 1. Rays conspicuous and mostly numerous (9 to 20) : disk-flowers also rmmerous 

 hut sterile, or the exterior ones fertile, with 2)ubescent corollas. — Madaria. 



* Disl-flotvers with a pappus composed of fimbriate or phimose-lacerate and slender 

 chaffy scales. (Anisocarpus, Nutt.) 



1. M. Nuttallii, Gray. Hirsute: stem slender, a foot or two high: all the 

 lower leaves opposite, denticulate or occasionally beset with slender salient teeth : 

 heads rather small and paniculate, terminating slender glandular peduncles : scales 

 of the involucre with short inconspicuous tips, rather large for tlie size of the head : 

 fertile akenes obovate-ilxlcate, the many-striate sides nerveless ; those of the disk all 

 abortive : pappus very much shorter than the corolla. — Gray, Proc. Am. Acad. Adii. 

 391,. & ix. 188. Anisocarpus madioides, Nutt. 



In woods, not rare from Monterey to Oi-egon. Leaves 2 to 5 inches long, 2 to 6 lines wide, 

 thin. Eays half an inch or less in length, cuneiform, strongly three-lobed, twice the length of 

 the involucre. 



2. M. Bolanderi, Gray. Villousdiirsute : stem 2 to 4 feet high : leaves all 

 but the lower alternate, chiefly entire (the lower 3 to 10 inches long) : heads 

 middle-sized, racemose (on short or long peduncles) : scales of the involucre Avith 

 rather slender tips : rays short but exserted : chaif of the receptacle linear, uneon- 



