SUNFLOWER FAMILY 139 
. a in disk-flowers undivided, — hispidulous. Achenes of ray obovoid, cov- 
by the variously muricate and often hooded or beaked inner phyllaries which are 
eae duous with the achenes. foe tebe ar disk sterile, stipitiform. Pappus none. [An 
ancient name of black hellebore from the Greek, — trarily transferred to this genus. ] 
A genus of about 12 species of subtropical America but mostly Mexico; one or two introduced into the Old 
World. Type species, Melampodium americanum L. 
Li Te a nadie (Cav.) H.B.K. Melampodium. Fig. 5204. 
Alcina perfolia Tc. 1 ot.15- 179 
Melampodiu bam ations * = K. Nov. ahr & Sp. 4: 274. 1820. 
Coarse annual, sparsely hispid especially toward the nodes, the peduncles puberulous, the 
stems about 1 m r less, dichotomously branc eaves opposite, in rat ew pairs, the 
internodes long; petioles broadly wing-margined, dilated at bas d usu connate; blad 
deltoid-ovate or rhombic-ovate, often hastately lo at , acute, serrate or my ge 5- 
long and wide, rough above, pidulous and gland-dotted th, green on ides, thin; 
heads solitary in the forks and terminal, on —— 2-11 cm. long; phyllaries 5, se or oval, 
mm. long, 0 —. ciliolate, united at ex e base; rays about 8-13, _ yellow, much shorter 
an involucre ; fruit rounded on back, m ae acats the tip, about 5 m 
Occurring as a bast in swampy and waste places, vicinity of Los ene ag ri Los pee ies: California; 
isimoducad ten om Mexico; occurring also in Guatemala. Type locality: Mex y—Nov 
5202. Bebbia juncea 
5204. Melampodium perfoliatum 
5203. Eastwoodia elegans 5205. Sanvitalia abertii 
