214 SUMMER FLOWERS. 



glabrous; leaves sessile, oblong, marked with pellucid dots, 

 and occasionally a few black ones beneath; flowers bright 

 yellow, in a handsome terminal corymb; sepals with a few 

 glandular lines or dots; petals twice as long, marked with 

 black dots ; stamens shortly united ; styles 3. — Woods, hedges, 

 and thickets. Fl. Jul}^ and August. 



H. quadrangulum : stem 1-2 feet high, with four promi- 

 nent angles ; leaves ovate, clasping the stem at the base, with 

 numerous pellucid dots, and a few black ones round the mar- 

 gin beneath ; flowers pale yellow ; sepals lanceolate, pointed ; 

 petals with or without a few black dots. — Moist pastures. Fl. 

 July, August. 



tX Sepals fringed. 



H. pulchrum : stems 1-2 feet high, with short lateral 

 branches, glabrous ; leaves broadly cordate, clasping, those of 

 the branches smaller, much narrower, all marked with pellucid 

 dots ; flowers in an oblong or pyramidal panicle, golden 

 yellow ; sepals broad, obtuse, fringed at the top with black, 

 glandular teeth. — Dry woods, heaths, and wastes. Fl. July. 



H. hirsutum : stem 1^-2 feet high, nearly simple, downy 

 or hair}^; leaves oblong or elliptical, narrowed into a short 

 stalk, hairy underneath on the veins, marked with numerous 

 pellucid dots ; flowers in an oblong or pyramidal panicle, pale 

 yellow, the sepals narrow, fringed with rather long glandular 

 teeth. — Woods and thickets. Fl. July, August. 



ff Stems prostrate. 



H. humifusum : stems decumbent, much branched, almost 

 trailing, 2-6 inches long, sometimes forming dense spreading 

 tufts; leaves oval- oblong, obtuse; flowers few, small, pale 

 yellow, in short, loose, leafy cymes, the sepals oblong, un- 



