SYNGENESIA— POLYG.-SUPERF. Tussilago. 425 



on radical footstalks, toothed or entire, most downy be- 

 neath. Fl. on simple or panicled, bracteated, radical 

 stalks, yellow, white or purplish. Marginal /o;t/5 either 

 radiant, occasionally naked, or deprived of their corolla; 

 or tubular, with the same part only 4<-cleit, or otherwise 

 imperfect. The plants always increase so much by root, 

 that seeds are, in the Butter-bur tribe especially, very 

 seldom ripened ; hence great difficulty exists in ascer- 

 taining the true nature, or natural relative perfection, of 

 the organs of \\\e flower. 



1. T. Farfara. Colt's-foot. 



Stalks single-flowered, clothed with scaly bracteas. Flowers 

 radiant. Leaves heart-shaped, angular and toothed. 



T. Farfara. Linn. Sp. PI. 1214. mUd. v, 3. 19C;. FL Br. 878. 

 Engl. Bol. V. 6. t. 429. Curt. Lond.fasc. 2. /. GO. Woodv. t. 13. 

 Hook. Scot. 242. Bull. Fr. t. 329. Dreves Bilderh. t. 49. Fl. 

 Dan. t. 595. Ehrh. PL Of. 187. Loh. Ic. 589./ 



Tussilago. Raii Syn. 1 73. Ger. Em. 811./ Mnttli. Falgr. v. 2. 

 198./ Corner. Epit. 590, 591./ Fuchs. Hist. 140./ Ic. 76. f. 

 Bank. Hist V. 3. p.2. 563./ Moris, r.3. 130. sect. 7. t. 12./ 1. 

 Dalech.Hisf. 1051./ 



Petasites n. 1 43. Hall. Hist. v. 1 . 62. 



Ungiila caballina. Trag. Hist.4\S.f. Brunf. Herb. v. 1.42./ 41. 



Bechium. Tillands Ic. 2A.f. Cord. Hist. 93. 2./ 



Colt's-foot. Petiv. H. Brit. f. \7.f. 7, S. 



In moist shady situations, on a chalky or marly soil, common. 



Perennial. March, AjyriL 



Root mucilaginous, bitterish, creeping horizontally, with many 

 » fibres. FL coming before the leaves, drooping in the bud, bright 

 yellow, about an inch broad ; their rays spreading, copious, 

 very narrow ■ each flower on a simple, round, woolly, radical 

 static, scaly with numerous, reddish, smooth, scattered hractcas, 

 crowded unckr the flower, like ati e.vterior calyx. Leaves erect, 

 on furrowed ciianncllcd /bo/.s/a/Aw, heart-shaped, slightly lobed, 

 copiously and sharply toothed 3 very smooth, of a slightly glau- 

 cous green, above ; pure white and dtrnsdy cottony, with pro- 

 minent veins, beneath ; when young they are revolute, and 

 thickly enveloped in cottony down. 



The cotton, impregnated with ssalt-petrc, makes excellent tinder. 

 The leaves, either smoked like tobacco, or taken in infusion, are 

 reputed good for coughs, whence the generic name. 



'1. T. Pc(nsif(s. Butter-bur. 



Panicle dense, ovate-oblong. Flowers flosculous. Leaves 

 hrai(-^liMp( (1. unerjuallv tocuhed. tbrce-rilibed at tlie base. 



