3S0 SYNGENESIA— POLYGAM.-^QU. Arctium. 



flexed, spinous points, permanent. Cor. compound, uni- 

 form ; Jlorefs numerous, all perfect, equal, tubular ; the 

 tube very long and slender ; limb wider, ovate, in 5 li- 

 near, regular, spreading segments. Filam, 5, from the 

 tube, capillary, very short. Anth. in a cylindrical 5- 

 toothed tube, as long as the corolla. Germ, oblong, 

 downy at the summit. Style thread-shaped, longer than 

 the stamens. Stigm. 2, reflexed. Seed-vessel none, ex- 

 cept the permanent closed calyx, falling off entire. Seed 

 1 to each floret, inversely pyramidal, with 4 unequal 

 blunt angles, abrupt. DoW7i a tuft of simple rough bris- 

 tles, shorter than the seed. Recept. flat, covered with 

 narrow, linear, chaffy scales, nearly as long as the calyx. 

 Large, branching, downy, biennial herbs; with alternate, 

 undivided leaves; and numerous, terminal, purple^ow^rs. 



1. A. Lappa, Common Burdock, or Clot-bur. 



Leaves stalked, heart-shaped, wavy, without prickles. Calyx 

 when in seed nearly smooth. 



A. Lappa. Linn. Sp. PL 1143. Willd.v.3. 1631. Fl. Br. 844. 



Comp. ed. 4. 1 33. Engl. Bot. v. 1 8. L 1228. Curt. Lond. fasc. 4. 



t. 55. Woodv. t.\D. Hook. Scot. 235. 

 Lappa n. 1 6 1 , |S. Hall. Hist. v. 1 . 70. 



L. major, Arcium Dioscoridis. Bauh. Pin. 198. Raii Syn. 197. 

 L. major. Trag. Hist. 837. /. DeCand. Fr. v. 4. 77. 

 Personata sive Lappa major. Matth. Valgr. v. 2. 497./. Camer. 



Epit. 887./. Dalech. Hist. 1055./ 

 P. Lappa major, Bardana. Lob. Ic. 588./ 

 Bardana major. Ger. Em. 809./ 

 Burdock. Petiv. H. Brit. t. 23./ 1. 



/S. Lappa major, capitulo glabro maxirno. DHL in Raii Syn. 196. 

 y. L. vulgaris major, capitulis foliosis. Pluk. Almag. 205. DHL 



in Raii Syn. 197. 

 L. rosea. Bauh. Prodr. 102, not 210. 

 Rose Burdock. Petiv. H. Brit. t. 23./ 2. 



h. Lappa major, capitulis parvis glabris. Dill, in Raii Syn. 197. 

 L. n. 161,7. HalLHisLv.\.70. 

 Small-headed Burdock. Petiv. H. Brit. L 23. f. 3. 



In waste ground, by way sides, and on dunghills, common. 



The varieties I have not met with. 



Biennial. July, August. 



Root tapering, fleshy. Stem erect, 3 feet or more in height, solid, 

 leafy, round, furrowed, with many wide-spreading branches. 

 Leaves scattered, stalked, broad, heart-shaped, undulated, veiny j 

 three-ribbed at the base ; somewhat hoary and downy beneath. 



