380 SYNGENESIA— POLYGAM.-^QU. Arctium. 



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

 form ; Jlorets 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 oif entire. Seed 

 I to each floret, inversely pyramidal, with 4 unequal 

 blunt angles, abrupt. Doison 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^owers. 



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



Leaves stalked, heart-shaped, wavy, without prickles. Cal}-x 

 when in seed nearly smooth. 



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



Comp. ed.4.\33. Engl. Bot. ?;. 1 8. <. 1 228. Curt. Lond. fasc. 4. 



<.55. M^oodv.t. 15. Hook. Scot. 235. 

 Lappa n. ) 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./. I. 



/3. Lappa major, capitulo glabro maximo. Dill, in Raii Syn. 196. 

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



in Raii Syn. 1 97. 

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

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

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



L. n. 161,7. -^"^'- '^"'- "■ ^ • ''^• 



Small-headed Burdock. Petiv. H. Brit. t. 23./. 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 ; 



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



