﻿(139.) 



PETASI'TES* * * * § . 



Linnean Class and Order. Syngene'sia§, Polyga'mia, Su- 

 pe'rflua +. 



Natural Order. Composite § ; tribe, Corymbiferas|| ; Juss . — 

 Lindl. Syn. pp. 140 & 142.; Introd. to Nat. Syst. of Bot. pp. 197 

 & 199. — Composite; subord. Jacobete; Loud. Hort. Brit. pp. 

 520 & 521. — Synanthe'rete ; tribe, Corymbifer^e ; Rich, by 

 Macgilliv. pp. 454 & 455. — Corymbifer.®, sect. 2. Juss. Gen. PI. 

 pp. 177 & 180. — Sm. Gr. of Bot. pp, 121 & 123. Engl. FI. v. iii. 

 p. 334. — Syringalks ; subord. Asteros^e ; type, Asteracea;; 

 Burn. Outl. of Bot. pp. 900, 901, & 926. 



Gen. Char. Nearly diaceous. Involucrum ( common calyx ) 

 (see fig. 2.) cylindrical, imbricated with two rows of spear-shaped 

 scales. Corolla compound, discoid ; florets (figs. 3 & 4.) all tu- 

 bular, with 5, rarely but 4, equal segments. Filaments (see fig. 3.) 

 5, very short. Anthers (see fig. 5.) united into a cylindrical tube. 

 Germen (see figs. 4 & 5.) inversely egg-shaped, often imperfect. 

 Style (see fig. 5.) thread-shaped. Stigmas (see figs. 4 & 5.) 2, 

 prominent, strap-shaped when perfect, thick and short when abor- 

 tive. Seed-vessel none, except the hardly altered, finally reflexed 

 calyx. Seed oblong, compressed. Down (pappusj (fig. 6.) sim- 

 ple, sessile. Scape many-flowered. 



Distinguished from Tussilago (see folio 91.) by the discoid co- 

 rolla. and many-flowered scape. 



One species British. 



PETASI'TES VULGA'RIS. Common Butter-bur^f. Pestilent 

 Wort**. 



Spec. Char. Panicle dense, egg-oblong. Leaves heart-shaped, 

 unequally toothed, 3-ribbed at the base, the lobes approximating, 

 downy beneath. 



Parkinson’s Theatrum Botanicum, p. 419. — Gray’s Nat. Arr. v. ii. p. 473. — 

 Hook. Brit. FI. p. 359. — Bab. FI. Bath. p. 25. — Tussilago Petasites, Eng. Bot. 

 t. 431. — Curt. FI. Lond. t. 134.— Linn. Sp. PI. p. 1215.— Huds. FI. Angl. 

 (2nd ed.) p. 364.— Sm. FI. Brit. v. ii. p. 880. Engl. FI. v. iii. p. 425. — With. 

 (7th ed.) v. iii. p.934. — Lind. Syn. p. 147. — Lightf. FI. Scot. v. i. p.477. — Sibth. 

 FI. Oxon. p 261. — Abbot’s FI. Bedf. p. 181. — Port. Midi. FI. v. ii. p. 408. — 

 Relh. FI. Cant. (3rd ed.) p. 340. — (look. FI. Scot. p. 242. — Grev. FI. Edin. p. 

 177. — FI. Devon, pp. 138 & 159. — Rev. G. E. Smith’s PI. of S. Kent, p. 47. — 

 Walk. FI. Oxf. p.239. — Mack. Catal. of PI. of Irel. p. 73. — Petasites, Ray’s 

 Syn. p. 179. — Johnson's Gerarde, p. 841. — Var. p. T. Petasites fecmina, Hook. 

 FI. Lond. t. 129. — T. hybrida, Eng. Bor. t. 430 — Linn. Sp. PI. p. 1214. — Huds. 

 FI. Angl. (2nd ed.) p. 364. — Sm. FI. Brit. v. ii. p. 879 — Lightf. FI. Scot. v. i. 

 p. 476. — Pert. Mull. FI. v. ii. p. 408. and v. iii. p. 376.— Perry’s PI. Varvic. 



Fig. 1. Petasites vulgaris, Var. a. — Fig. 2. Three Flowers of Var. 8- — Fig. 

 3. A separate Floret, opened vertically to shew the stamens. — Fig. 4. A se- 

 parate Floret, shewing the germen and pappus. — Fig. 5. The Stamens, Ger- 

 men, Style, and Stigma. — Fig. 6. Seed and Pappus. 



* From petasos, Gr. a covering to the head, or an umbrella ; from the great 



size of its foliage: Dr. Hooker. 



+ See Tussilago fdrfara, f. 91. n.f. 4 See Achillea Ptarmica, f. 36. n. 4. 



§ See Prendnthes muralis, f. 27, a. || See Achillea Ptarmica, f. 36, a. 



If From the leaves being used formerly to wrap up butter in. 



** From its supposed efficacy in the plague. 



