Pyret/u-um.] COMPOSITE. 119 



T. Petasites, Linn.E. Bot. t. 431. p. Flowers fertile, bearing 

 seed, rarely stamens. T. hybrida, Linn. E. Bot. t. 430. 



Wet meadows to which it is very injurious, and river-sides. FL 

 April, May, before the leaves appear. 1. Root extensively creeping, 

 and thus multiplying the plant. Leaves very large. Flowers of a 

 pale flesh colour ; smaller, more lax, and in a longer thyrsus in the fer- 

 tile plant. Dr. Hooker remarks, that Mr. Wilson who studies nature 

 deeply, suggested to him the propriety of distinguishing this as a 

 genus from T. Farfara, without being aware that it had been already 

 done by Desfontaines, and confirmed by Cassini, and further states, 

 that the early flowering of this plant induces the Swedish farmers to 

 plant it near their bee-hives, and that we see in our gardens the bees 

 collected on its affinities, P. albus, and fragrans ; at a season when 

 scarcely any other flowers are expanded. 



12. BELLIS. Linn. Daisy. 



Involucre hemispherical, simple, its scales all equal in length. 



Receptacle naked, conical. Pappus none. Named from 



bellus, pretty. Syiigenesla. Superflua. 



1. B. perenniS) Linn. Common Daisy. Scape naked, 

 single-flowered; leaves spathulate, obovate, crenulated. J8r. 

 FL 1. p. 365. E. Fl. v. iii. p. 447. E. Bot. t. 424. 



Pastures, frequent. Fl. from the early spring to the end of autumn. % . 



13. CHRYSANTHEMUM. Linn. Ox-eye. 



Involucre hemispherical, imbricated with scales whose margins 

 are membranaceous. Receptacle naked. Pappus none. 

 Name; x/ )V<TOS > gold, and avOos, a. flower, from the colour of 

 the blossoms in some of the species. 



Syngenesia. Superflua. 



1. C. LcucantJicmum, Linn. Great Ox-eye Daisy. Leaves 

 clasping the stem, oblong, obtuse, cut, pinnatifid at the base ; 

 radical ones obovate, stalked. Br. Fl. I. p. 365. E. Fl. v. iii. 

 p. 449. E. Bot. t. 601. 



Dry pastures, abundant. Fl. June, July. %. Stems 12 feet high. 

 Flowers large, their dish yellow, the ray white. 



2. C. segetum, Linn. Corn Marigold, yellow Ox-eye. Leaves 

 clasping the stem, glaucous ; jagged upwards; toothed at the 

 base. Br. Fl. 1. p. 365. K Fl. v. iii. p. 449. E. Bot. t. 

 540. 



Corn fields, frequent. Fl. June Aug. Q. One foot or more high. 

 Flowers large, deep yellow. 



14. PYRETHRUM. Hall. Feverfew. 



Involucre hemispherical, imbricated with scales whose margins 

 are membranaceous. Receptacle naked. Fruit crowned with 



