104 TUSSILAGO. No. 92. 



No. 92. TUSSILAGO FRIGIDA. 



Barnes. Boreal Coltsfoot- /V- Tussilageglaciale. 



Classify Nat- Order of Corymbiferotis. Sjngenesia 

 superflua L. 



G^nus TussiLAGo. Perianthe simple, equal, multipar- 

 tite, membranaceous, swelled befow. Phoranthe naked. 

 Pappus simple sessile. Manv narrow female rays. 



Sp. Tussilago frigida. L. Jladical leaves on long pe- 

 iioles, cordate, unequally toothed, woolly beneath. 

 * Scapes multiflore, thyrsus oblong fastigiate bracteate, 

 flowers radiate. 



DESCRIPTION. Root perennial. Leaves all radi- 

 cal, petioles long, thick, canaliculate j leaves cordate 

 rounaed or subdeltoid, nearly obtuse, many unequal 

 teeth, green and rugose above, woolly and white be- 

 neath. Scape longer than the leaves, terete and thick, 

 9 to 12 inches hign, with some remote lanceolate acute 

 scales J many flowers, forming a thyrsus or oblong ra- 

 ceme, peduncles shorter than the flowers, axillary to su- 

 bulate bracts, rays white, disk purple. 



HISTORY- A genus with many anomalies, often po- 

 lygamous or dioical, with evident or obsolete rays, 

 whence the subgenera l^Farfara^ flowers radiate- 2, Pe- 

 tasites, flowers discoidal. 3. ^nandria^ dioical. This 

 species is a native of the boreal regions of the three con- 

 tinents, Europe, Asia, and America, in the mountains of 

 Lapland, Norway, Siberia, Canada, Maine, Labrador, 

 Greenland, &c. It blossoms in June. We have also in 

 America the common Coltsfoot or T. farfara of Europe, 

 found in New England, New York, Ohio, &c. It blos- 

 soms in April, before the leaves spring up ; easily known 

 by its yellow radiate flowers, scapes uniilore and scaly, 

 leaves cordate, angular. Both species will be included 

 here, havin^similar medical qualities. Tussilago. de- 

 '^^'^l>V^?I'^ ^^^^*'' ^^ Cough, as useful for it 

 rllJ^fu^^^'^^^^- The"^ whole plants are used, but 

 :l!:r.VT ^^^^^ ^^d leaves ; their smell and taste 



y- 



VZlxn^^^J^''^''^ aromatic, bitterish, austere, and mu- 

 cila^inous. They contain mucilage, extractive, tannin, 



