242 bYNGEN. — POLYGAM. SUPERF. 



to-lanceolate serrated the upper ones entire, stem herbaceous 



corymbose, scales of the involucre recurved leafy. Light/'. 



p. 473. E.B.t. 1195. 

 Hab. Dry gravelly soils, but rare. Near Blair, in Athol ? Dr. Par. 



sons V. Lightf. FL Sept. Oct. ^ . 

 Stem 2 — 3 feet high. Panicle leafy, with the leaves entire. Lower 



leaves petiolate. Flowers yellow. Florets of the ray very small, 



ligulate. 



** Radiati. 

 25. ERIGERON. 



1. E. acre {blue Flea-lane)^ peduncles alternate (scarcely race- 

 mose) single flowered, pappus as long as the florets of the ray, 

 leaves lanceolate obtuse. Lightf. p. 474. E. B. t. 1 158. 



Hab. Dry mountainous pastures, frequent. Fl, Aug. 1/ . 



One foot to two feet high ; whole plant scabrous, hispid, erect, pani- 

 cled above, and leafy ; Jlowers pedunculate from the axils of their 

 leaves, and terminal. LeareshcXow tapering into a footstalk. Scales 

 of the involucre linear-lanceolate, hispid. Florets of the disk yel- 

 low : of the ray ligulate, purplish. Pappus very long and awny. 



2. E. alpimim {alpine Flea-bane), stems with usually only one 

 flower, pappus much shorter than the florets of the ray, leaves 

 lanceolate. E. 5./. 464, and <. 2416 (E. iiniflorum). 



Hab. Rocks on Ben Lavvers^ Mr. Dickson. Banks of the Almond, 

 above the bridge, G. Don. Fl. July. 2/ . 



Hairy or hispid like the last ; but with much longer leaves in propor- 

 tion ; 3 — 5 inches high, simple, with rarely more than one fower 

 at the summit, which is yellow in the centre usually, and purple in 

 the rav. Smith gives to the E. imifiorum the character of " florets 

 of the ray erect;" so they are frequently in E. alpinum ; and as I 

 can see no other mark either in Smith's figure or in the specimens 

 that I have received froip the dicoverer Mr. G, Don, I feel little he- 

 .sitation in uniting the two. 



26. TUSSILAGO. 



* Floivers rayed. Scape single-lowered. 

 1. T. Farfara {CoW $-foot) , scape single-flowered, imbricated 



with scales, leaves cordate angular toothed downy beneath. 



Lightf. p. A15. E. B. t. 429. 

 Hab. Moist and clayey soils, frequent, and very injurious to ploughed 



lands. H. March, April. %. 

 Root thick, excessively creeping. Leaves radical, appearing after the 



bright yellow flowers, white and downy beneath. Scapes \'«ry 



downy. This down of the stems and leaves makes good tinder. 



The leaves themselves have been u-^ed medicinally as an infusion, 



or smoked like tobacco to relieve pulmonary disorders. 



*'''■ Floivers all tubular. Scapes many-fowered. 

 2. T. Petasites {common Butter-bur), thyrsus ovato-oblong, 

 leaves cordate unequally toothed witii the lobes approximate 



