250 
XLVI. COMPOSITE : CORYMBIFERiE. [ TuSSil&gO. 
fertile plant. The early blossoming *of this rank weed induces the 
Swedish farmers to plant it near their bee-hives. Thus we see in 
our gardens the bees assembled on its affinities, P. alba and fragrans, 
at a season when scarcely any other flowers are expanded. 
[Of Homngyne alpina Cass, or Tussilago alpina L., there is a speci- 
men in Herb. Brodie, from G. Don, with the following station at- 
tached to it : “ On rocks by the sides of rivulets on the high mountains 
of Clova, as on a rock called Garry-barns and the same is mentioned 
in Headrick’s Agric. of Forfarshire ; but we are not on that account 
prepared to admit the plant as indigenous. P. fragrans Presl is 
said to be naturalized in some places in the south of England and 
Wales : this is Tuss. fragrans L. and Nardosmia fragrans Reich. 
Nardosmia differs only from Petasites by the pistillate florets having 
a ligule, which however is sometimes minute.] 
Subtribe II. Radiate. Heads with a ligulate ray. (Tab. IV. D.) 
(G.en. 34—46.) 
* Pappus pilose in the florets of the dish, sometimes wanting in 
those of the ray. (Gen. 34 — 42.) 
34. Tussilago Linn. Colt’s-foot. 
Heads monoecious, all alike. Achenes terete. Pappus pilose. 
Florets of the ray long, narrow, numerous in many rows; of the 
disk few, sterile (both yellow). Anthers without bristles at 
the base. Receptacle naked. Involucre formed of a single row 
of equal linear scales. (Scapes single-flowered, appearing before 
the leaves .) — Name altered from tussis, a cough; in the cure of 
which the plant has been employed. 
1. T. Fdrfara L. (Colt's-foot) ; scape single-flowered imbri- 
cated with scales, leaves cordate angular toothed downy beneath. 
E. B. t. 429. 
Moist and clay soils, too abundant. 3, 4. — Flowers yellow; 
florets of the disk few. The down of the leaves makes good tinder. 
The leaves themselves have been used medicinally, as an infusion, or 
smoked like tobacco, for the relief of asthma. 
35. Erigeron Linn. Flea-bane. 
Achenes compressed. Pappus pilose, rough. Florets of the 
disk fertile ; of the ray numerous in several rows, very narrow 
(of a different colour from the disk). Receptacle naked. Invo- 
lucre imbricated with linear scales. Anthers without bristles 
at the base. — Named from tip i, early, and yepwv, an old man; 
from the early ripening of the gray seed-down. 
1. E. * Canadensis L. ( Canada F.) ; usually hairy, leaves 
lanceolate nearly entire harshly ciliate, heads numerous paui- 
cled, ray shorter than the involucre. E. B. t. 2019. 
