The Botany of Iceland - 01.12.1942, Page 371

THE PTERIDOPHYTA AND SPERMATOPHYTA OF IGELAND
369
spreads to new localities; often in great abundance. Usually growing around inhabited
places, and also sometimes found outside cultivated areas, in fell-field and similar
localities, where it occurs in dwarfy specimens. See fig. 175.1
Life-form : Th.
In and around towns and farmsteads, in roads, waste places, etc.
Flor. VII—IX; fr. mat. VIII—IX.
Max. height: 35 cm ; average : 20 cm.
Geogr. area: Am.: Nova Scotia and Massachusetts to Missouri. Alaska to California.
—Greenl.: W. (accidentally introduced) occurring up to 69° N. lat,-—Eur.: Fær.;
E.S.I. ; Scandinavia from about 67° N. lat., southward throughout Eur.—Northern
Asia.
Petasites hybridus (L.) Gaertn.
P. ovatus Hill., O. & Gr., 1934, p. 142.
In Akureyri, N., this plant has been growing, and often flowering, for a consider-
able number of years outside a garden in a home-field (Ing.Ósk., 1929a, p. 48,
and 1932, p. 40). It has presumably been accidentally introduced, and cannot be
regarded as a native of Iceland.
Senecio Jacobaea Linn.
Baring-Gould, 1863, p. 429.—Babington, 1871, p. 314.
Baring-Gould cites it as growing “on the heithies”, and Babington records it on
Solander’s authority from “Reikjum”, but doubts it having really been found; if
this be the case, it must certainly have been some accidentally introduced specimens.
1 One locality: Borgarnes, W. (Johs. Lid in literis, 1942) has not been entered
upon the sketch map.
The Botany oí Iceland. Vol. IV. Part I.
24