; opposite each other, and divided into 7-10 segments. Our 
REVISION OF THE NATURAL ORDER HEDERACE.;E. 305 
be known by its uppermost leaves being cordate, its umbels arranged 
in panicles, rarely and only in young plants in simple racemes, and its 
pedicels and calyx being covered with white stellate hair, the hair 
having from 13-15 rays. To this must probably be 
referred what is called in gardens Scotch or Irish Ivy. 
/ It is a much quicke-rgrowing plant than H. Helis, 
and on that account more frequently planted in gar- 
dens, but is much more susceptible to cold, and in 
Germany often killed by frost. At some time or Hair of H. Cana- 
other this species is said to have been introduced into rieiisi 
Ireland, and has hence received the name of Helix Hibernica in our 
gardens; but I have not been able to learn anything authentie about 
this introduction, or whether it has been introduced at all. At present, 
Dr. Moore, of Glasnevin, informs me it is found, to all intents and 
purposes, wild in various parts of Ireland, growing together with H. 
Heliz, and far away from cultivation. Mackay, no great authority in 
critical plants it is true, also mentions it as having been found in Ireland. 
I have not been able to examine any specimens of wild Irish Ivy, and 
our British Floras do not afford any information respecting it. 
The Asiatic Ivy is Hedera Colchica, C. Koch. It is not found out 
of Asia, and may be known by its uppermost leaves being elliptical or 
lanceolate, its umbels arranged in simple racemes, and its pedicels and 
calyx being covered with yellowish 2-lobed scales, the lobes being 
first knowledge of this Plant is derived from Kempfer, who, 
two centuries ago, found it in Japan, where it is called “ Fo- 
togi Tsta (i. e. simulacri seu idoli Hedera).”’ It was after- 
wards gathered by Wallich and other collectors in the Hima- 
laya Mountains, by Fortune in Northern China, by Wright 
in the Loochoo Islands, and by C. Koch in the trans- H. P oleis. 
Caucasian countries. Wallich was the first to describe thè plant, 
though he did not venture to separate it from H. Helix; in fact, the 
important character furnished by the scales escaped him. It was not 
until 1859 that C. Koch, who had seen it wild, named it Hedera Col- 
chica, aud gave a correct diagnosis of it. It is owing to an authentic 
specimen kindly transmitted by him that I am able to identify this 
new species with the Asiatic Ivy,—as I am indebted to the Rev. 
R. T. Lowe for a sight of the Madeira Ivy. Hedera Colchica is now 
VOL. II. [OCTOBER 1, 1864. ] x 
