136 BOTANICAL SOCIETY DF EDINBURGH.  [Szss. uxx. 
S. repens, S. scaposus, var. cwulescens, S. artieulatus, and 
S. echinatus, 
H. F. Taae, F.L.S., showed several preparations illustrating 
the development of Marsilea. 
. Dr. A. W. Borruwick exhibited several species of Fungi, 
including Larch-canker on the Japanese Larch, This disease, 
Peziza Willkommii, was found to be abundant in a wood 
of this tree previously supposed to be comparatively immune. 
The following communication was read :— 
THE Exrra-TROPICAL TREES OF ARRAN.’ By the Rev. 
Davip LANDsBorouGH, LL.D., Kilmarnock. 
THE title extra-tropical is suggested by the use of this word 
in the celebrated work of Baron Miiller, and the cireumstance 
that foreign trees growing in the island of Arran are more 
frequently mentioned by him than those of any other place 
in Scotland (thirteen references). See “ Select Extra-Tropical 
Plants,” by Baron Ferd. von Miiller (Australia), ninth edition, 
1891. 
While trees growing in Arran are my subject, these will bé 
illustrated by ee to trees of the same species growing 
in other parts of Scotland. 
My father, the Rev. Dr. Landsborough, Stevenston, an 
enthusiastic naturalist, made the island of Arran the special 
field of his investigations. From boyhood I was frequently 
there, and when I grew up I formed connections which made 
me intimate with most of the prominent persons residing 
there, and specially with James Paterson, Esq., Commissioner 
on the island to His Grace the Duke of Hamilton. I had 
three brothers in Australia, one of them a celebrated explorer 
(see a river, a town, and a county there named after him, 
as also a river in New Zealand). My brothers were in the 
habit of sending me seeds of various kinds, and, knowing that 
the plants I raised from them would not succeed in Ayr- 
shire, I naturally thought of Arran, where, through my 
friends, nearly all the places on the east of the island were 
1 All i age : 
