19 
Townsend’s specimens are a little larger than the smallest of those 
from Orkney. A small form of 0. vulgatum, collected by Mr. A. G. 
More, at Garryland, co. Galway, comes very near this in point of size, 
but the stem-frond is broadest near the base, and the accessory root- 
frond of var. ambiguum is absent, at least in the specimens which he 
has communicated to me.” — J. Boswell Syme. 
April 8th, 1871. 
B 
