VOL. xiv. (2) GLOUCESTERSHIRE PLANTS 109 
rather clayey (possibly the remains of denuded Fullers’ 
Earth), resting on a subsoil of Inferior Oolite, whilst the 
Orchid was growing amongst loose rubble of Inferior 
Oolite on a steep hill-side,* where what little soil there was 
consisted of decayed vegetable matter, chiefly beech leaves. 
An analogous example of a plant found in a locality far 
from its headquarters is to be seen in the case of Euphorbia 
stricta, almost confined to the Tintern District, but having 
a wide European distribution outside Great Britain. 
1 A botanist who has watched the flowers there for some seasons reports that the 
ovaries are never fertile, a fact which may possibly be due to an absence of some special 
insect necessary for fertilisation. 
