74 MR. W. WEST : ECOLOGICAL NOTES. 
In the upper part of Glen Coe, under Ben Atta (average rainfall 82 inches, 
216 rainy days on an average), lower down the .glen, an old solitary 
weather-beaten storm-pollarded holly, above 90 centimetres in diameter at 
100 centimetres from the ground, was examined: it bore two branches 
45 centimetres in diameter. It was fairly well clothed (for a holly) with a 
mixed association of Dieranum scoparium, Stereodon compressiformis, уаг., 
Grimmia hypnoides, Parmelia physodes, P. saxatilis, Р. perlata, Lecanora 
tartarea, Platysma glaucum, Cladonia cervicornis, Psoroma hypnorum, Per- 
tusaria communis, and Spherophoron coralloides in smaller quantity, with 
tufts of two other species of Cladonia. 
In a wood near Loch Awe, towards the Pass of Brander (rainfall about 
82 inches, rainy days about 237), some Oaks about 45 to 50 centimetres in 
diameter bore :—Stereodon cupressiformis var. filiformis (45), Frullania 
dilatata (30)—mostly on windward side, Lobaria pulmonaria (5), Pertusaria 
globulifera (2), Isothecium myosuroides (5), with smaller quantities of Leca- 
nora tartarea, Cladonia squamosa, and a little Mnium hornum about the base. 
Some of the high branches of these, which had been blown off during a gale, 
were about one-third covered with Stereodon cupressiformis var. filiformis 
(25), Parmelia savatilis (4), P. perlata, Usnea ceratina, and Weissia ulo- 
phylla (3). 
Another lot of Oaks about 30 centimetres in diameter had Frullania 
dilatata as the chief epiphyte on the lower 3 metres, with Stereodon cupressi- 
formis var. filiformis as the chief one in all the upper part. Many younger 
Oaks were examined which showed a considerable amount of sub-bareness, 
with scattered patches of crustaceous lichens, as Lecidea parasema, Pertusaria 
Wulfenii, Opegrapha atra, &c., but the most conspicuous epiphyte was Frul- 
lania dilatata ; scattered tufts of Weissia ulophylla and W. Bruchii were 
present, and all round the base was a varying mixture of Jsothectum myo- 
suroides and Stereodon cupressiformis. i 
Some Birches about 45 centimetres in diameter were only sparsely covered 
with epiphytes. Stereodon cupressiformis was chiefly on the leeward 
side, and there were scattered tufts of Dicranum scoparium and patches of 
Frullania dilatata, with Cladonia digitata and Mnium hornum about the base. 
Some Alders a little lower down the slope were about half covered with 
a mixture of the following, the first being the most abundant :—Stereodon 
cupressiformis var. (especially on the leeward side), Parmelia sulcata, and 
scattered patches of Frullania dilatata, Weissia ulophylla, W. Bruchii, 
Parmelia perlata, P. fuliginosa var. letevirens, Pertusaria Wulfeni, Lecidea 
parasema, and Dicranum scoparium, the latter chiefly in the lower part. 
The old stumps of a number of trees were completely covered with the 
following chiefly :—Stereodon cupressiformis, the type (50), Hylocomium 
proliferum (25), Thuidium tamariscinum (25), and a few tufts of various 
species of Cladonta. 
