MR. W. WEST : ECOLOGICAL NOTES. 
Eight lots of Ashes 
in varied situations, near Lamlash. 
69 
| | 
About Near | | Near 
ae 45 cms. in| bank of | | bank of 
Name of epiphyte. diameter.| stream. | stream 
а. b. c. d. e. 9. | А. 
Mostly Mostly | 
| Mostly} in on side Chiefly 
| near | lower| Mostly near | | in lower 
| base. | part. | below. | stream. | | part. 
Stereodon cupressiformis, var, filiformis. 12 | 10 10 25 10 25 30 to 40 
Stereodon resupinatus ..................... 8 | 
Weissia phyllantha 10 3 10 
Mostly 
on side 
away 
from | 
| stream. | 
Frullania dilatata а 10 | 15 25 3 
Radula complanata 3 10 | 
Pertusaria sp. (barren) ..................... | 8 | 
| 
Pertusaria fuginea... s | 5 
Parmelia fuliginosa, var. letevirens ... 20 | 
Parmelia perlata . 10 
Parmelia levigata ...... esses 10 6 3 
Parmelia sulcata 7 
Parmelia saxatilis ............ ы 5 8 
Lecanora subfusca ........................... 5 | 3 3 5 
Lecidea parasema |... esee 3 2 A little. 2 6 
Evernia Prunastri......................... | 10 
Cladonia fimbriata... n... ceecee 3 6 
Cladonia pyridata sl зе vee | 3 m 4 | 
|About|About| About About| About | About About | 
Sub-bareness..... esse e| 50 55 45 | 55 65 30 75 | 45 to 55 
| 
Average approximate percentages of the two chief epiphytes: Stereodon 
cupressiformis 16, Frullania dilatata 63. 
Near Corrie, Isle of Arran (see p. 70). 
In smaller quantity on some of the Ashes and Birches, the following 
also occurred :—Stereodon resupinatus, 
Weissia ulophylla, 
И’. Bruchii, 
Orthotrichum Lyellii, Zygodon viridissimus, Ramalina farinacea, Lecidea 
parasema, Plagiochila punctata, and P. asplenioides. 
The average approximate percentages of the three chief epiphytes on the 
above were :—Stereodon cupressiformis, 24 on Ash, 10 on Birch, 163 average 
of both; Parmelia fuliginosa var. letevirens, 15 on Ash, 10 on Birch, 
121 average of both; Parmelia saxatilis, 131 on Ash, 30 on Birch, 
221 average of both. 
