INDIVIDUAL SPECIES, 51 
results show that it was decreasing in the pasture. This decrease 
had not proceeded very faron Area 7 at 44 years, but the plant 
was less widely distributed on Area 6 at 54 years. 
Except on Area 1, where it had specific frequencies of 7 and 
10 at 34 and at 4} years respectively, the plant was rarely 
recorded on the other areas. 
Potentilla anserina. 
This was chiefly met with on Area 2, where its maximum 
Sp. fr. was 24 at 84 years. This seems to be abnormally high, as 
on the same area its Sp. fr. was 8 and 9 at 54 and ro years 
respectively, 
It was not recorded on the slightly lighter soils of Argas 5, 6, 
7 and 8. 
Taraxacum vulgare. 
Traces of this plant were found on Area 6 at 74 years, but 
otherwise it was not recorded on Areas 6,7 and 8. Its chief 
development was on Areas 2 and 4, and on Areas 1-4 its Sp. fr. 
seemed to be increasing with the age of the pasture. 
Chrysanthemum Leucanthemum.—This was chiefly recorded 
on Area 2, and it appeared to be decreasing with the increased 
age of the pasture. 
Polygala vulgaris—This plant was recorded in minute 
quantities on Area 2 at 74 years and later, and on Area 4 at 134 
years, but otherwise it was not recorded except to a small extent 
on Area 6 at 54 years, and on Area 8, where it hada Sp. fr. of 
to. It is obviously a plant of the older pastures and the grass- 
heath. 
Veronica officinalis—This was also recorded on Area 2 in 
minute quantities at 84 years and later, and also on Area 4, It 
had a Sp. fr. of 22 on Area 8, and it was represented on Areas 
6 and 7. On these areas, it seems to come in sooner than 
Polygala vulgaris, but it is primarily a grass-heath plant. 
Viola ¢anina,—This is also a grass-heath plant, but it was 
