May, 19 1 3. The Irish Naturalist. 85 
FURTHER NOTES ON THE BURNT GROUND 
FLORA OF KTLLINEY HILL. 
BY NATHANIEL COLGAN, M.R.I. A. 
In last year's April issue of this Journal/ an account was 
given of some observations made in the autumn of the 
preceding year on what was termed the renascence flora of 
certain burnt areas on Kilhney Hill, Co. Dubnn, areas once 
densely clad with old gorse and reduced in a couple of hours 
to a vegetable tabula rasa by a fire which broke out on the 
night of July 7th, 191 1. Three months after the fire 
there were found living within these burnt areas 13 species 
of flowering plants, partly survivals from the old root- 
stocks, partly immigrants from adjacent unburnt areas, 
and partly, perhaps, the product of seeds which had retained 
their vitality throughout the fire and within the areas laid 
waste by it. In the present paper it is proposed to give 
a record of some further observations on the flora of this 
burnt ground made at intervals varying from 14 to 18 
months after the fire. 
My first survey of the ground for the year 19 12 was 
made on the ist September, just 11 months after the last 
survey of the preceding year, and 14 months after the 
date of the fire. On this occasion, 39 species of phanero- 
gams and 2 species of cryptogams were found growing well 
within the burnt areas. A second visit on the 6th October 
last added 4 phanerogams, 3 others were added on the 22nd 
December, a further addition of 7 phanerogams and 5 
cryptogams was made on the 26th December, 2 phanero- 
gams were added on the 5th January of this year, and a 
week later, on the 12th January, a final addition of 2 crypto- 
gams was made. A total renascence flora of 64 species, 
(55 phanerogams and 9 cryptogams) was thus found to have 
taken possession of the areas burnt clear of all vegetation, 
eighteen months before. Although the largest number of 
species listed on any one visit was 55, the number observed 
on the 26th December last, it may be assumed that the 
remaining species listed on previous or subsequent visits 
were merely overlooked on this date, and that all 64 species 
^ Vol. xxi., 1912, p. 72. 
