A lily-disease. 
BY 
H. MARSHALL WARD, M.A., F.R.S., F.L.S. ; 
Fellow of Christ's College , Cambridge ; and Professor of Botany in the Forestry 
School , Royal Indian College , Cooper s Hill. 
With Plates XX, XXI, XXII, XXIII, XXIV. 
OR several years past I have been greatly interested and 
Jl puzzled by a certain type of small discoloured spots on 
the leaves, stems, and other parts of various plants, and during 
the summer of 1886 I had frequent opportunities of noticing a 
particular class of these discolourations in the form of orange- 
brown and buff specks which appeared on the stems, pedicels, 
leaves, and buds of the white lily ( Lilium candidum) growing 
in my garden. Some attention was also paid to them by me 
in 1887. 
These spots, similar to those on the bracts in Fig. 1, and on 
the bud in Fig. 2, perplexed me exceedingly for a long time, 
and it seemed as though they would have to be relegated to 
the large limbo of apparently inexplicable phenomena which 
continually present themselves to the working pathologist. 
Occasionally I found small tufts of a fungus springing from 
the spots, but it was doubtful whether this was not a sa- 
prophyte. Sections through the spots showed, as a rule, no 
more than is shown in Fig. 51, i. e. a depressed area of dead 
and discoloured cells, but in one or two cases I found what 
looked suspiciously like a definite mycelium in the dead 
tissues, as shown in Fig. 52. 
[Annals of Botany, Vol. II. No. VII. November 1888. ] 
