254 
ON THE OCCURRENCE OF PED/CULARIS PALUSTRIS L. 
EN MASSE. 
W. J. FORDHAM, 
Bubwith, 
WHEN on the bank of the River Derwent, near Bubwith, East 
Yorks., on June 4th, Mr. E. Snelgrove of Sheffield and I were 
surprised to find large masses of Pedicularis palusins L., 
growing in the carrs by the river side. The purple here caused 
by this plant en masse, showed up well in its setting of golden 
buttercups, and was clearly visible from the turnpike road 
at a distance of half a mile. I visited the locality a few days 
after, when I sketched the accompanying plan, which is 
NORTH DUFFIELD 
HALL, 
+ 
@ oo» + 
DUFFIELD CLOUGH DUFFIELD CARRS ZEE 
f PD) 
The plan represents one mile in width. 
+ (crosses)=isolated small colonies. 
Crosshatching =P. palustris practically only plant in area. 
Dots=other plants. 
modelled on the six-inch ordnance survey. Being drawn to 
scale, it will give a better idea of the luxuriance of the plant 
than any detailed description. The drains are indicated 
on the maps, and the distribution and extent of the Pedicularis 
can be seen at a glance. 
The outstanding colour of the surrounding vegetation was 
golden, owing to the presence of Ranunculus acris L. in the 
drier parts, and Ranunculus repens L., and R. fammula L. 
in the wetter parts. The drains were choked up with a luxu- 
Naturalist, 
