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UPPER TEESDALE. 
Some fifty years ago it was suggested that here was no 
district in the British Isles which contained so many rarities 
to the acre as the valley of the Upper Tees. Though such 
a statement may not be quite correct, there can be no doubt 
that this area abounds in good things. At least three plants 
found in Upper Teesdale are found no where else in the 
British Isles, while two others are only to be seen elsewhere 
on Ben Lawers. I found about 200 plants which might 
fairly be classed as uncommon during the first fortnight of 
June, 1927. The four photographs attached, which show 
interesting localities within easy distance of the Langdon 
Beck Hotel, are as follows : — 
(1) The Top of Widdy Bank Eell. Much of the fell 
country is covered with deep Sphagnum bog embedded in 
which logs of birch and other trees may be found — remains 
of the woodland which once covered the higher parts of 
our northern hills. In places, however, rocks and soil are 
still to be seen, particularly on the tops of the fells and in the 
valleys. Such a spot is shown in No. 1. The tufts consist 
of Kobresia cancina, J uncus triglumis, Thalictrum alpinum, 
Carex pitlicaris, and in one certain similar locality Arenaria 
idiginosa. Lister a cor data occurs in the open ground close 
to the Cal tuna banks, and Eriophorum vaginatum in the damper 
more boggy parts. 
(2) A Sugar Limestone Hillock on Cronkley Fell. 
The sugar limestone is aptly named, and consists of small 
crystalline fragments of limestone denuded away from the 
underlying rocks. It occurs in a limited area on Cronkley 
Fell, and is the home of many rarities. Helianthemum canum 
var. vineale occurs in fair plenty in its only British station 
on some of these hillocks. I was unable to find the hybrid, 
although a small form of H. Chamaecistus occurs with it. 
Dryas octopetala grows here, but rarely flowers, while not far 
away may be found Polygala amarella. 
(3) The Winch Bridge is in the valley of the Tees some 
600 feet nearer sea level than the tops of Cronkley and Widdy 
Bank Fells, and of course the vegetation is of a totally different 
type, though scarcely less interesting. A small variety of 
Solidago Virgaurea occurs on the rocks. Sorbus rupicola 
is abundant overhanging the river. Antennaria dioica is 
fairly plentiful, while in the wooded parts Melampyrum 
sylvaticum and M . pratense var. hums may be found. On 
