ECOLOGY OF WOODLAND PLANTS. 833 
Ecology of Woodland Plants in the N guo póod of 
Huddersfield. (Figs. 1-70.) By T. W. Woopuk4p, F.L.S.* 
[Read 15th December, 1904.] 
TABLE or CONTENTS, 
Introduction: p. 333. 
Ecology in Britain: p. 335. 
I. Woodland Vegetation Maps: p. 336. 
(a) A typical Mixed Deciduous Wood in the Coal-Measure 
Area: p. 336, 
Maps showing distribution of Dominant Trees, Bracken 
(Pteris aquilina), Bluebell (Seitla festalis), Soil and Grasses, 
(b) A typical Mixed Deciduous Wood of the Plateau and 
Slopes of the Millstone-Grit Area: p. 347. 
Distribution of the Dominant Woodland Trees and Plants of 
the Undergrowth in the Huddersfield District: p. 350. 
(a) Cotton-Grass Zone of the Moss Moor: p. 357. 
(^) Heather Zone of the Millstone-Grit Plateau: p. 960. 
(c) The Coal-Measure Area: p. 362. 
Distribution of the Plants of the Millstone-Grit and Coal- 
Measure Areas as affected by Soils: p. 363. 
IL. Effect of Environment on Structure: p. 366, 
(a) Dominant Species :— 
Pteris aquilina, Leaf, Leaf-stalk, Rhizome: p. 368. 
Scilla festalis, Leaf, Abciss-layer, Elongated Bulbs: p. 379. 
Deschampsia flexuosa, Leaf: p. 388. 
Holcus mollis, Leaf: p. 385. 
Vaccinium Myrtillus, Leaf: p. 387. 
(b) Secondary and Subordinate Species :— 
Heracleum Sphondylium, Leaf: p. 891. 
Lamium Galeobdolon, Leaf: p. 393. 
Mercurialis perennis, Leaf: p. 394. 
Summary : p. 395. 
Bibliography : p. 399. 
List of Illustrations: p. 404. 
INTRODUCTION. 
Tue study of plant associations is being vigorously proseeuted 
in Britain at the present time, and several parts of the country 
have been surveyed. These surveys cover fairly extensive areas, 
and the results so far have been indicated on 3-inch or 1-inch to 
the mile maps. 
The aim of the present investigation has been to pay special 
attention to a small area and examine in some detail features 
* This paper has been accepted as a dissertation for the degree of Ph.D, by 
the University of Zürich. 
LINN. JOURN.—BDOTANY, VOL. XXXVII. 2B 
