Epping Forest Act, have now grown massive crowns of thick, trunk-like branches with correspondingly large boles. This gives the trees an unusual appearance, not known in other forests. Often the weight of the branches cannot be supported by the parent tree, and the large amount of dead wood in the forest supports numerous rare species of fungi and invertebrates. Predominant tree species are Pedunculate oak ("Quercus robur"), European beech ("Fagus sylvatica"), European hornbeam ("Carpinus betuloides"), silver birch ("Betula pendula") and European holly ("Ilex aquifolium"). Indicator species of long-uninterrupted woodland include service-tree ("Sorbus torminalis") butcher's-broom ("Ruscus aculeatus") and drooping sedge ("Carex pendula") A
Fagus Factory one year before starting work on the Fagus factory) that architects should take account of the way the speed of modern transportation affects the way architecture is perceived. Gropius had also commented the subject in his writings. According to the historian of architecture Annemarie Jaeggi these thoughts were important in the design of Fagus: "The animated fluctuation in height, the change between horizontal structure and vertical rhythms, heavy closed volumes and light dissolved fabrics, are indicators of an approach that deliberately utilized contrasts while arriving at a harmony of opposites in a manner best expressed as a pictorial or visual