Orchid mycorrhiza allowed for the identification of specific taxa forming symbiotic relationships which are of interest in the study, cultivation, and conservation of orchids. This is especially important in the trade and preservation endangered species or orchids of commercial value like the vanilla bean. There have been seen trends in the type of symbioses found in orchids, depending primarily on the life-style of the orchid, as the symbiosis is primarily of benefit to the plant. Terrestrial orchids have been found to commonly associate with Tulasnellaceae, however some autotrophic and non-autotrophic orchids do associate with several ectomycorrhizal fungi. Epiphytic fungi, however, may associate
Cleeve Common several types of grassland within the site and their origination is dependent upon aspect, soil, grazing intensity and how areas of the common have been managed. The site supports several species of rare orchid such as the bee orchid, the frog orchid and the musk orchid. Spoil and scree from disused quarries provide conditions for plants which grow in more open habitats. The site supports a wide range of invertebrates. These include butterflies such as the dark green fritillary, grayling and marsh fritillary. The rare snail "Abide secale" is recorded. The "Bouguetia" and "phillipsiana" beds of the upper Middle Inferior