Polypodium glycyrrhiza very often associated with Acer macrophyllum. The fern is mycorrhizal, meaning it can form root associations with the hyphae of fungi. The sweet flavor of the rhizome was once attributed to the glycoside glycyrrhizin. However, a study has shown that the flavor may actually be due to polypodoside, which is 600 times sweeter than 6% sucrose solution. Licorice fern is cultivated as an ornamental garden plant. The cultivar 'Longicaudatum' has gained the Royal Horticultural Society's Award of Garden Merit. The licorice fern is sometimes valued for its licorice-flavored rhizome. Occasionally it is chewed, and it can also be brewed into
Yorkshire Subterranean Society 40th anniversary in 2004 at the Kings Croft Hotel, Pontefract. The YSS was formed by a group of enthusiasts in October 1964 initially calling themselves "The Undertakers Subterranean Society". After adverse publicity, they changed their name to the Yorkshire Subterranean Society in August 1965. Yorkshire Subterranean Society The Yorkshire Subterranean Society is a caving club based at Helwith Bridge near Horton in Ribblesdale in the Yorkshire Dales. The Yorkshire Subterranean Society is more commonly known as the YSS. The YSS organises regular Caving and Walking meets to the Yorkshire Dales twice a month and other UK Caving areas through the