The Wood Wide Web is an intriguing concept. Mushrooms are the fruiting body of fungi which can be extensive. The world's largest may be in Oregon covering 2,384 acres which would make it the largest organism on earth.

 The "web" is the underground network of roots, fungi and bacteria in symbiotic relationship. The mycorhyzal filaments transport water and nutrients to plants and in exchange receive carbon-rich sugars. These networks connect plants and allow them to share resources. Indeed this web may even be said to allow plants to communicate with each other.