Fungus (see below), which are produced by very closely related "Aspergilli". Quorn, a meat substitute, is made from "Fusarium venenatum". Edible mushrooms include commercially raised and wild-harvested fungi. "Agaricus bisporus", sold as button mushrooms when small or Portobello mushrooms when larger, is the most widely cultivated species in the West, used in salads, soups, and many other dishes. Many Asian fungi are commercially grown and have increased in popularity in the West. They are often available fresh in grocery stores and markets, including straw mushrooms ("Volvariella volvacea"), oyster mushrooms ("Pleurotus ostreatus"), shiitakes ("Lentinula edodes"), and enokitake ("Flammulina" spp.). Many other mushroom
Oyster card points of their journey to calculate the fare due. Users must touch the Oyster card only once at the point of boarding: as London buses have a flat fare of £1.50 (which allows for unlimited bus journeys within an hour from the point of touching in), there is no need to calculate an end point of the journey. In July 2016, cash became the deprecated form of payment for travel on London Buses, with TfL heavily promoting the use of a contactless card or Oyster card. All major contactless cards are accepted which carry the 'contactless symbol', however tourists are