Perhaps one of the most fetid of fungi is _Thelephora palmata_. Some specimens were on one occasion taken by Mr. Berkeley into his bedroom at Aboyne, when, after an hour or two, he was horrified at finding the scent far worse than that of any dissecting room. He was anxious to save the specimens, but the scent was so powerful that it was quite intolerable till he had wrapped them in twelve thick folds of the strongest brown paper. The scent of _Thelephora fastidiosa_ is bad enough, but, like that of _Coprinus picaceus_, it is probably derived from the imbibition of the ordure on which it is developed. There needs no stronger evidence that the scent must not only be powerful, but unpleasant, when an artist is compelled, before a rough sketch is more than half finished, to throw it away, and seek relief in the open air. A great number of edible Agarics have the peculiar odour of fresh meal, but two species, _Agaricus odorus_ and _Agaricus fragrans_, have a pleasant anise-like odour. In two or three species of tough _Hydnum_, there is a strong persistent odour somewhat like melilot or woodruffe, which does not pass away after the specimen has been dried for years. In some species of _Marasmius_, there is a decidedly strong odour of garlic, and in one species of _Hygrophorus_, such a resemblance to that of the larva of the goat moth, that it bears the name of _Hygrophorus cossus_. Most of the fleshy forms exhale a strong nitrous odour during decay, but the most powerful we remember to have experienced was developed by a very large specimen of _Choiromyces meandriformis_, a gigantic subterranean species of the truffle kind, and this specimen was four inches in diameter when found, and then partially decayed. It was a most peculiar, but strong and unpleasantly pungent nitrous odour, such as we never remember to have met with in any other substance. _Peziza venosa_ is remarkable when fresh for a strong scent like that of aquafortis.