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.
Of colour, fungi exhibit an almost endless variety, from white, through ochraceous, to all tints of brown until nearly black, or through sulphury yellow to reds of all shades, deepening into crimson, or passing by vinous tints into purplish black. These are the predominating gradations, but there are occasional blues and mineral greens, passing into olive, but no pure or chlorophyllous green. The nearest approach to the latter is found in the hymenium of some Boleti. Some of the Agarics exhibit bright colours, but the larger number of bright-coloured species occur in the genus Peziza. Nothing can be more elegant than the orange cups of Peziza aurantia, the glowing crimson of Peziza coccinea, the bright scarlet of Peziza rutilans, the snowy whiteness of Peziza nivea, the delicate yellow of Peziza theleboloides, or the velvety brown of Peziza repanda. Amongst Agarics, the most noble Agaricus muscarius, with its warty crimson pileus, is scarcely eclipsed by the continental orange Agaricus cæsarius. The amethystine variety of Agaricus laccatus is so common and yet so attractive; whilst some forms and species Russula are gems of brilliant colouring. The golden tufts of more than one species of Clavaria are exceedingly attractive, and the delicate pink of immature Lycogala epidendrum is sure to command admiration. The minute forms which require the microscope, as much to exhibit their colour as their structure, are not wanting in rich and delicate tints, so that the colour-student would find much to charm him, and good practice for his pencil in these much despised examples of low life.
Amongst phenomena might be cursorily mentioned the peculiar sarcodioid mycelium of Myxogastres, the development of amœboid forms from their spores, and the extraordinary rapidity of growth, as the well-known instance of the Reticularia which Schweinitz observed running over iron a few hours after it had been red hot. Mr. Berkeley has observed that the creamy mycelium of Lycogala will not revive after it has become dry for a few hours, though so active before.
M. J. Berkeley, “Introduction to Cryptogamic Botany,” p. 265.
Tulasne, “Sur la Phosphorescence des Champignons,” in “Ann. des Sci. Nat.” (1848), vol. ix, p. 338.
In “Hooker’s Journal of Botany” (1840), vol. ii. p. 426.