The odors of fungi are very varied. Clathrus and Phallus are offensive and attract swarms of blow-flies; Lactarius and Hydnum, on the other hand, are sweetly scented like the flowers of Melilotus. Among the odors of fungi enumerated by Dr. Plowright are those of aniseed, mint, peppermint, garlic, horse-radish, cucumber, ripe apricots, rotting pears, rancid herring, Russia leather, gas-tar, prussic acid, nitric acid, and cacodyl. Like the hemlock, Agaricus incanus has the smell of mice, two species of Lactarius have the odor of the common house-bug, while Hygrophorus cossus smells like the larvæ of the goat-moth. Fifteen or sixteen species of agaric resemble oatmeal both in taste and smell, Hydnum repandum has the flavor of oysters, recalling the oyster plant among the Boraginaceæ, whose leaves have a similar taste. Several are possessed of a nut-like flavor. The common stinkhorn, Phallus impudicus, is the best known representative of a large family of fungi, the members of which are found in various parts of the world. The Phalloidi include Phallus, Lysurus, Simblum, Clathrus, Aseröe, and other genera, all characterized by offensive odors and conspicuous colors. These fungi have been carefully studied by Mr. T. Wemys Fulton, whose paper on the _Dispersion of Spores in Fungi_ in the _Annals of Botany_ for 1899 contains many interesting and important observations bearing on mimicry. The rapid elongation of the stinkhorn is very remarkable; the fungus has been observed to attain a height of several inches in half an hour, furnishing an apt illustration of the proverb that ill weeds grow apace. It not only emits an intolerable charnel-house stench, but its ghastly pallid hue seen against the background of its usual surroundings is peculiarly suggestive of the dead carcass of some animal. Its surface at first exudes a sweetish slime containing sugar, but the hymeneum or spore-bearing portion is deliquescent and the entire mass speedily undergoes a series of changes, the white becoming brown, then black, the solid mass being ultimately resolved into a dark fetid fluid in which the spores are suspended. These mimetic changes, which so closely approximate to those of decomposition, attract carrion flies in prodigious numbers. Blow-flies even deposit their eggs on the fungus, and the maggots seem to develop as though nourished by its substance. On examination Mr. Fulton found the spores adhering in thousands to the feet and proboscides of the insects. Their excrement he found to consist almost entirely of spores, and the latter were found by experiment to be still capable of germination. There is therefore no doubt in this case that flies are employed as agents in the dispersion of the fungus. This statement also applies to various Coprini and others with a deliquescent hymeneum.