If anyone reading this blog considers fungi too boring to be of interest, they may be about to experience a change of heart. A group of fungi known as “stinkhorns” generate a lot of interest, mostly because of their appearance and their odor. These fungi vary in color, shape and size, but they all share two characteristics. All stinkhorns begin fruiting by sprouting an “egg” from which they erupt, often as quickly as overnight, and a portion of their fruiting body is covered with slime (gleba) which contains spores.
Many species of Stinkhorns have a phallic form, including Ravel’s Stinkhorn (Phallus ravenelii). Brown, foul-smelling, spore-laden slime is located at the tip of this fungus. Attracted by the odor, insects (mostly flies) land and feed on the slime. With bellies full and feet covered with spores, the flies depart, serving as efficient spore dispersers.
There is no way you can walk by the fruiting body of Pseudocolus fusiformis, a member of the Stinkhorn family Phallaceae, without noticing it. Its shape is markedly different from most fungi, in that it has three or four separate orange “arms” which are fused at the top. If your eyes don’t detect it, your nose most certainly will. Also known as “Stinky Squid,” this fungus emits a strong, putrid odor which comes from the dark green, spore-bearing slimy material (gleba) that is found on the inner surfaces of the arms. This smell attracts insects, primarily flies, which inadvertently disperse spores after visiting the fungus. Look for round egg-like whitish structures at the base of Pseudocolus fusimormis – these are young fruiting bodies that have yet to develop arms. (Thanks to Shiela Swett for photo op.)