In the early 90’s an educational website, I think associated with NOVA and on the Prodigy service, had a series of possibly tongue-in-cheek articles about the abilities of a hypothetical pet slime mold, so I wanted to find one of these strange creatures. Several years later first saw one, on an old stump in deep shade along Crooked Creek near what is now Southpoint Mall. More recently in late May one year I saw some on shredded wood or bark mulch in front of the Raleigh Convention Center, in a very built-up area of downtown Raleigh. This mulch, and possibly old pine logs, seem to be favored habitats. I usually see them around now, when it is warm but still moist. There was enough rain last summer that I found some later than usual and for the first time in my yard. All of these might have been bright yellow scrambled-egg slimes (Fuligo septica), once called bark flowers and unusual in extreme bioaccumulation of zinc, used in a pigment. The many-headed slime (Physarum polycephalum) is a stereotypical slime mold popular in research. I might have seen light red wolf’s-milk or wood-loving slimes (Lycogala epidendrum) on a pine log at Falls Lake State Recreation Area. I’m not sure if I saw a fungus or chocolate tube slime, also called pipecleaner or deep-brown slime (Stemonitis splendens) and others, on pine logs at Jordan Lake State Recreation Area. There are hundreds of species in North America but there might be around 50 in a given region, many described in the Audubon mushroom guide. Diversity is highest in temperate areas, and slimes can live in the treetops, snow, underwater, and even in deserts. They are no longer consider fungi and don’t seem particularly slimey. Despite their sometimes loud colors, slimes are usually inconspicuous organisms, but still have cultural connections to humans and other ecological connections. A plasmodial slime mold is basically a giant cell, without nerves or muscles, but since the 90’s their mental abilities have been uncovered and they get mentioned in surprising places, from geography to astronomy.
The rest of this article is in the May-June issue of Triangle Gardener magazine, distributed at Durham County libraries, which I think are reopening now, and at other locations, and it is available online at www.trianglegardener.com