09/10/2026
Fruiting this week at the Nature Sanctuary!
1. The brown birch-bolete (Leccinum scabrum) occurs everywhere birch trees grow. The distinctive specks on the stem are called scabers, and are a feature of the genus.
2. The saffron milk cap (Lactarius sp.) is one of the many North American mushrooms whose taxonomy is still being sorted out. Originally believed to be Lactarius deliciosus, a European species, it's now known that their North American lookalikes are genetically distinct and represent a species complex - multiple species that look virtually indistinguishable to the naked eye. Nonetheless, like the European taxon, these milk caps stain green/blue when the flesh is damaged or aged, associate with pine trees, and exude an orange latex when the gills are scratched.
3. This gilled polypore (Trametes betulina) is erupting from a beaver-chewed stump near the pond. From above, it looks like its close relative turkey tail, but turn it over and you'll discover gills rather than pores.
4. Lobster mushrooms (Hypomyces lactifluorum) are one of the coolest fungal finds this time of year! They are actually the chimerical result of fungal parasitization. Hypomyces lactifluorum attacks the host mushroom, usually a Russula but sometimes Lactarius, and renders the distinct features (cap, gills, stem) of the host mushroom unrecognizable. This one had a mystery caterpillar hanging out inside.
5. This Agaricus sp. mushroom was one of many scattered throughout the woods this week. Two of their distinctive features include the skirt visible here from the side and pink gills.
6. This is the first time we've seen false chanterelles (Hygrophoropsis aurantiaca) here, growing under a hemlock next to our main trail. Note the yellow interior flesh, closely crowded, decurrent true gills, and inrolled cap margin, all features that distinguish them from true (edible) chanterelles.
Join us for a mushroom walk next Thursday to admire and learn about some of the fungi growing at the Sanctuary right now. See pinned post for details!