We attended a meeting of the Seattle Mycological Society this past summer and our novice ears perked up at the discussions around names. You would hear speakers attempt to use the scientific name and set off debate, but use the common name to achieve understanding, and then would proceed to use some descriptive term in the event that it was sub-species or variation. So, while perhaps scientifically frustrating in its lack of rigor, using those common names plus descriptors certainly fixed it for everyone apart from the practicing professional mycologists.