Boston Mycological Club
Birch polypore
Practically only found on dead (or soon to be dead) birch trees. These are annuals, although some claim to have found these that have revived from the previous year. At first, they have a covering over the pore surface. When the pore surface is freshly exposed, it is white and finely pored, but as it ages, the pores darken a bit, dry out and become separated and tooth-like. There is usually a "lip" around the edge of the pore surface, too.
Bessette - Mushrooms of Northeastern North
America; page 377
Lincoff - Audubon Field Guide to North American
Mushrooms; page 477
Barron - Mushrooms of Northeast North America;
page 149
Kibby - Mushrooms and Other Fungi; page 168
Phillips - Mushrooms of North America; page
269
Arora - Mushrooms Demystified; page 584
This is a picture of an unusually large collection. The covering over the pore surface is still intact, so the pores cannot be seen. It is hard to tell the scale from the photo, but this specimen was very solid and heavy and was probably 8 inches across. The bottom surface is very white - in the bottom photo, it's picking up the colors of light splashing off the red-orange carpet it's resting on.
|
|
| Brought to BMC meeting, 2001-09-10 |