Observation 16323: Boletus smithii Thiers

When: 2008-12-06

Collection location: Albion, Mendocino Co., California, USA [Click for map]

Who: Douglas Smith (douglas)

No specimen available

A big year for these. I first id’ed these a few years ago, and I believe they were just ignored before, because since then I’ve seen at least one each year. This year there were about a dozen brought in, and most of them much larger than what had been seen in the past. Also this year a number of these stained blue in the pores and in the flesh when cut. This blue reaction was light, and slow compared to other blue staining species. I hadn’t seen this blue staining in these in the past, usually they don’t stain blue. The blue staining was noted in the Thiers’ monograph, but this was the first time I saw this actually happening.

A few of these were 8-10 inch in diameter, usually they are 3-5 inches in size.

Species Lists


Proposed Names

75% (2)
Recognized by sight

Please login to propose your own names and vote on existing names.

= Observer’s choice
= Current consensus


Add Comment
No one has commented yet.