Observation 96379: Picoa carthusiana Tul. & C. Tul.

When: 2012-06-04

Collection location: Federal Way, Washington, USA [Click for map]

Who: Tim Sage (T. Sage)

No specimen available

ID’d by PSMS and PNW Key Council member Danny Miller. Brought into the PSMS ID clinic.

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She mentioned….
By: Tim Sage (T. Sage)
2012-06-05 13:48:56 PDT (-0700)

Henmlock and rhododendron, as well as Doug fir. She said there were more tree species too.

MUST have Douglas-fir
By: Daniel B. Wheeler (Tuberale)
2012-06-05 12:08:50 PDT (-0700)

somewhere in the yard. Leucangium carthusianum is species specific (found only) with Douglas-fir. Kalapuya brunnea probably with Douglas-fir too. It would be very interesting if any other trees were nearby, though.

A woman said her dog dug it up in her yard….
By: Tim Sage (T. Sage)
2012-06-05 11:03:01 PDT (-0700)

In Federal Way. She was not a member, but plans on joining. I will try to get her contact information.

Thanks for the input!

VERY late in the season.
By: Daniel B. Wheeler (Tuberale)
2012-06-05 09:26:45 PDT (-0700)

Usually L. carthusianum would stop fruiting by April. Leucangium carthusianum should also have a coal-black warted peridium and gleba this late in the season. I think Kalapuya brunnea has to be considered as well. But this is way beyond the current-known range of Kalapuya brunnea (formerly Leucangium brunneum); and has blackish tints to some of the peridium. K. brunnea is nearly uniform tan to brown: at least the few specimens I have seen personally. And it typically fruits much earlier in the year: from December to March, I believe.

I still remember Zelda Carter bringing in fresh Leucangium brunneum to the Dec. NATS potluck one year. I asked her to have Dr. Trappe look at it first. Jim commented a voucher collection should first be made of a species novum when first seen, but agreed Leucangium was a good initial fit. And many people had samples of it that first night.

Try to find out where this was collected, Tim. An important collection, regardless of what it is. I’ve heard some commercial collectors claim Leucangium carthusianum has been found every month of the year. I cannot verify that claim personally: only that one collector insisted he could find it any month.

Created: 2012-06-04 19:52:37 PDT (-0700)
Last modified: 2014-11-10 18:56:19 PST (-0800)
Viewed: 90 times, last viewed: 2018-03-02 11:27:35 PST (-0800)
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