Name: Butyriboletus persolidus D. Arora & J.L. Frank
Most Confident Observations:
Version: 5
Previous Version 

First person to use this name on MO: Christian
Editors: Alan Rockefeller, Jason Hollinger, I. G. Safonov, Joseph D. Cohen


Rank: Species

Status: Accepted

Name: Butyriboletus persolidus

[#803208] Index Fungorum

[#803208] MycoBank

GSD Species Synonymy

Author: D. Arora & J.L. Frank

Citation: Mycologia 106 (3): 471 (2014)

Misspellings: Butryiboletus persolidus


Domain: Eukarya

Kingdom: Fungi

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Boletales

Family: Boletaceae

Genus: Butyriboletus

Notes on Taxonomy: [Edit] Descriptions: [Create]
There are no descriptions for this name yet.


Add Comment
without the paper in hand…
By: Debbie Viess (amanitarita)
2014-06-05 19:07:03 CDT (-0400)

I couldn’t say. Obviously, Christian just got a copy. I am still working on getting one here. I am also interested in seeing the more extensive sp. descriptions.

I have met Frank and spent time with him in the field (Breitenbush), but he was keeping this info pretty close to his chest until publication.

Even as recently as a few months ago, he wouldn’t divulge a name for one of the cryptic red-capped species, altho he did tell me that it was named in his upcoming paper!

If persolidus is just a synonym for appendiculatus, then no problem. that certainly wasn’t apparent in the abstract, though.

I don’t do SOMA camp.

Read the paper, confirmed
By: Christian (Christian Schwarz)
2014-06-05 18:35:54 CDT (-0400)

B. persolidus = B. appendiculatus sensu Thiers

The red capped cryptic taxa are distinguished by:

B. querciregius: Growth almost exclusively with true oak (poss. tanoak) , cap pink to rosy or with yellow areas, in fall along coast; spores up to 15 microns, Q value approximately 3.


Cap deep purplish pink or deep rose when young, growth with conifers or tanoak/madrone, spores up to 17 microns, Q value up to 3.5:
B. autumniregius (fruiting in fall in mountains as well as low elevation)
B. primiregius (fruiting in spring in mountains)

B. abieticola grows with true fir at elevation (rare and local along north CA coast) and has the distinctive pale-patchy cap.

You can be fairly confident with this particular name
By: Ron Pastorino (Ronpast)
2014-06-05 17:23:50 CDT (-0400)

because Jonathan Frank gave a presentation at the last SOMA Camp in which he mentioned the upcoming name changes. While he didn’t give specific names, he did note that our local oak loving fall Butter Bolete had a characteristic of being a “very solid” species.
That and the fact that Noah, Alan and Christian know Jonathan fairly well…sort of like insider trading.

is it?
By: Debbie Viess (amanitarita)
2014-06-05 13:52:28 CDT (-0400)

because I haven’t read the full paper yet, and the abstract only sez this:


“The butter boletes (Boletus s.l. sect. Appendiculati) are an economically important group of ectomycorrhizal fungi whose basidiocarps have a yellow tube layer that often bruises blue, yellow reticulate stipe, mild flavor and firm yellow-tinged flesh that may or may not turn blue when exposed. Morphological characters and molecular data (ITS and LSU) place this group in a separate phylogenetic clade from Boletus sensu stricto. Here we establish a new genus, Butyriboletus, to accommodate 14 species of butter boletes that range from Asia to Europe, north Africa and North America. We recombine eight previously described butter bolete species and we describe six new species: four from western USA (Bu. persolidus, Bu. primiregius, Bu. autumnigius, Bu. querciregius) and two from Yunnan, China (Bu. yicibus, Bu. sanicibus).”

Because it’s not a NEW taxon
By: Christian (Christian Schwarz)
2014-06-05 13:33:11 CDT (-0400)

It’s a new name for a familiar taxon; if you were able to use Boletus appendiculatus sensu Thiers accurately, you can use this name. It’s one of those species that has been around for awhile, just needed a new handle. You have pointed out many instances before where the mushrooms don’t change, just the names.

However! That’s not always the case, as in the red-capped butters, where there WERE cryptic species awaiting new names. So I don’t assume I can use those well yet, except for my understanding of the spring mountain species. The others are a fall mountain species and an oak species, but I won’t use those until I’ve read the full paper.

Yes, like I said, it’s still MOSTLY inaccessible. You can only read it online if you have a subscription…

not so …
By: Debbie Viess (amanitarita)
2014-06-05 13:26:53 CDT (-0400)

IF you have a Mycologia subscription, you can see the entire paper, right now.

IF you haven’t actually READ the description yet, how can you use one of these names?

Cart B4 the horse, IMO.

It’s still mostly inaccessible
By: Christian (Christian Schwarz)
2014-06-05 12:22:32 CDT (-0400)

It is only the name for now, since it is the preliminary online version.
Since you have found the brown butter bolete in our area, you can go ahead and write a draft description!

please add the description of this new species!
By: Debbie Viess (amanitarita)
2014-06-05 12:12:32 CDT (-0400)

not accessible to all at this point.

Number of users interested in this name: 0