Observation 178379: Boletus patrioticus T.J. Baroni, Bessette & Roody
When: 2014-09-12
(39.7768° -74.5325° )

Notes: That’s a new one for me and I have no idea what it is.
It was growing on a mossy patch in tall grass on a parcel of land between a dirt road a row of young pitch pines; the were a couple of oak saplings nearby.
Too young to drop spores — the pore mouths were closed.
Cap = 3.8 cm (1.5")in diameter; overall height = 5.7 cm
The pore surface didn’t stain any color regardless of what the pix show.
The cap context stained blue above the tubes and red below the pileipellis.
This material has been preserved.

The possibility of this bolete being B. patrioticus, as suggested by Dr. Bessette, is intriguing. The fact that we do find quite a few “southeastern” basideomycetes in the NJ Pine Barrens (e.g., Boletus oliveisporus, Austroboletus subflavidus, Amanita sagittaria) supports the hypothesis that B. patrioticus might be found to the north of its normal northernmost distribution range (NC west to OH). The mixed conifer-hardwood habitat of the Barrens is rather unusual, but young oaks were observed in the vicinity. As far as the specimen itself is concerned, its gestalt appearance is similar to the mushroom identified as B. patrioticus in obs 34091, obs 95107, as well to the corresponding photos in Bessette-Roody-Bessette (B-R-B). The tri-color context pattern in the cap is indicative, too. Lack of bluing on the pore surface of my specimen, however, is not in agreement with the description. Could bluing be a function of the age?

DNA Sequencing Discussion:

This bolete gave very clean ITS and LSU sequences (available upon request).

Individually, both sequences are a >99% match for an uncultured ectomycorrhizal fungus clone (GenBank KC424548) reported in “Annual and Seasonal Dynamics of Ectomycorrhizal Fungi Colonizing White Pine (Pinus strobus) Seedlings Following Catastrophic Windthrow in Northern Georgia, USA” by Cowden,C.C. and Peterson,C.J.

A 989 bp LSU sequence fragment (the entire LSU sequence is 1447 bp long) was also a >99% match for a B. communis voucher from North Carolina (GenBank sequence AY612801). According to Dr. Alan Bessette, B. communis is an old and incorrect name for B. patrioticus (see http://fm1.fieldmuseum.org/nama/?page=view&id=811).

Conclusion: Based on the above evidence, this bolete in all likelihood represent the first reported record of B. patrioticus from NJ. Matching ITS and/or LSU sequences from the B. patrioticus holotype (located at Buffalo Museum of Science) or a trusted voucher are necessary for unambiguous identification.

Proposed Names

28% (1)
Recognized by sight
76% (5)
Eye3 Eyes3
Used references: Suggested by Alan Bessette (personal communication)

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

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

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Molecular Data Discussion Posted
By: I. G. Safonov (IGSafonov)
2015-05-15 17:09:31 PDT (-0700)
Hello, Dave
By: I. G. Safonov (IGSafonov)
2015-01-04 16:39:41 PST (-0800)

Happy New Year! Thank you for posting your comment in support of B. patrioticus.

AuroraS,
By: I. G. Safonov (IGSafonov)
2015-01-04 16:36:20 PST (-0800)

Thank you for pointing out B. harrisonii as a possibility. I’ve never heard of this name before, and your proposal prompted me to investigate the subject and get a complete description of this mushroom on MushroomExpert.com and other hot-of-the-press updates on boletes on that website, like the key to 30+ species of red-capped bluing boletes and a careful tabulated comparison between bicolor, sensibilis and psedosensibilis among others. But I am digressing…

I don’t think it fits the bill here for a variety of reasons, such as a more stocky appearance and lack of bluing on the pores and other external surfaces, for starters. The diminutive size is due to immaturity and dry conditions, and not necessarily attributed to genetics. The campestris-fraternus-rubellus-subfraternus cluster, to which B. harrisonii appears to belong, is a readily recognized group consisting of gregarious, oak-associated, small-sized and graceful red-capped and readily bluing boletes, some with a “xerocomoid” hymenophore. I am quite familiar with the group, but I have never collected any one of those in the Barrens, which appears to be the wrong habitat for this group probably because of the soil. To my bolete-trained eye, this specimen looked rather unique from the first moment I saw it. The only species that it reminds me a bit of is Boletus miniato-olivaceus I collected earlier that year under hemlock (obs 168189).

Despite the questionable distribution range and lack of surface bluing, B. patrioticus is still a viable possibility. If there exists a vouchered specimen that has been sequenced (nrITS or nrLSU), I would be willing to submit my sample for analysis. At the same time, I don’t exclude the possibility of this being an undescribed taxon given my extensive experience of collecting and documenting boletes of the NJ Pine Barrens. I will be on a look out for a larger and age-diverse collection of this mushroom when the time comes…

Reading the BRB account…
By: Dave W (Dave W)
2015-01-04 15:48:04 PST (-0800)

of B. patrioticus, the description of the context within the cap stands out, “pale yellowish, pinkish red to purplish under the pileipellis or extending throughout the pileus, slowly staining blue below the reddish area when exposed.” This appears to be an exact match for the mushroom seen here. Moreover, the name “patrioticus” is derived from this red, blue, and whitish/yellowish context color contrast.

I have never forayed in the Pine Barrens. But from what I’ve seen posted here on MO, it would appear to be ill advised to rule out IDing a PB collection because the range does not extend as far north as this quite unique area.

I have found this one before, good luck trying to nail down an ID.
By: AuroraS
2015-01-04 12:51:04 PST (-0800)

It’s probably more likely that it’s not B. patrioticus if it’s both missing some of the B. patrioticus features and outside of its normal range. I have found this one before—cute and small, velvety cap, on the edge of a mixed hardwood forest in the grass, Mid-Atlantic US, resembling B. campestris et al., sort of but not really bruising blue, and won’t put out a spore print to save its life. Nobody could tell me what the damn thing was, good luck.

Created: 2014-09-14 21:54:31 PDT (-0700)
Last modified: 2015-09-05 11:00:27 PDT (-0700)
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