Austroboletus 'reticulate/lacunose stem'

The fruitbody is a bolete with a cap atop a central stem. Depending on species, the cap varies from just a few centimetres to over 10 in diameter and heights shows a similar range. The caps and stems come in various colours. The pores on the underside of the cap whitish initially but become pinkish and may darken further to pinkish/reddish brown with age.  

 

The stem bears ridges that interconnect to create the appearance of a net with a fairly coarse mesh. The ridges may be fairly low (and create a slight reticulation over the stem) or quite deep (and then give the impression that the stem has numerous depressions). In the latter case the stem is technically described as lacunose, a word derived from the Latin lacuna, meaning pit or hollow.

 

These boletes appear on soil in a variety of habitats.

 

Look-alikes

White to pinkish pores and a coarsely reticulate to lacunose stem tells you that your bolete is a species of Austroboletus. A bolete with lacunose stem and darker pores is still very likely to be an Austroboletus.  

 

Various other boletes have stems with a very low and fine-meshed reticulation (each cell in the mesh being only a millimetre or so in width).   

 

 

Note that some some species of Austroboletus are reported to lack a pronounced reticulate or lacunose stem and identifying those to genus would require a look under the microscope.  

 

Austroboletus 'reticulate/lacunose stem' is listed in the following regions:

Canberra & Southern Tablelands

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