It’s always good to venture further afield when hunting for new mushrooms, especially when you get a break or are on a holiday. I had the chance to escape way down south to Poole in Dorset at a holiday park set within mixed woodland which was brilliantly rich in fungi…
It was here I discovered Slippery Jack (Suillus luteus) and I don’t see many of them at all around the midlands. It is such gooey splendour to behold when you first find one. I’m guessing some people might dislike the slippery surface, but I just loved it, especially when it’s a key identification feature too.
Found exclusively in conifer woodland, especially with Scots pine you will be pretty sure what you have stumbled across. It is a medium to large mushroom and closely related to boletes, featuring pores instead of gills, but feature glutinous caps (to some degree or another) many of which have rings on the stem and grow along side conifers.
There were only a few I found with (I think) Larch Boletes which are very similar but lighter in colour, growing with larch – naturally. I didn’t check all trees around which I’m kicking myself about! But that’s a post for another time.
The chestnut/sepia brown sticky cap is unmistakeable. Slide your finger across, hold it for a second, then slowly pull your finger away. Nice brown glutin goo will want to come along with you. Great stuff. The small round yellow – straw yellow pores can become flushed a deeper brown colour.
And, as mentioned before, with most Suillus species, there is a ring on the stem. Depending on what age you find your Slippery Jack it can differ somewhat. Initially it is large and white/cream in colour. It will turn a deeper reddish-brown over time and maybe even fall off leaving only a memory of it’s presence! But key features to note are that ‘above’ the ring the stem is the same/similar colour to the pores underneath the cap, but below the ring is white, at least underneath sepia brown granulations and darker markings – so let’s just say darker!
There is no real distinctive smell or anything like that to make you want to pick and eat it, but it is edible and definitely worth a try. After peeling away the glooping covering they must be cooked and may shrink a little as they are very ‘watery’. OK, so you don’t have much left, but try it sliced in some omelettes or add as a pizza topping. And thanks to a recent comment (see below) it’s most common use is to dry slices of the cap (after peeling and cooking I presume) and then process into powder which is good to add to soups, casseroles and such. All good stuff.
QUICK ID TABLE: SLIPPERY JACK Suillus luteus
5 – 12cm in diametre, Chestnut or sepia colour. More rusty colour when older. Brown slimy & sticky gluten on surface. Shiny when dry. Flesh is white.
5-10cm x 2-3cm. Ring on stem. Pale straw colour above ring at apex. White but discoloured darker brown with age. Ring initially large white/cream darkening to deep brown/sepia.
PORES / SPORE PRINT
Small and round. Lemon yellow / straw colour.
HABITAT / SEASON
With conifers, usually Scotts pine in autumn. Common.
Edible but watery. Must peel slime off and cook before eating. Or dry and process into a powder for soups and casseroles.
The Genus SUILLUS (related to BOLETUS – the Boletes): Characteristics to look out for:
• Like Boletes, Suillus has pores on the underside instead of gills.