9-10cm in diameter. No distinctive smell.
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Some fungi are very poisonous so a mistaken ID could have serious consequences.
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Looks like Lactarius deterrimus however from needles on ground it looks like growing under pine which makes Lactarius deliciosus more likely. were there any spruce trees around?
It states in the genus lactarius book that they both grow under pine and spruce.
Thats interesting, glad you are getting lots of these books, they can be very interesting. In my experience the distinction between the two lactarius based on tree species is pretty good, at least if you can tell between the two lactaius based on other characters such as blobs on stem. We see loads of both species here and its always L. deterrimus under spruce and L. deliciosus under pine. where the spruce and pine plantations come up to each other there is some slight overlap in lactarius species but only slight, once you get a few metres in to either tree species then the lactarius has completely changed to the 'correct' type.
I have never seen such large numbers of these species in other places but the general distinction between the two has applied in my experience but of course in other places that I have not visited the situation may be different. Possibly something that ispot may be able to help with if everyone notes which species of tree is growing with these orange lactarius.
The genus Lactarius by Heilman-Clausen et al., at least the 1998 edition, dunno if it has been updated, gives spruce for L. deterrimus and pine for L. deliciosus. I see no statement that either can grow under both spruce and pine. Over many years I personally have never found exceptions to the spruce/pine separation.
In the photo, the fungi are surrounded by pine litter, but the colouring and stem characters do not seem to match L. deliciosus.
Maybe it is L. deterrimus, with spruce roots nearby, but an alternative possibility is L. semisanguifluus, which is undoubtedly under-recorded in Britain. However, as knowledge of colour changes in flesh and milk on cutting fresh specimens is essential in this critical group, I don't think any identification should be attempted from photographs of elderly specimens - so my own agreement is just to genus.
That is the book I have and your right there is no mention of this I have looked at the wrong book.It does say in Roger Phillips book Mushrooms and other fungi of great Britain and Europe that L.deliciosus grow's under pine and spruce and say's the same for L.deterrimus.I am going to record tree types much more carefully from now on as I get lots of both were I live.The is also a problem as you said with the age of a fruiting body as they are much easer to identify when young and fresh.
I will in future stick to my Genus Lactarius book for identification
The taking of notes is very important but I cannot see this happening overnight as I always mention this but most people just take a photo.I have lots of both of these and as you say some can be very close to both pine and spruce.I am not questioning your knowledge on the subject as you have a lot more experience than me I am just learning.
I cannot be of any help. The trees round about are a mix of spruce, pine and larch as well as the odd deciduous type. It all seems to have been randomly planted when a former quarry was being rehabilitated.
There is a lot of mixed planting like this it is the same were I live and that is hard when you find one of these two fungi as it is a bit of a guess at which tree it's closest to.The photo's you have taken are good.
Colour if milk and colour change of flesh after 10mins and an hour should seperate the two.
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Lat/Lng: 54.728, -1.6832
OS grid ref: NZ204370
In a small nature reserve formed from former quarry ponds.