I’ve just been made aware that the book: –
The genus Tricholoma (Christensen, M., & Heilmann-Clausen, J.; Fungi of Northern Europe; vol 4; Svampetryk; 2013):

[attachment=0]fungi-of-northern-europe-volume-4-the-genus-tricholoma.jpg[/attachment]
has been made available as a free to download PDF: –
http://www.mycokey.com/Downloads/TheGenusTricholoma.pdf
The PDF is a complete, high resolution copy of the entire book, and is well worth downloading for anyone who doesn’t have the actual book.
(Printed copies of the original book are still available from various booksellers at a cost of approximately £40.00).
One of the “Fungi of Northern Europe” volumes, the book’s coverage includes the entirety of the British isles, with two full pages for each species.
Providing full habitat, distribution, macro and micro characteristics (with diagrams), and superb photographs.
In my opinion, one of the best books available on the genus.
Regards,
Mike.