L. biornatus is scarcely recorded and little known. Berkeley and Broome only say that the specimens studied were found on the ground in Peradeniya, Sri Lanka (then known as Ceylon) in 1868. The majority of the observations documented in their paper (which provide a location) were made there so it is possible that they were in or around the vicinity of the Royal Botanical Gardens, Peradeniya, which were founded in 1843. In their introduction to 'On the Fungi of Ceylon' it is remarked how closely the agarics documented resembled those of species found in Britain.
