(en) Greville, R.K. (1827). Scottish cryptogamic flora, or coloured figures and descriptions of cryptogamic plants, belonging chiefly to the order Fungi; and intended to serve as a continuation of English Botany. Vol. V (fasc. 55-60). pp. pls 271-300 (with text). Edinburgh & London: MacLachlan & Stewart; Baldwin, Craddock & Joy, page 294 (lire en ligne [PDF]).
