Henry, Imshaug (1957). "The lichen genus Pyxine in North and Middle America". Transactions of the American Microscopical Society. 76 (3): 246–269. doi:10.2307/3223889. JSTOR3223889.
Laundon, Jack Rodney (2004). "(1634) Proposal to reject Lichen daedaleus in order to safeguard the name Pyxine sorediata". Taxon. 53 (3): 832–832. doi:10.2307/4135461. JSTOR4135461.
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Malíček, Jiří; Palice, Zdeněk; Acton, Andy; Berger, Franz; Bouda, František; Sanderson, Neil; Vondrák, Jan (2018). "Uholka Primeval Forest in the Ukrainian Carpathians – a keynote area for diversity of forest lichens in Europe". Herzogia. 31 (1): 140–171. doi:10.13158/099.031.0110.
jstor.org
Henry, Imshaug (1957). "The lichen genus Pyxine in North and Middle America". Transactions of the American Microscopical Society. 76 (3): 246–269. doi:10.2307/3223889. JSTOR3223889.
Laundon, Jack Rodney (2004). "(1634) Proposal to reject Lichen daedaleus in order to safeguard the name Pyxine sorediata". Taxon. 53 (3): 832–832. doi:10.2307/4135461. JSTOR4135461.