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Li, X.-L. & Y.-J. Yao. Revision of the taxonomic position of the Phoenix Mushroom. Mycotaxon 91: 61-73. 2005.

ABSTRACT: The Phoenix Mushroom, previously assigned to Pleurotus sajor-caju (=Lentinus sajor-caju), is an important edible mushroom widely cultivated with a great commercial value, but confusion on its taxonomic position and scientific name have occurred since it was first isolated for cultivation. In the present study, both morphological and molecular data were gathered from strains commonly cultivated in China and from various collections of the same fungus. The absence of the annulus on the stipe and of the hyphal pegs on the hymenophoral trama, coupled with the larger basidiospores (7.0 - 10.5 x 3.0 - 4.5µm), distinguish the Phoenix Mushroom from L. sajor-caju. The smaller (6.0 - 10.5 cm) and light coloured pileus with excentric to lateral stipe and faster fruiting rates of the Phoenix Mushroom showed a close affinity with P. pulmonarius. Strains of the Phoenix Mushroom share a very similar or identical ITS sequence with other collections from the field, which is different from those of P. ostreatus, a morphologically close related species. It is concluded here that the strains named Phoenix Mushroom are P. pulmonarius, based on both morphology and molecular studies.

KEYWORDS: Basidiomycetes, oyster mushroom, Pleurotaceae

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