Panus roseus (Karun., K.D. Hyde & Zhu L. Yang) N. Vinjusha & T.K.A. Kumar, 2021

Arun Kumar, T. K., 2021, Two new combinations in the genus Panus (Panaceae, Polyporales) based on morphology and molecular phylogeny, Phytotaxa 514 (3), pp. 287-294: 289-291

publication ID 10.11646/phytotaxa.514.3.8

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Panus roseus (Karun., K.D. Hyde & Zhu L. Yang) N. Vinjusha & T.K.A. Kumar

comb. nov.

Panus roseus (Karun., K.D. Hyde & Zhu L. Yang) N. Vinjusha & T.K.A. Kumar   comb. nov.

Basionym:— Lentinus roseus Karunarathna, K.D. Hyde & Zhu L. Yang   , in Karunarathna, Yang, Zhao, Vellinga, Bahkali, Chukeatirote & Hyde, Mycol. Progr. 10 (4): 392 (2011)). MycoBank: 518240, from Thailand.

According to Karunarathna et al. (2011), Panus roseus   is characterized by a relatively small basidiome, with coriaceous, deeply cyathiform, pink-coloured pileus, dimitic hyphal system, with thick-walled unbranched skeletal hyphae, presence of clavate, cheilocystidia and metuloids, and ellipsoid to elongate basidiospores.

For full taxonomic description and comparison with related species, see Karunarathna et al. (2011).

Remarks:— Type material of Panus roseus   was not examined in this study. The new combination is based on morphological characters from the original description of P. roseus   (as “ L. roseus ”, Karunarathna et al. 2011   ), and based on molecular phylogenetic analysis with the available GenBank sequence of the species from China.

Molecular characterization

A BLAST search, using the ITS sequence of the specimen AK61b (described as Lentinus bambusinus   by Kumar & Manimohan 2005), resulted in 93%and 94.5% identity with two undescribed Panus species   from India (GenBank numbers-KP686453, MG279699 View Materials respectively). BLAST result also showed 94% similarity with an accession of Neolentinus kauffmanii (A.H. Sm.) Redhead & Ginns (1985: 357)   (earlier treated in Panus   , as P. kauffmanii (A.H. Sm.) Corner (1981: 64)   (GenBank number-JQ428821), 91% similarity with accessions of Panus strigellus   (GenBank numbers-MW407012, JQ955724 View Materials , JQ955727 View Materials ) and 90% identity with accessions of Panus conchatus   (GenBank numbers-MK192053, MH857778 View Materials , MG231758 View Materials ).

The phylogenetic tree ( Fig. 2 View FIGURE 2 ) shows the placement of “ Lentinus bambusinus   ” with related taxa in the order Polyporales Gäum. In   the tree, “ Lentinus bambusinus   ” resolved as a distinct taxon along with two undescribed species of Panus   , with 96% bootstrap support. In the analysis, the species “ Panus roseus   ” formed a sister clade with Panus conchatus   , with 93% bootstrap support. Both the species, L. bambusinus   and L. roseus   showed no phylogenetic affinities with the members of the genus Lentinus   .














Panus roseus (Karun., K.D. Hyde & Zhu L. Yang) N. Vinjusha & T.K.A. Kumar

Arun Kumar, T. K. 2021

Panus roseus

N. Vinjusha & T. K. A. Kumar 2021

Lentinus roseus Karunarathna, K.D. Hyde & Zhu L. Yang

Karunarathna, K. D. Hyde & Zhu L. Yang 2011