FungiDiaporthalesMelanconidaceaeJaklitschWalter M.VoglmayrHermannThe genus Melanconis (Diaporthales)MycoKeys0232020636911710.3897/mycokeys.63.490545AEFCE1D-17E7-5177-875D-5C05A90BEE9D Melanconis betulae C.M. Tian & X.L. Fan, in Fan, Du, Liang & Tian, Mycol. Progr. 15(4/40): 4 (2016).Note.

According to Fan et al. (2016), who described this species as an asexual morph from Gansu Province in China on Betula albosinensis, Melanconis betulae can be distinguished from M. stilbostoma by the smaller average length of its alpha conidia (10 vs. 12 μm). Phylogenetically, M. betulae is remote from the other betulicolous Melanconis species (Fig. 1).

10.3897/mycokeys.63.49054.figure14483A5B4-3191-5988-AAFB-68475BE3B61D

Phylogram of the best ML tree (lnL = −18240.558) revealed by RAxML from an analysis of the ITS-LSU-ms204-rpb2-tef1-tub2 matrix of Melanconis, with 5 species of Juglanconis (Juglanconidaceae) selected as outgroup. ML and MP bootstrap support above 50% are given at the first and second position, respectively, above or below the branches. Strain numbers are given following the taxon names; strains formatted in bold were sequenced in the current study. Melanconis taxa occurring on Alnus are marked blue, those on Betula in green. The broken branches to the outgroup were scaled to 10%.

https://binary.pensoft.net/fig/384811FanXLDuZLiangYTianCM (2016) Melanconis (Melanconidaceae) associated with Betula spp. in China. Mycological Progress 15: 40. https://doi.org/10.1007/s11557-016-1163-2