Mycological Progress

, Volume 18, Issue 6, pp 833–845 | Cite as

Parakarstenia phyllostachydis, a new genus and species of non-lichenized Odontotremataceae (Ostropales, Ascomycota)

  • Chunlin Yang
  • Hans-Otto Baral
  • Xiulan Xu
  • Yinggao LiuEmail author
Original Article


The new species Parakarstenia phyllostachydis was discovered on stems of Phyllostachys heteroclada in Sichuan Province of China and is placed in a new genus within Odontotremataceae in this paper. A multigene analysis of a combined nuclear ITS and LSU rDNA and mtSSU sequence dataset and comparable morphologies suggests the taxonomic affinity of the new taxon in this family. Maximum likelihood and Bayesian inference phylogenetic analyses provide evidence that the fungus is best placed in a distinct genus within this family. The new genus is compared with similar genera of Ostropales and a comprehensive description and illustration are offered. Parakarstenia is characterized by its distinct suite of features, such as initially immersed, intracortical, later erumpent and seemingly superficial, sessile and usually gregarious apothecia with a flat to slightly convex, greyish white or pale brown disc; a hairless, buff to yellow receptacle; a non-protruding margin, absent periphysoids and crystals, cylindrical to clavate asci with conical apex and a hemiamyloid (type RR) outer wall; and narrowly cylindrical-clavate to fusoid, vermiform, straight to medium curved, initially non-septate, at maturity transversely multiseptate ascospores. An updated phylogram for Ostropales with selected, predominantly non-lichenized members based on multigene analysis is provided.


New genus and species Bambusicolous fungi Karstenia Phylogeny Taxonomy 



Chun-Lin Yang warmly thanks Xue Wang, Ming Liu, Li-Juan Liu, and Ren-Hua Chen for their help of laboratory work.

Funding information

Xiu-Lan Xu received support from the Resources Investigation of Entomopathogenic Fungi in Sichuan Province and its Controlling Benefits to Forest Pests (Grant number: 510100-201700290-2017-00363).


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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Chunlin Yang
    • 1
  • Hans-Otto Baral
    • 2
  • Xiulan Xu
    • 1
    • 3
  • Yinggao Liu
    • 1
    Email author
  1. 1.College of ForestrySichuan Agricultural UniversityChengduChina
  2. 2.TübingenGermany
  3. 3.Forestry Research InstituteChengdu Academy of Agricultural and Forestry SciencesChengduChina

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