The genus Theissenia: T. pyrenocrata, T. cinerea sp. nov., and T. eurima sp. nov

@article{Ju2003TheGT,
  title={The genus Theissenia: T. pyrenocrata, T. cinerea sp. nov., and T. eurima sp. nov},
  author={Yu-Ming Ju and Jack D. Rogers and Huei-Mei Hsieh},
  journal={Mycologia},
  year={2003},
  volume={95},
  pages={109 - 116}
}
The diagnosis of Theissenia is emended to include taxa that lack a definite central perithecial columella and taxa that feature ascospores with a germ slit. Theissenia cinerea is described as a new species that lacks a perithecial columella; T. eurima is described as a new species with ascospores having a germ slit. The type species, T. pyrenocrata, is redescribed and compared with the new species. The taxonomic position of Theissenia is discussed. 

Topics from this paper

Theissenia rogersii sp. nov. and phylogenetic position of Theissenia.
TLDR
Phylogenetic analyses based on DNA sequences of beta-tubulin and alpha-actin genes placed Theissenia in the subfamily Hypoxyloideae among the genera that are characterized by having bipartite stromata (i.e. with theStromata differentiated into an outer dehiscing layer and an inner perithecium-bearing layer).
Obolarina persica sp. nov., associated with dying Quercus in Iran
TLDR
A new species is described from Iran widely associated with dying Quercus brantii, on which it produces charcoal-like stromata and differs from the other described species, Ob .
Mycosphere Essays 13 – Do xylariaceous macromycetes make up most of the Xylariomycetidae?
TLDR
This essay focuses on the micro-xylariaceous genera (with inconspicuous ascomata and asexual morphs) in the Xylariomycetidae, with special emphasis onXylariaceae, and reviews their taxonomic significance and current systematic relationship.
Theissenia reconsidered, including molecular phylogeny of the type species T. pyrenocrata and a new genus Durotheca (Xylariaceae, Ascomycota)
The genus Durotheca is introduced with D. depressa sp. nov., as type. Hypoxylon comedens is transferred to Durotheca, based on its morphology with further evidence from molecular phylogenetic
Contributions to species of Xylariales in China-1. Durotheca species
TLDR
Both morphological and molecular evidence confirmed that two Durotheca-like taxa collected from Guizhou Province, China are new species, Duro theca crateriformis and D Kurotheca guizhouensis, while DuroTheca eurima (≡ Theissenia Eurima) is a new record for China.
The genus Biscogniauxia (Xylariaceae) in Guadeloupe and Martinique (French West Indies)
This survey deals with the Biscogniauxia taxa collected in the French West Indies in the course of an ongoing inventorial work on the mycobiota of these islands initiated in 2003. Based on the
Resurrection and emendation of the Hypoxylaceae, recognised from a multigene phylogeny of the Xylariales
TLDR
A comprehensive phylogenetic analysis revealed a clear-cut segregation of the Xylariaceae into several major clades, which was well in accordance with previously established morphological and chemotaxonomic concepts.
Molecular phylogeny of Hypoxylon and closely related genera.
Phylogenetic relationships were inferred among several xylariaceous genera with Nodulisporium or nodulisporium-like anamorphs based on the analyses of beta-tubulin and alpha-actin sequences. One
Towards a natural classification and backbone tree for Graphostromataceae, Hypoxylaceae, Lopadostomataceae and Xylariaceae
TLDR
This study revised the families Graphostromataceae, Hypoxylaceae, Lopadostomataceae and Xylariaceae in Xylariales, based on DNA sequence data derived from living cultures of fresh isolates, data from GenBank and morphological observation of type and worldwide herbarium specimens.

References

SHOWING 1-10 OF 17 REFERENCES
A summary of the Hypoxylon serpens complex
L'Ustulina pyrenocrata Theissen, type du genre nouveau Theissenia
  • Bull Soc Mycol France
  • 1914
Outline of Ascomycota
JUMILLERA AND WALLEYA, NEW GENERA SEGREGATED FROM BSCOGNIAUXIA
Jumillera and Whalleya, new genera segregated from Biscogniauxia
A Revision of the Genus Hypoxylon
Index ascomycetum 1
  • Xylariaceae. Syst Ascomycetum
  • 1994
...
1
2
...