Name: Truncospora Pilát ex Pilát
Most Confident Observations:
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Copyright © 2017 Jacob Kalichman (Pulk)
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Copyright © 2018 Hans W. Dahners (Atlides)
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Copyright © 2015 Liz Popich (Lizzie)
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Copyright © 2014 Danny Newman (myxomop)
Version: 18
Previous Version 


First person to use this name on MO: Nathan Wilson
Editors: Erlon

Nomenclature:

Rank: Genus

Status: Accepted

Name: Truncospora

Author: Pilát ex Pilát

Citation: Acta Musei Nationalis Pragae 9B (2): 108 (1953) [MB#18685]

Classification:
Notes on Taxonomy: [Edit]

Type name :
Polyporus ochroleucus Berk., London Journal of Botany 4: 53 (1845) [MB#213406]

http://www.mycobank.org/...

Clade II includes Perenniporia detrita (Berk.) Ryvarden, P. ochroleuca (Berk.) Ryvarden and P. ohiensis (Berk.)Ryvarden, and it is characterized by smaller, pileate basidiocarps, indextrinoid to weakly dextrinoid skeletal hyphae,and larger, truncate, strongly dextrinoid basidiospores. Pilát(1953) established the genus Truncospora typified by T. ochroleuca(Berk.) Pilát to accommodate the species P.ochroleuca, but many mycologists considered Truncospora as a synonym of Perenniporia(Ryvarden1972,1991;Ryvarden and Johansen1980; Gilbertson and Ryvarden1987; Ryvarden and Gilbertson1994; Dai et al.2002).Decock and Ryvarden (1999) concluded that P. detrita, P. ochroleuca and P. ohiensis formed a morphologically homogeneous alliance, which could be recognized at the genus level, and the name Truncospora would be available. Phylogenetic analysis based on DNA sequences data by Robledo et al. (2009) showed that these three taxa formeda monophyletic clade distinct from Perenniporia s.s., and should be recognized at genus level (Decock2011). In our study (Fig.7), Perenniporia ochroleuca complex forms a monophyletic entity, and it was distinct from Perenniporia s.s., which may indicate that these three species could be recognized as a separate genus of Truncospora(MycoBank:MB 18685)." New species and phylogeny of Perenniporia based on morphological and molecular characters
Fungal diversity (Impact Factor: 6.94). 01/2012; 58(1). DOI: 10.1007/s13225-012-0177-6 http://www.researchgate.net/...
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Worldwide Species key for the T. ohiensisT. ochroleuca group
1. Tramal skeletals 4–6 µm wide……………………………………………………………………………T. ochroleuca coll.
Tramal skeletals up to 4 µm wide……………………………………………………………………………..2
2. Pores 3–4 per mm, spores regularly reaching 14 µm long…………………………………………….3
Pores 4–7 per mm, spores reaching 14 µm long in exceptional cases………………………………….4
3. Mature basidiocarps with thick, black crust. Arizona (USA)……………………………………………….T. arizonica
Mature basidiocarps with ochraceous or brownish upper surface; no distinct crust. Macaronesia and the Iberian Peninsula……………………………………………………………..T. atlantica
4. Pores 4–5 per mm, in mature basidiocarps distinctly elongated and with a tendency to radial arrangement. Dissepiments rather thin (d/p = 0.3–0.6). Spore wall up 1 µm thick, only partly and weakly cyanophilous. South Florida, Hispaniola, Puerto-Rico……………………………………………………………………………………………T. tropicalis
Pores 5–7 per mm; no tendency to radial arrangement, dissepiments normally thick. Spore wall 1 µm thick or more, distinctly cyanophilous………………………………..5
5. Temperate species……………………………………………………………………………………………6
Subtropical or tropical species (the Caribbean and the Gulf of Mexico)………………………………..7
6. Basidiocarps ungulate, 3–10 mm thick. American North-East………………………………………T. ohiensis
Basidiocarps conchate, 2–4 mm thick. East Asia…………………………………………………………T. ornata
7. Context equally thick to or thicker than tube layer. Florida…………………………………………T. floridana
Context distinctly thinner than tube layer. Western and southern coasts of the Gulf of Mexico….T. mexicana


Key to accepted species of Truncospora in USA
1. Pores 3–5 per mm…………………………………………………………………………………………2
Pores 5–7 per mm……………………………………………………………………………………………4
2. Pileus light brown to black, basidiospores >12 μm long………………………………………….T. arizonica
Pileus white to ochraceous, basidiospores < 12μm long………………………………………………3
3. Pores round, dissepiments thick, skeletal hyphae unbranched, parallel……………………….T. wisconsinensis
Pores angular, dissepiments thin, skeletal hyphae branched, interwoven………………………..T. tropicalis
4. Species temperate in distribution; basidiomata brown to black………………………………..T. ohiensis
Species subtropical or tropical in distribution; basidiomata white to pale cream to ochraceous….5
5. Context thicker than the tube layer, Florida ………………………………………………………T. floridana
Context distinctly thinner than the tube layer, coastal Gulf of Mexico……………………………T. mexicana

Reference(s)

Spirin, V., Kout, J., & Vlasák, J. (2015). Studies in the Truncospora ohiensis–T. ochroleuca group (Polyporales, Basidiomycota). Nova Hedwigia, 100(1-2), 159-175. https://www.researchgate.net/...

Zhao, C. L., Xu, F., & Pfister, D. H. (2016). Morphological and molecular identification of a new species of Truncospora (Polyporales, Basidiomycota) in North America. Phytotaxa, 257(1), 89-97. https://pfistergroup.oeb.harvard.edu/...

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Created: 2007-06-19 01:53:01 CDT (-0500) by Nathan Wilson (nathan)
Last modified: 2018-03-29 01:59:29 CDT (-0500) by Erlon (Herbert Baker)
Viewed: 173 times, last viewed: 2018-06-22 12:24:25 CDT (-0500)
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