https://lcornet.github.io/tags/2012/ Recent content in 2012 on Luc Cornet Hugo en-us https://lcornet.github.io/publications/vincent/ Mon, 01 Jan 0001 00:00:00 +0000 https://lcornet.github.io/publications/vincent/ <p><strong>VINCENT DEMOULIN, LUC CORNET, EMILIE DELBRUYÈRE and DENIS BAURAIN</strong><br> The rare tropical Gasteromycetes Lycogalopsis solmsii has been found twice at thirty years interval in the Singapore Botanic Gardens. From the most recent find a culture could be isolated, which allowed DNA extraction and sequencing of about 2000 bp from the nuclear ribosomal DNA. Comparison to a large sample of Basidiomycetes was only possible for a part of the large ribosomal subunit, but clearly indicated affiliation to the gomphoid-phalloid group, without any relationship to Lycoperdales or Agaricales, as stated in the Dictionary of the Fungi.<br> <a href="https://orbi.uliege.be/bitstream/2268/151465/1/Demoulin_et_al_2013_Acta_Mycologica_postprint_editor.pdf">https://orbi.uliege.be/bitstream/2268/151465/1/Demoulin_et_al_2013_Acta_Mycologica_postprint_editor.pdf</a></p> https://lcornet.github.io/publications/calli/ Mon, 01 Jan 0001 00:00:00 +0000 https://lcornet.github.io/publications/calli/ <p><strong>Luc Cornet, Philippe Gerrienne, Brigitte Meyer-Berthaud and Cyrille Prestianni</strong><br> A permineralized Callixylon trunk is reported from Ronquières, a mid to late Givetian (Middle Devonian) locality from Belgium. The specimen consists of an 80 cm long trunk adpression whose central area is preserved as a pyrite permineralization. The pyritized area is composed of a eustele surrounded by secondary xylem. Tracheids show radially aligned groups of pits separated by unpitted regions on the radial walls of tracheids. The specimen belongs to a group of species characterized by a predominance of uniseriate rays and the lack of ray tracheids. This Callixylon specimen is one of the earliest representatives of the genus. It coexists at the locality with large cladoxylopsids and provides direct evidence that the tree habit had evolved in the archaeopteridalean progymnosperms by the Givetian.</p>