Geoglossaceae

About: Geoglossaceae is a research topic. Over the lifetime, 45 publications have been published within this topic receiving 1015 citations.

Northern species of earth tongue genus Thuemenidium revisited, considering morphology, ecology and molecular phylogeny.

Abstract: Thuemenidium is a small earth tongue genus with three recognized white-spored species. Within Thuemenidium, T. atropurpureum and T. arenarium have been reported only from the northern hemisphere while T. berteroi is known solely in the southern hemisphere. We reviewed the ecology, examined the morphology and inferred the systematic positions of northern species of Thuemenidium from LSU-rDNA gene phylogeny of 48 taxa in Pezizomycotina including recent collections. Our results suggest that Thuemenidium in its current sense is polyphyletic and that T. atropurpureum, closely related to Microglossum and Leotia species, is a member of Leotiaceae (Helotiales, Leotiomycetes). Our phylogeny placed the other northern species, T. arenarium, in Geoglossaceae (Geoglossales, Geoglossomycetes), retaining genus Thuemenidium, pending further investigation.

Studies on the geoglossoid fungi of Russia: the genus Leucoglossum.

Abstract: Leucoglossum is a small genus in the family Geoglossaceae which has long been understudied. The genus consists of two species resembling Trichoglossum due to the presence of setae, but differing in its ascospores that remain hyaline for long periods, becoming pale brown or brown only in maturity. Both Leucoglossum species are known from Eurasia, although collections are rare over the landmass. L. leucosporum is found in Europe, while L. durandii has been reported only from China. This study summarizes all current information on the genus Leucoglossum in Russia, combining a critical morphological revision involving type material of L. leucosporum with a phylogenetic reconstruction based on a combined data set of the internal transcribed spacer region of the nuclear ribosomal DNA (nrITS1–5.8S–ITS2) and the 28S nuclear ribosomal large subunit region (nrLSU). The comprehensive morphological study resulted in supplemented description of Leucoglossum and L. leucosporum. The results of the molecular study confirmed that Leucoglossum represents a separate monophyletic group related more to Geoglossum than to Trichoglossum.

Geoglossaceous fungi in Slovakia: rare and new taxa for the territory

Abstract: Field research on grassland fungi in Slovakia resulted in collection of several rare fungi, including also geoglossaceous taxa, such as Microglossum viride (5 sites), Trichoglossum hirsutum (13 sites), Trichoglossum walteri (5 sites), Trichoglossum variabile (1 site), Microglossum olivaceum (2 sites), Thuemenidium atropurpureum (1 site). Last three species are new for Slovakia.

On the structure, ecology and distribution of the species of Mitrula s. lat. (Ascomycetes, Geoglossaceae)

Abstract: The matter under consideration is a part of my research including the larger fungi in arctic and subarctic regions. For eight years I have also collected Mitrula material, and some notes are published in KALLIO & KANKAINEN (1964, 1966 ). I have had the opportunity to participate on the excursions of Kevo, the Subarctic Research Station of the University of Turku under the leadership of Prof. Paavo Kallio. Our Mitrula collections from these trips to Spitsbergen in 1966 and northeastern Canada in 1967 are taken into consideration in the present paper. The specimens studied are preserved in the following herbariums:

Fungal diversity associated with bamboo litter from Bambusetum of Rain Forest Research Institute, Northeast India

Abstract: Kumar R, Tapwal A, Pandey S, Rishi R. 2013. Fungal diversity associated with bamboo litter from Bambusetum of Rain Forest Research Institute, Northeast India. Biodiversitas 14: 79-88. Fungi play an important role in leaf litter decomposition due to their ability to break down the lignocelluloses matrix, which other organisms are unable to digest. Diversity of bamboo leaf litter fungi from fallen leaves and undergoing active decomposition leaves in different season and different depth was carried out in 2009-10. Twenty four samples were collected from Bambusetum of Rain Forest Research Institute (RFRI),  Northeast India. The moist chamber, direct isolation and dilution plate methods were used to assess the diversity of fungal species. Fungi were cultivated on 3% malt extract agar and half strength potato dextrose agar. The litter was divided into freshly fallen senescent leaves (grade 1) and leaves already undergoing active decomposition (grade 2). Moist chamber incubation of the litter revealed 45 fungal taxa belonging to 22 genera. fungal taxa were found on grade I and 39 fungal taxa found on grade II litter. Although 24 fungal taxa were common to both grades, Differences were observed in percentage occurrence of fugal species between the two grades of litter. Periodic surveys were carried out to collect macrofungi. Young and matured carpophores of 16 macro fungi species were collected in different seasons. Out of these macrofungi, 3 species belongs to family Entolomataceae and Agaricacea, two species belongs to Tricholomataceae and Geoglossaceae one species belongs to each family Dacrymycetaceae, Pluteaceae, Coprinaceae, Marasmiaceae Lycoperdaceae and Phallaceae. The bamboo leaf-litter was selected for the present syudy because of the dominance and great economic value of bamboo vegetation in North-east India.