@article{douanlameli2009fungi, abstract = {Based on fungal material collected in the Mbalmayo Forest Reserve, Cameroon, two Russulaceae for which the specimens Could not be satisfactorily placed to any known species, are described as new to science. Lactarius dewevrei is strikingly characterised by the entire blackish to dark date brown basidiomata and winged basidiospores with broad branched ridges of Plinthogali type, and Russula caeruleoanulata is distinguished by the uniformly pastel yellow color, a blue line at the stem apex as well as the bluing of injured surfaces of the stem. DNA-based phylogenetic placement of the new species was assessed using nucleotide sequences of the partial nuclear large subunit ribosomal DNA (nucLSU rDNA). Molecular analyses Supported the placement of R. caeruleoanulata in R. delica-R. brevipes group of Russula subg. Compacta sect. Compactae, but did not afford a clear-cut placement of L. dewevrei, rather closely related to Lactarius subg. Plinthogali and also subg. Lactariopsis, while BLAST analyses showed similarity with subgs. Lactariopsis, Piperites and Russularia.}, author = {Douanla-Meli, C. and Langer, E.}, interhash = {deb05c535d0dcd23e072ef32f40fca06}, intrahash = {5c0d3b2369f8a6cd5b5a0bd72e98970c}, journal = {Nova Hedwigia}, month = may, number = {3-4}, pages = {491-502}, title = {Fungi of Cameroon II. Two new Russulales species (Basidiomycota)}, url = {/brokenurl#://000266698300010}, volume = 88, year = 2009 } @article{douanlameli2008phylogenetic, abstract = {Marasmius mbalmayoensis (Basidiomycotina, Marasmiaceae) growing on decayed leaves of Canarium schweinfurthii in the Mbalmayo Forest Reserve, Cameroon, is described. The species is remarkable due to the large basidiomata with shallow orange yellow umbilicus, long central stipe accompanied by similar long rhizomorphs on thickened basal mycelium and large lacrymiform to sigmoid basidiospores. The coarsely plicate pilei with lilac, violet to dark violaceous tints, and large distant adnate lamellae are reminiscent macroscopically of the tropical African species M. bekolacongoli. The phylogenetic relationship among M. mbalmayoensis and M. bekolacongoli was assessed, extended to other species of sects. Globulares and Sicci based on DNA sequences. Phylogenetic analysis based on nuc-LSU rDNA sequence data of selected Marasmiaceae taxa confirmed the placement of M. mbalmayoensis within the Marasmius spp. and its phylogenetic separation from M. bekolacongoli. Amyloflagellula inflata, which a BLAST analysis closely related to M mbalmayoensis , clustered in the same clade with M. mbalmayoensis and M. bekolacongoli. The findings also indicated the complexity of M. bekolacongoli.}, author = {Douanla-Meli, C. and Langer, E.}, interhash = {571ae0e5a614af279f5f07df6a735208}, intrahash = {15dbd4c29fb88a6ea7b1f11c4ded31e4}, journal = {Mycologia}, month = {May-Jun}, number = 3, pages = {445-454}, title = {Phylogenetic relationship of Marasmius mbalmayoensis sp nov to the tropical African Marasmius bekolacongoli complex based on nuc-LSU rDNA sequences}, url = {/brokenurl#://000258494800009}, volume = 100, year = 2008 }