TY - JOUR JO - Ascomycete.org JF - Ascomycete.org SN - 2100-0840 PB - Ascomycete.org TI - Ericboehmia, a new genus segregated from Ostreichnion in the Hysteriaceae, with the new species E. saulensis AU - Gardiennet,Alain AU - Lechat,Christian AU - Fournier,Jacques VL - 11 IS - 6 SP - 171 EP - 176 PY - 2019 Y1 - 2019/12/24 DA - 2019/12/24 DO - 10.25664/art-0269 UR - https://doi.org/10.25664/art-0269 AB - A hysteriaceous dothideomycete with conchate ascomata with brittle wall was collected three times in French Guiana on dead corticated twigs of Caesalpinia pulcherrima. Examination of morphological characters and phylogenetic analysis of LSU sequences showed its affinities with the genus Ostreichnion and particularly with O. curtisii, with which it shares an ascospore morphology strongly deviating from that of O. sassafras, the type species. Our morphological and molecular results led us to the segregation of the new genus Ericboehmia to accommodate those species previously assigned to Ostreichnion featuring oblong didymospores. The new species E. saulensis is described and illustrated based on these three collections. It is shown to differ from O. curtisii by ascospore dimensions and septation and is proposed as type species. In addition, based on our results, six new combinations are proposed to accommodate in Ericboehmia some species recently added to Ostreichnion or Hysterium. A dichotomous key to the species accepted in Ericboehmia is proposed ID - AscoOrg-ID269 DB - Ascomycete.org https://ascomycete.org LA - english ER -