摘要：World bioclimatic data on Morchella spp. are summarized and the autumnal occurrence of this principally vernal genus is discussed. A description of one Croatian collection based on living (fresh) material provides a template for detailed macro- and microscopic characterization of Morchella specimens. Ecological factors that influence morel fructification are also discussed with special emphasis on the Morchella esculenta species aggregate and the position of Mediterranean habitats in the framework of global bioclimates, while a collection from the Adriatic islet of Ilovik is studied in detail.
关键词：fructification season; bioclimates; species description template; Mediterranean
