The research was carried out between 2002 and 2004. Approximately 1465 vascular plant specimens, plants infected with microfungi or not, were collected from the area. At the end of the study of the host plants, 35 families, 114 genera, and 138 host plant species (151 taxa) were established. | Turk J Bot 30 (2006) 251-265 © TÜB‹TAK Research Article Microfungi Identified from the Flora of Ordu Province in Turkey Sanl› KABAKTEPE, Zeliha BAHÇEC‹O⁄LU* Inönü University, Science and Art Faculty, Department of Biology, Malatya - TURKEY Received: Accepted: Abstract: In this study, 101 species of microfungi and their hosts, which were found in Ordu Province are described. The research was carried out between 2002 and 2004. Approximately 1465 vascular plant specimens, plants infected with microfungi or not, were collected from the area. At the end of the study of the host plants, 35 families, 114 genera, and 138 host plant species (151 taxa) were established. The 101 species of microfungi were observed on the collected host specimens. These species belong to 23 genera and 13 families; 24 species belong to Ascomycota, 73 to Basidiomycota, and 4 to Mitosporic Fungi (Deuteromycota). One microfungus is given only at the generic level and 6 species are new records for Turkey. Key Words: Microfungi, new records, parasite, Ordu, Turkey Ordu Yöresi Mikrofunguslar› Özet: Bu makalede Ordu il s›n›rlar› içerisinde bulunan 101 mikrofungus türü ve konakç›lar› tan›mlanm›flt›r. Araflt›rma 2002 ve 2004 y›llar› aras›nda yap›lm›flt›r. Alandan yaklafl›k olarak mikrofungusla enfekte olmufl ve enfekte olmam›fl 1465 kadar vasküler bitki örne¤i toplanm›flt›r. Bu konakç› örnekler üzerinde yap›lan çal›flmalar sonucunda 35 familya ve 114 genusa ve 138 tür (151 takson) tespit edilmifltir. Toplanan konakç› örnekler üzerinde 101 mikrofungus türü tespit edilmifltir. Bu türler 23 genus ve 13 familya ya dahildir. 24 tür Ascomycota, 73 tür Basidiomycota, 4 tür Mitosporik Fungi (Deuteromycota)’ya dahildir. Bir mikrofungus örne¤i genus düzeyinde verilmifltir. 6 tür Türkiye için yeni kay›tt›r. Anahtar Sözcükler: Microfungus, yeni kay›t, parazit, Ordu, Turkiye Introduction The identification of the parasitic fungal flora of a region is the first and most important step in .