© 2016 Royal Botanic Gardens and Domain Trust plantnet.rbgsyd.nsw.gov.au/Telopea • escholarship.usyd.edu.au/journals/index.php/TEL • ISSN 0312-9764 (Print) • ISSN 2200-4025 (Online) T ELOPEA Journal of Plant Systematics Volume 19: 65–72 Publication date: 30 May 2016 dx.doi.org/10.7751/telopea10358 Two new moss records in the family Grimmiaceae from Turkey, Southwest Asia Mustafa Karakaş and Tülay Ezer* Niğde University, Faculty of Science, Department of Biology, 51100 Niğde-Turkey *Author for correspondence: tuezer@gmail.com, tezer@nigde.edu.tr Abstract Grimmia incurva Schwägr. and Schistidium umbrosum (J.E.Zetterst.) H.H. Blom (Grimmiaceae) are reported for the first time from Turkey, Southwest Asia. Turkish plants are described and illustrated from material collected from Göllüdağ Volcano in the Central Anatolia (Niğde) which has a semi-arid, continental climate with a severe frost period in winter. Introduction The genus Grimmia is one of the largest groups in the acrocarpous moss family Grimmiaceae. Species of Grimmia are often difficult to identify (Ignatova and Muñoz 2004), and likewise the genus Schistidium has a reputation for being taxonomically difficult. The genus Schistidium currently comprises around 120 species (McIntosh 2007), while Grimmia contains about 95 species (Hastings and Greven 2007). Grimmia species grow on rocks at low to high altitudes on all continents, and most of them are drought resistant. Therefore, they can withstand extremely harsh cold and dry climates (Ignatova and Muñoz 2004). According to Ros et al. (2013) 29 species of Grimmia have been reported for Turkey. Here we report Grimmia incurva Schwägr. new for Turkey, taking to 30 the number of Grimmia species reported for this country. Members of the genus Schistidium generally grow on nutrient-rich rocks in arctic to temperate regions (Batan et al. 2013). Nineteen species of Schistidium have been reported for Turkey (Kürschner and Erdağ 2005, Townsend 2005, Tonguç Yayıntaş 2008, 2014, Kürschner and Frey 2011, Batan et al. 2013). Schistidium umbrosum (J.E.Zetterst.) H.H. Blom increases this total by one. Description and illustration of the species further contributes to the moss flora of Turkey. Material and Methods This study is based on specimens collected from Göllüdağ Volcano in the Central Anatolia (Niğde) in May 2015 (Fig. 1) and now held in the Herbarium of Niğde University. The specimens were identified using relevant literature (Blom 1996, Cortini-Pedrotti 2001, Greven, 1995, 2003, Hastings and Greven 2007, Ignatova and Muñoz 2004, Nyholm 1998, McIntosh 2007, Smith 2004).