Geographic location of the study area in Turkey, grid system adopted by Henderson (1961) Forest floor vascular plants in the study area are 170 taxa, the number of endemic species is 18, the ratio of endemism is 10.59% (Öner and Abay, 2005a). 

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... forests chosen as the study area is in the Ilgaz Mountains range which are in the 122 important plant areas in Turkey (Avcı and Özhatay, 2005). Although the National park of Ilgaz Mountains range was explored on account of mosses (Abay and Çetin, 2003), the south parts of the mountain ranges were not studied up to now. Thus, the number of bryophyte records in the mountain ranges is far from being complete. So, we believed the necessity of studying the mosses and liverwort of the Yenice Forests located in the south parts of the Ilgaz mountains. Up to now, many bryophyte studies were done in A2 grid square. These are: Robinson and Godfrey (1960), Henderson (1961–1963), Henderson and Prentice (1969), Çetin ve Yurdakulol (1985-1986-1988), Çetin (1988a-1988b), Özalp (1995), Gökler ve Özeno ğ lu (1999), Çetin and Uyar (1999), Uyar ve Çetin (2000), Keçeli and Çetin (2000), Uyar and Çetin (2001a-2001b), Çetin et al. (2002), Uyar (2003a-2003b), Abay and Çetin (2003), Uyar and Keçeli (2004), Keçeli (2004), Keçeli et al. (2004), Keçeli and Çetin (2005), Abay [2005] 2006, Keçeli and Çetin (2006), Uyar and Çetin (2006), Uyar et al. (2007), Abay (2008), Abay ve Ursava ş (2008) and Ursava ş ve Abay (2008). We reached as many possible different vegetation types, habitats and microhabitats as for the bryophyte species’ richness. Most of the mosses are found in Büyük Hacet and Küçük Hacet Hills. These species belong to various habitats: open woodland, grasses, stony and rocky places. As Öner (2001) declared ; the study area is in between the altitudes 790 m (Dede area) and 2546 m (Büyük Hacet Hill). And also Tülü (2174 m), Gökyar (2264 m), Çal (1582 m) Hills and Gökçay and Kubbe streams are important localities (Fig. 1). As Öner and Abay (2005a-2005b) said “Yenice Forests cover 11.585 ha of the total area, 7.144 ha of which has forest quality, and 4.441 ha of which lacks forests. 5.201 ha of the forest areas are productive high forests. The rest, 1.943 ha, forest areas are unproductive high forests” (Anonymous, 1996). The study area’s climate rates were taken from Ilgaz meteorological station (885 m). As Đ mal (2007) said, the o o annual average temperature is 10.3 oC. The highest temperature is 41.4 C in July and the lowest is -20.6 C in February. The annual rain precipitation is 439,9 mm (Anonymous, 2005). When the annual temperature and rain rates of the mentioned meteorological observation station’s last 25 years (1980-2005) were considered, the water balance was given in Fig. 2. The area is seen to have a climate like arid-dry sub humid, mesothermal, no or very less water surplus, close to oceanic climate type ( Đ mal, 2007). The study area has been visited in different times of the vegetation in between the years 2005-2006 in order to collect bryophyte samples. The stations, where the 1019 bryophytes were collected, were selected according to different plant communities, the geographical condition and the altitudes variation (Table 1). The specimen identification was based on Lawton (1971), Crum (1973), Smith (1980-1990-2004), Nyholm (1981), Paton (1999), Cortini (2001-2006), Kürschner (2001), Greven (2003), Herrnstadt and Heyn (2004). For the nomenclatures of the liverworts and mosses, we followed Grolle and Long (2000) and Hill et al. (2006). The specimens are preserved in the private collections of Serhat URSAVA Ş (Ankara, Turkey). According to Henderson (1961)’s Turkey grid square system, the study area is located in A2. The new record bryophyte taxa were obtained from the following literatures: Schiffner (1897), Robinson and Godfrey (1960), Henderson (1961-1963), Henderson and Prentice (1969), Çetin and Yurdakulol (1985), Çetin and Yurdakulol (1988), Çetin (1988a, 1988b, 1989), Gökler and Öztürk (1991), Çetin and Uyar (1999), Özalp (1995), Uyar and Çetin (2000), Keçeli and Çetin (2000), Uyar and Çetin (2001a, 2001b), Çetin et al. (2002), Abay and Çetin (2003), Uyar (2003a- 2003b), Uyar and Keçeli (2004), Abay [2005] 2006, Uyar and Çetin (2006), Uyar et al. (2007), Abay et al. (2007), Abay (2008), Abay ve Ursava ş (2008) and Ursava ş ve Abay (2008). The firstly recorded taxa from A2 were indicated by asteriks (*). The status of the taxa for Turkey was determined by reviewing the related literature (Uyar and Çetin, 2004; Kürschner and Erda ğ , 2005). In the statements of specimens: The first number shows the locality no., the bold abbreviation shows the habitat, U and TK abbreviations show legit and determinavit (Serhat Ursava ş and Tamer Keçeli), and the last number shows the collection ...