Bolu ilinin monokotiledon geofit florası

This study was carried out between 2012 and 2013 in order to determine petaloid monocotyledonous geophytic Flora of Bolu province, located within A3 and A4 of the grid system in Turkey. In the research area, 818 plant specimens that consisted of 116 taxa belonging to 10 families and 40 genera were collected. From all collected specimens, four taxa are new records for the A3 grid square, one taxon is a new record for the Black Sea region and 14 taxa are new record for Bolu province. The number of endemic taxa in the research area is 17 and the rate of endemism is 14.66%. The distribution of the taxa according to the phytogeographical regions, the Mediterranneans ranked first among the specimens, accounting for 30.17%, followed by the euxine and/or Euro-Siberians 24.14%, Irano-Turanians 7.76%. The remain part of the identified species (37.93%) are widespread and/or unknown phytogeographic origin. The most common families in the research area according to APG III system are as follows: Orchidaceae has the highest number of taxa (31.03%) and followed by Asparagaceae (19.83%), Amaryllidaceae (18.10%) and Iridaceae (12.07%). The most common genera in the area are as follows: Allium L. has the highest number of taxa (14.66%) and followed by Ornithogalum L. (9.48%), Iris L. (6.03%). Moreover, of all collected taxa, 43.10% bulbous, 24.14% rhizomous, 21.56% tuberous and 11.21% are cormous plants. Concerning flowering time, 94.83% of the taxa bloom in early-spring and spring, while 5.17% bloom in autumn. Keywords: Bolu, Flora, Geophytes, Petaloid monocotyledonous, Taxonomy