Article

This research was carried out in Amasya (Turkey) province between September 2001 and September 2004 and about 1000 plant specimens were collected from the area during this period. Identification of the specimens revealed the presence of 457 taxa belonging to 301 genera in 74 families. All of the 457 taxa belong to Spermatophyta. Of these 4 taxa belong to Coniferophyta, the remaining 453 taxa belong to Magnoliophyta. Some 57 taxa of Magnoliophyta are classified within the Liliopsida and remaining 396 taxa within the Magnoliopsida. A total of 50 taxa determined in the research area (10.94%) are endemic for Turkey. Eleven taxa are new records for square A5. The scattering ratios of the taxa for the phytogeographic regions are as follows: Irano-Turanian elements 77 (16.8%), Euro-Siberian elements 39 (8.5%), Mediterranean elements 35 (7.6%), Widespread and unknown scatteries 306 (66.9%). The largest five families according to taxon numbers are as follows: Asteraceae 56, Fabaceae 42, Lamiaceae 35, Poaceae 33, Brassicaceae 33. The largest five genera and number of species included are as follows: Astragalus L. 7 species., Alyssum L. 7 species, Vicia L. 6 species, Salvia L. 6 species, Centaurea L. 5 species.