4.Rare and Endemic Plant Species in Conacu - Negreṣti Valley, Dobrogea, Romania
Monica Axini and Fawaz Al-Azki
Conacu-Negreṣti Valley is located in the center of Cobadin Plateau, subunit of Negru Vodă Plateau, South Dobrogea, Romania. It landscape consists predominantly of Cretaceous and Sarmatian limestone, placed on a Precambrian background and covered by a thick blanket of 40 m of Quaternary loess. The valley is characterized by an extremely rich and diverse geo-biodiversity with many rare and endemic species of wildlife Dobrogea and Romania, too. The paper presents the floral diversity identified so far in this valley, focusing on the description of 12 species of rare and endemic plants identified in the area, species of great scientific and practical importance. The data represent the results of the research activities developed within the framework of our scientific and educational program on geo-bio-diversity and its protection of the Conacu- Negreṣti Valley from 2002 until now. Keywords: Plants diversity, Rare and endemic species, Conservation status, Natural and human threats, Conacu-Negreşti Valley, Dobrogea - Romania