Georgian Scientists/ . 6 N 3, 2024 139 Georgian Scientists Vol. 6 Issue 4, 2024 https://doi.org/10.52340/gs.2024.06.04.13 - " , , , “ . , , 577101640; lkodanovi@gmail.com : , 2 , 7 19 . , 15 , 19 23 . : , , , : , , . , . , 2 - . ( . ,, “ (1986 .) 5 : , , , , 2 - . 82 000 , 90% . , , , . Georgian Scientists/ . 6 N 3, 2024 140 . . . , , 9 . , , ( . 1). 14-15 , . . 1 , 2014-2019 , , , , . : Plants of the world online – , . The floristic regions of the world- . : (2015-2019 .) 15 , 19 23 . : - . Georgian Scientists/ . 6 N 3, 2024 141 23 7 - Araucaria angustifolia (Bertol.) Kuntze, Quillaja brasiliensis (A.St.-Hil. & Tul.) Mart., Dolichandra unguis-cati (L.) L.G.Lohmann, Podocarpus lambertii Klotzsch ex Endl., Cortaderia selloana (Schult. & Schult.f.) Asch. & Graebn., Psidium cattleianum Afzel. ex Sabine, Lantana camara L. 5 - Butia capitata (Mart.) Becc., Abutilon pictum (Gillies ex Hook.) Walp., Schinus terebinthifolia Raddi, Manihot carthaginensis (Jacq.) Müll.Arg., Citharexylum reticulatum Kunth. 11 - Araucaria araucana (Molina) K.Koch, Cestrum parqui (Lam.) L'Hér., Colletia armata Miers, Colletia paradoxa (Spreng.) Escal., Jubaea chilensis (Molina) Baill., Luma apiculata (DC.) Burret, Peumus boldus Molina, Schinus polygama (Cav.) Cabrera, Podocarpus nubigenus Lindl., Acca sellowiana (O.Berg) Burret, Passiflora caerulea L. ,, “ (IUCN) 10 : Araucaria angustifolia - (CR); Araucaria araucan, Jubaea chilensis - (EN); Podocarpus lambertii, Podocarpus nubigenus - (NT); Citharexylum reticulatum, Cestrum parqui, Luma apiculata, Peumus boldus, Schinus polygama (LC). : 1. (2014-2019) 15 , 19 23 2. , 2 - 3. 7 , 11 5 . 4. ,, “ (IUCN) 10 , (CR) - 1; (EN) - 2; (NT) - 2; (LC) - 5 . : 1. ,, , 100“, , ,, “, , 2012. 2. . , . ,, “, ,, “, 1998 3. . . ,, ”, " " 1978. 4. D.R. Zenni et al. ,,Plants invasions in South America“, Springer Nature Switzerland AG 2022. 5. https://powo.science.kew.org/ 6. http://www.theplantlist.org/ 7. https://www.iucnredlist.org/ Georgian Scientists/ . 6 N 3, 2024 142 Diversity of Chilean-Patagonian and Brazilian Floristic Regions in Batumi Botanical Garden Lana Kodanovi PHD in Biology Batumi Botanical Garden Curator of South American, New Zealand and Australian plant collection lkodanovi@gmail.com Tel: 577 10-16-40 Introduction and Research Goal: Floristic zoning involves dividing the Earth's surface into floristic districts of various ranks. Within each district, the flora is relatively uniform and distinct from the flora of other districts. The kingdom is the largest unit of floristic zoning, followed by the district and the province. South America is home to approximately 82,000 species, with 90% of them being endemic. The continent experiences abundant moisture, frequent tropical rains, dry summers in the western subtropical zone, and rainy winters. Precipitation levels increase towards the east, with some areas experiencing drought. The soil cover is primarily reddish-yellow. The Batumi Botanical Garden houses diverse flora, organized into phytogeographical divisions based on the plants' origin. Currently, it includes 9 phytogeographical divisions. The South American phytogeographic section is situated on a terraced, wind-protected slope facing the sea. The average air temperature in the garden is 14-15 C, and the predominant soil type is red soil. Due to the diversity of plants, the continent includes 2 kingdoms - Neotropical and Holantarctic. According to A. Takhtajian in "Floristic Regions of the Earth" (1986). The Neotropical Kingdom is further divided into 5 regions: Caribbean, Guyana Highlands, Amazon, Brazil and Andes. The Holantarctic Kingdom is divided into 2 regions - Fernandez and Chile- Patagonia. Therefore, the study aims to determine the natural distribution of the collection in the phytogeographical section of South America, which includes 15 families, 19 genera, and 23 taxa, categorize them into the corresponding floristic district, analyze and separate the plots, name the district, and plant the species according to the floristic district during the annual planting. Research Methodology: The natural distribution areas of the species have been defined using the Plants of the World Online website. Assignment to different floristic regions has been done according to the Floristic Regions of the World by A. Takhtajian. Results: The natural distribution areas were specified and two floristic regions were distinguished in the phytogeographical section of South America: Chile-Patagonia and Brazil. Out of the 23 species in the collection, 7 species are found in both districts: Araucaria angustifolia (Bertol.) Kuntze, Quillaja brasiliensis (A.St.-Hil. & Tul.) Mart., Dolichandra unguis-cati (L.) L.G.Lohmann, Podocarpus lambertii Klotzsch ex Endl., Cortaderia selloana (Schult. & Schult.f.) Asch. & Graebn., Psidium cattleianum Afzel. ex Sabine, Lantana camara L.; 5 species in the Brazil district: Butia capitata (Mart.) Becc., Abutilon pictum (Gillies ex Hook.) Walp., Schinus terebinthifolia Raddi., Manihot carthaginensis (Jacq.) Georgian Scientists/ . 6 N 3, 2024 143 Müll.Arg., Citharexylum reticulatum Kunth. 11 species were identified in the Chile-Patagonia district: Araucaria araucana (Molina) K.Koch, Cestrum parqui (Lam.) L'Hér., Colletia armata Miers, Colletia paradoxa (Spreng.) Escal., Jubaea chilensis (Molina) Baill., Luma apiculata (DC.) Burret, Peumus boldus Molina, Schinus polygama (Cav.) Cabrera, Podocarpus nubigenus Lindl., Acca sellowiana (O.Berg) Burret, Passiflora caerulea L. Conclusion: Based on the analysis of the natural distribution of plants and species, we can conclude that the species distribution area in the phytogeographical section of South America includes both regions. Additionally, there are species that are distributed only in one region. Keywords: floristic zoning, flora of South America, Batumi Botanical Garden, biodiversity, collection