New chorological data are presented for 128 species and subspecies from Bulgaria (1, 48-54, 69, 77-79, 85-89, 107-120), Greece (11-44, 55-67, 70-76, 80-84, 121-128), Macedonia (90-106) and Turkey-in-Europe (2-10, 45-47). The taxa belong to the following families: Apiaceae (90, 91), Apocynaceae (11), Asphodelaceae (82), Asteraceae (12, 13, 48, 71, 80, 85, 92, 93, 121), Boraginaceae (14, 55, 86), Brassicaceae (8, 15, 56-58, 72, 122), Caryophyllaceae (16, 17, 123), Convolvulaceae (73, 124), Cornaceae (9), Crassulaceae (18-20), Cyperaceae (102, 103), Dipsacaceae (94), Euphorbiaceae (59, 95), Fabaceae (5-7, 21-24, 49-53, 60-63, 74-76), Fumariaceae (45), Geraniaceae (3), Grossulariaceae (96, 97), Hyacinthaceae (66, 67), Hypericaceae (125), Iridaceae (36-39), Lamiaceae (25, 26), Lemnaceae (69), Liliaceae (68, 83, 84), Linaceae (2, 87), Malvaceae (27, 28), Orchidaceae (1, 77-79, 89, 105), Orobanchaceae (29, 64), Papaveraceae (46, 47), Poaceae (40-43, 104, 107-120), Polygonaceae (70), Primulaceae (30), Ranunculaceae (31, 98), Rhamnaceae (4), Rosaceae (10, 32, 99, 106, 126, 127), Rubiaceae (81), Santalaceae (65, 88), Scrophulariaceae (33-35, 54, 100, 101, 128) and Typhaceae (44). New reports for countries are: Macedonia - Sorbus xlatifolia (106). The publication includes contributions by: A. Asenov (1), M. Aybeke (2-4), M. Aybeke, C. Kurt & A. Semerci (5-7), M. Aybeke & C. Yarcı (8-10), B. Biel & Kit Tan (11-44), F. Dane, M. Aybeke & V. Altay (45-47), E. Filipova & K. Vassilev (48-54), K. Giannopoulos, Kit Tan & G. Vold (55-68), B. Gyosheva & V. Valchev (69), K. Koutsomarkos, Kit Tan & I. Tsialtas (70), K. Polymenakos & Kit Tan (71-76), A. Popatanasov (77-79), D. Shaw & Kit Tan (80, 81), Kit Tan & M. Issigoni (82-84), A. Tashev (85-89), A. Teofilovski (90-105), A. Teofilovski, J. Zieliński & V. Vladimirov (106), K. Vassilev & H. Pedashenko (107-120), G. Zarkos, V. Christodoulou, Kit Tan & G. Vold (121-128). [ABSTRACT FROM AUTHOR]