Chromosome studies on plants from Paraguay II

J. MOLERO; DAVIÑA J. R.; HONFI A. I.; D. FRANCO; A. ROVIRA

CANDOLLEA

Conservatoire et Jardin Botanique de la Ville de Geneve

Lugar: Suiza; Año: 2006 vol. 61 p. 373 - 392

0373-2967

Abstract. Chromosome numbers have been obtained for 39 populations of vascular plants from Paraguay belonging to 33 species grouped in 23 families. Chromosome studies for 13 species are reported for the first time. The data obtained about five other species differ from previous chromosome counts. Some of the numbers are of interest because they relate to endemic or rare species or because they provide data of special evolutionary significance. Noteworthy findings include Angelonia gardneri (n = 10), Angelonia integerrima (2n = 20), Asclepias mellodora (2n = 22), Aspilia montevidensis var. setosa (n = 34), Calea uniflora (n = 16), Dolichopsis paraguariensis (2n = 22, n = 11), Heteropteris glabra (2n = 31), Hibiscus striatus (2n = 52), Lupinus paraguariensis (2n = 18), Microlobius foetidus (2n = 26), Myrsine guianensis (2n = 48), Thevetia bicornuta (n = 10), Tibouchina gracilis (n = 12) and Vitex Cymosa (n = 16).