The chromosomal spread and karyotype of Bleak (Alburnus alburnus) from Anzali lagoon were identified using tissue squashing techniques with injection of 0.5ml/100g body weight of 0.01% Colchicines solution in fish fingerlings. Kidney and gill tissues were then extracted and chopped in KCl 0.045M for 20 min and fixed in Carnoy solution in 3 stages. The chromosomal spreads were stained in 20% Gim...

Chromosome numbers are reported here for the first time from 117 individuals of Solidago rugosa and S. fistulosa. Including 178 previously published reports two species plus latissimifolia, chromosome have been determined 295 269 locations. Only diploids (2n = 18) were found throughout range fistulosa on coastal plain in eastern U.S.A. (44 counts). Diploids northern portion tetraploids 36) hexa...

In this contribution, new chromosome data obtained on material collected in Italy are presented. It includes counts for Centaurea aegusae , Hieracium racemosum subsp. lucanum, H. australe australe, Lysimachia arvensis arvensis, Micromeria graeca graeca, and M. consentina.