“…With respect to size, morphology and heterochromacity, extra chromosomes, in most cases are easily identified, morphologically from the chromosomes of the normal complement. HAKANssoN (1949), VASEK (1956), andMOORING (1960) however, discussed aneuploid plants where these chromosomes do not differ in size from those of the normal set. ln polyploid species, aneuploid plants with one or a few chromosomes missing, or present in excess, usually do not show any significant gross morphological variations from the normal plants.…”