ACHILLEA MILLEFOLIUM COMPLEX IN CANADA AND PORTIONS OF THE UNITED STATES

• Published in: Canadian Journal of Botany
• Main Authors: Mulligan, Gerald A., Bassett, I. John
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1959
• Subjects: Plant Science; Canada; Pacific; Nutt; Newfoundland; Alaska; Aleutian Islands; Prince Edward Island
• Online Access: http://dx.doi.org/10.1139/b59-007; http://www.nrcresearchpress.com/doi/pdf/10.1139/b59-007

The chromosome numbers of plants of the Achillea millefolium complex from 27 locations in North America are reported. The levels of polyploidy found are correlated with diameters of the pollen grains. Measurements of pollen grains from more than 300 herbarium specimens are used as an indication of t...