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1 June 2007 RELATIONSHIPS OF THE NEW ENGLAND BONESET, EUPATORIUM NOVAE-ANGLIAE (ASTERACEAE)
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Abstract

Resolution of the systematic relationships of the New England Boneset, Eupatorium novae-angliae, has been elusive. This rare species, known from only 15 sites in Massachusetts and Rhode Island, has been demonstrated to be male-sterile and agamospermous, and thus inferred to be polyploid, but its progenitor diploids have not been identified clearly. In a study that hinged on a combination of fieldwork and morphological study together with molecular analysis, we have demonstrated that E. novae-angliae contains ITS repeats characteristic of two sexual diploid species of the genus. One is the widespread E. perfoliatum, the second is a previously unrecognized endemic to clay-based Carolina bay and depression meadow habitats in the Carolinas, that had been included in E. leucolepis and is now recognized as a separate species, E. paludicola. The molecular data highlight the distinctiveness of E. novae-angliae and underscore the need for efforts to continue to protect it in its native habitat.

Edward E. Schilling, Richard J. LeBlond, Bruce A. Sorrie, and Alan S. Weakley "RELATIONSHIPS OF THE NEW ENGLAND BONESET, EUPATORIUM NOVAE-ANGLIAE (ASTERACEAE)," Rhodora 109(938), 145-160, (1 June 2007). https://doi.org/10.3119/0035-4902(2007)109[145:ROTNEB]2.0.CO;2
Published: 1 June 2007
JOURNAL ARTICLE
16 PAGES


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