Figure 6 - uploaded by John C. Semple
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Examples of Solidago leiocarpa used in the multivariate study: A. Ringius 1557 (WAT). B. Upper stem and leaf, Ringius 1586 (WAT). C. Lower portion of inflorescence, Ringius 1557 (WAT). Scale bar = 1 cm in B; = 1 mm in C.
Source publication
Solidago simplex from the Sierra Madre Oriental of Mexico is included in a multivariate study with S. glutinosa and S. spathulata of subsect. Humiles and S. leiocarpa and S. multiradiata of subsect. Multiradiatae in order to assess statistical support for recognizing S. simplex as a separate species from S. glutinosa of the Rocky Mts and Great Plai...
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Citations
... Rediscovery of S. plumosa and publication of S. austrocaroliniana, S. arenicola, and S. kralii subsequently expanded the taxa to be studied. Semple, Ma and Tong (2016) used multivariate statistical methods to demonstrate the distinctiveness of S. simplex from Mexico from S. glutinosa from Canada and the US. Nesom (1989) had placed S. glutinosa into synonymy under S. simplex following traditional taxonomic observation methods. ...
... Solidago simplex is treated here as a species limited in distribution to just northeastern central Mexico following Semple, Ma, and Tong (2016) with S. glutinosa treated as a separate much more widely distributed species in Canada, the US, and northern Baja California, Mexico (Fig. 22). Earlier, Semple and Cook (2006) had followed Nesom (1989) in treating S. glutinosa as a synonym of S. simplex. ...
... Earlier, Semple and Cook (2006) had followed Nesom (1989) in treating S. glutinosa as a synonym of S. simplex. The multivariate analyses of 12 species, the four western species, and just S. glutinosa and S. simplex presented above provided additional support for treating S. simplex and S. glutinosa as a species and included more individuals of S. glutinosa than had been scored in Semple, Ma, and Tong (2016). Using just three traits (number of disc florets, number of ray florets, and upper stem leaf width), 97% of the 33 S. glutinosa specimens included in the two species analysis were assigned a posteriori to S. glutinosa and 91% of the 11 S. simplex specimens were assigned a posteriori to S. simplex. ...
A multivariate morphometric study of the goldenrod group Solidago subsect. Humiles was conducted to assess the morphological differences among Solidago arenicola, S. austrocaroliniana, S. bellidifolia, S. chlorolepis, S. gillmanii, S. glutinosa, S. kralii, S. ontarioensis, S. plumosa, S. racemosa, S. randii, S. simplex, and S. spathulata. Eleven analyses were performed on different combinations of a priori species groups and traits using a matrix of 170 specimens by 39 traits and provided support for recognizing 13 species. An identification key to all 13 species in S. subsect. Humiles is included.
... Humiles also includes five rare to very rare species in the Great Lakes Region and the northeastern USA and adjacent Canada (S. chlorolepis Fern., S. gillmanii (A. Gray) Steele, S. ontarioensis (Ringius) Semple & Peirson, S. racemosa Greene, and S. randii (Porter) Britt.), one relatively rare species along the Pacific coast of California and Oregon (S. spathulata DC.), one narrowly distributed species in Mexico (S. simplex Kunth; Semple et al. 2016) and one widely distributed species in western North America from Alaska to New Mexico in the Rocky Mountains and east across Canada to the Lake Superior shores in Ontario and into northern Michigan (S. glutinosa Nutt.; Semple & Peirson 2013;Semple 2016). The ranges of all species are presented in Semple (2018, frequently updated). ...
... Humiles also includes five rare to very rare species in the Great Lakes Region and the northeastern USA and adjacent Canada (S. chlorolepis Fern., S. gillmanii (A. Gray) Steele, S. ontarioensis (Ringius) Semple & Peirson, S. racemosa Greene, and S. randii (Porter) Britt.), one relatively rare species along the Pacific coast of California and Oregon (S. spathulata DC.), one narrowly distributed species in Mexico (S. simplex Kunth; Semple et al. 2016) and one widely distributed species in western North America from Alaska to New Mexico in the Rocky Mountains and east across Canada to the Lake Superior shores in Ontario and into northern Michigan (S. glutinosa Nutt.; Semple & Peirson 2013;Semple 2016). The ranges of all species are presented in Semple (2018, frequently updated). ...
A new, apparently very rare species of Solidago subsect. Humiles is described from a previously unidentified collection made in June 1957 in South Carolina. Solidago austrocaroliniana Semple & J.B. Nelson, sp. nov., is compared to other species of the subsection native to the southeastern USA.
