Polemonium elusum (Polemoniaceae), a New Species from East Central Idaho, U.S.A.

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Botanical inventory of the Salmon-Challis National Forest has led to the discovery of a new species, Polemonium elusum. It may be distinguished from congeners by calyx lobes that are green to purplish with whitish, translucent membranes, oblong to spathulate, 0.4-0.7 mm wide connecting them. The presence of the membrane is unique to the genus. It is restricted to nine locations near the Salmon River between Salmon and Challis. In addition to the distinguishing morphometric features, DNA sequence analysis of the ITS1, 5.8s, and ITS2 nuclear ribosomal DNA supports Polemonium elusum as a distinct species.

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Reference Code: A12IRW01IDUS <br>

Full Citation: Irwin, J.J., R. Stubbs, and R.L. Hartman. 2012. Polemonium elusum (Polemoniaceae), a New Species from East Central Idaho, U.S.A. Journal of the Botanical Research Institute of Texas. 6(2): 331-338 <br>

Location: ELECTRONIC FILE - BOTANY: PLANT SPECIES: { Polemonium elusum }