Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas Author Linnaeus, Carolus text 1753 Laurentius Salvius Stockholm https://doi.org/10.5962/bhl.title.669 book 10.5281/zenodo.3931989 3931989 Polemonium dubium , spec. nov. 3. Polemonium foliis inferioribus hastatis, superioribus lanceolatis. Gron. virg. 142. Habitat in Virginia . Facies aliena a Polemoniis, genus mihi dubium.