BioStor
 | XLI.—A Catalogue of Sicilian Plants; with some remarks on the Geography, Geology, and Vegetation of Sicily John Hogg (1842) Annals And Magazine of Natural History 10: 287-335 |
 | LIV.—Botanical excursion in Lower Styria in 1842 R C Alexander (1846) Annals And Magazine of Natural History 17: 457-466 |
 | Botanical Society of Edinburgh (1849) Annals And Magazine of Natural History 3: 424-427 |
 | Botanical Society of Edinburgh (1853) Annals And Magazine of Natural History 11: 325-329 |
 | The genera of Rosaceae in the southeastern United States [cont.] K R Robertson (1974) Journal of the Arnold Arboretum 55: 344-401 |