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Literature References


A B C D E F G H I J K L M N O P R S T U V W Z

As new resources become available, this bibliography will be revised periodically. Last modified Jan. 15, 2014.

  • - Padgett, D.J., D.H. Les, G.E. Crow. 1998. Evidence for the hybrid origin of Nuphar Xrubrodisca (Nymphaeaceae). Am. J. Bot. 85(10): 1468-1476.

  • - Persson Hovmalm, H.A., N. Jeppsson, I.V. Bartish, and H. Nybom. 2004. RAPD analysis of diploid and tetraploid populations of Aronia points to different reproductive strategies within the genus. Hereditas 141: 301-312.

  • - Philbrick, C.T., and R.K. Jansen. 1991. Phylogenetic studies of North American Callitriche (Callitrichaceae) using chloroplast DNA restriction fragment analysis. Systematic Botany 16: 478-491.

  • - Polunin, N. 1959. Circumpolar arctic flora. Oxford: Clarendon Press.

  • - Porsild A.E., and W.J. Cody, 1980. Vascular plants of the continental Northwest Territories, Canada. Natl. Mus. Nat. Sci., Ottawa.

  • - Porsild, A.E. 1964. Illustrated flora of the Canadian Arctic Archipelago. 2nd edition. Natl. Mus. Can. Bull. No. 146.

  • - Pringle, J.S. 2010. Nomenclature of the thicket creeper, Parthenocissus inserta (Vitaceae). Michigan Botanist 49(3): 73-78.

  • - Pryer, K. M, H. Schnelder, A. R. Smith, R. Cranfill, P. G. Wolf, J. S. Hunt, & S. D. Sipes. 2001. Horsetails and ferns are a monophyletic group and the closest living relatives to seed plants. Nature. 409: 618-621.

  • - Pryer, K.M., E. Schuettpelz, P.G. Wolf, H. Schneider, A.R. Smith, and R. Cranfill. 2004. Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences. Am. J. Bot. 91 (10): 1582-1598.

  • - Puff, C. 1976. The Galium tridifum group (Galium Sect. Aparinoides, Rubiaceae). Can. J. Bot. 54: 1911-1925.

  • - Puff, C. 1977. The Galium obtusum group (Galium Sect. Aparinoides, Rubiaceae). Bull. Torrey Bot. Club 104: 202-208.

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