Application of morphometric study to discriminate Pteridium aquilinum (L.) Kuhn subsp. pinetorum (C. N. Page & R. R. Mill 1995) J. A. Thomson in Poland

Abstract

Pteridium aquilinum subsp. pinetorum is one of two morphologically distinct taxa of the genus Pteridium identified in Poland. In order to confirm their distinctively recognizable morphology, nine features defining each of these taxa were subjected to a morphometric analysis. These features, including taxonomic characters of vegetative structures, were measured or counted for their most comprehensive descriptions. The measurements were also expressed as ratios of two characters (length of the first and second pairs of leaflets) to prevent the size of fronds from influencing the results. Unique features of bracken, such as: frond and pinnae shape and orientation; basal pinna structure; ultimate segment of pinnae and pinnula shape and size; frond expansion sequencing; frond lamina texture, shape and pubescence were treated descriptively. Canonical discriminant analysis was employed for a morphometric study of quantitative characters. On their basis, two taxa – P. aquilinum subsp. aquilinum and P. a. subsp. pinetorum were determined.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • Der J. P., Thomson J. A. Stratford J. K. & Wolf P. G. 2009. Global chloroplast phylogeny and biogeography of bracken (Pteridium; Dennstaedtiaceae). Am. J. Bot. 96(5): 1041-1049.

  • Frank D. 2008. The unknown stays mostly unseen. Not note dindigenous taxa of the genera Pteridium and Urtica. Mitt. Florist. Kart. Sachsen-Anhalt (Halle) 13: 29-40.

  • Halarewicz A. & Koszelnik-Leszek A. 2007. Wpływ siedliska na rozwój i skład chemiczny orlicy pospolitej Pteridium aquilinum (L.) Kuhn. Roczn. Glebozn. LVIII (12): 24-32.

  • Harmaja H. 1990. Suomessa on kahdenlaista sananjalkaa. [Two races of bracken (Pteridium aquilinum) in Finland]. Lutukka 6: 15-18.

  • Gureyeva I. I. & Page C. N. 2005. Towards the problem of the bracken taxonomy in Siberia – Systematic notes on the materials of the P. N. Krylov Herbarium of Tomsk State University 95: 18-29 (Russian, with very short English summary).

  • Gureyeva I. I. & Page C. N. 2008a. The Genus Pteridium (Hypolepidaceae)in the Northern Eurasia. Bota-nicheskiy Zhurnal [Botanical Journal] 93(6): 915-934 (in Russian with English summary).

  • Gureyeva I. I. & Page C. N. 2008b. The fern genus Pteridium in a trans Euro-Siberian perspective – a morphological synthesis. In: S. C. Verma, S. P. Khullar & H. K. Cheema (eds.). Perspectives in Pteridophytes, pp. 243-254. Bishen Singh Mahendra Pal Singh, Dehradun, India.

  • Gureyeva I. I. & Page C. N. 2015. Taxonomical and morphological diversity of Pteridium in Northern Eurasia. Intern. Conferrence on Lycophyte & Fern research. Smithsonian Institution & United State Botanic Garden. ‘Next generation to pteridology’ Washington 1-5.06.2015. p. 10.

  • Karlsson T. 2000. Pteridium. In: Flora Nordica, vol. 1, pp. 43-47. Royal Swedish Academy of Sciences Stockholm.

  • Klekowski E. J. Jr. 1972. Evidence against genetic self-incompatibility in the homosporous fern Pteridium aquilinum. Evolution 26: 66-73.

  • Mirek Z., Piękoś-Mirkowa H., Zając A. & Zając M. 2002. Flowering plants and pteridophytes of Poland. A checklist. In: Z. Mirek (ed.). Biodiversity of Poland, 1, 442 pp. W. Szafer Institute of Botany, Polish Academy of Sciences, Kraków.

  • Page C. N. 1976. The taxonomy and phytogeography of bracken – a review. Bot. J. Linn. Soc. 73: 1-34.

  • Page C. N. 1986. The strategies of bracken as a permanent ecological opportunist. In: R. T. Smith & J. A. Taylor (eds.). Ecology, land use and control technology. Parthenon Publ. Carnforth. UK.

  • Page C. N. 1989. Three subspecies of bracken, Pteridium aquilinum(L.) Kuhn in Britain. Watsonia 17: 429-434.

  • Page C. N. 1997. The Ferns of Britain and Ireland, ed. 2. Cambridge University Press: Cambridge.

  • Page C. N. & Mill R. R. 1995a. Scottish bracken (Pteridium): new taxa and a new combination. Bot. J. Scotl. 47: 139-140.

  • Page C. N. & Mill R. R. 1995b. The taxa of Scottish bracken in a European perspective. Bot. J. Scotl. 47: 229-247.

  • Petřík P., Neuhäuslová Z. & Sádlo J. 2009. Pteridietum aquilini Jouanne et Chouard 1929. In: M. Chytrý (ed.). Vegetace České republiky, 2, Ruderální, plevelová, skalní a suťová vegetace (Vegetation of the Czech Republic), 2, Ruderal, weed, rock and scree vegetation), pp. 400-402. Academia, Praha (in Czech).

  • Rumsey F. J., Sheffield E. & Haufler C. H. 1991. A reassessment of Pteridium aquilinum (L.) Kuhn in Britain. Watsonia 18: 297-301.

  • Rutkowski L. 2004. Klucz do oznaczania roślin naczyniowych Polski niżowej. Wyd. II, popr. i unowocześnione, 814 pp. Wyd. Nauk. PWN, Warszawa.

  • Shorina N. I. & Perestronina O. N. 2000. Taxonomic studieson Russian bracken. I. Taxonomy of Pteridium in territories of European Russia, Crimea and Caucasus. In: J. A. Taylor & R. T. Smith (eds.). Brackenfern: Toxicity, Biology and Control. Manchester 1999. – IBG Spec. Publ. (Aberyswyth) 4: 48-51.

  • StatSoft 2003. https://www.statsoft.pl

  • Stefańska-Krzaczek E. 2013. Pteridoflora gospodarczych borów sosnowych na siedliskach świeżych w Borach Dolnośląskich. Acta Bot. Silesiaca 9: 121-134.

  • Thomson J. A. 2004. Towards a taxonomic revision of Pteridium (Dennstaedtiaceae). Telopea 10(4): 793-803.

  • Thomson J. A. 2008. Morphotype a conflicting taxonomies in Pteridium (Dennstaedtiaceae: Pteridophyta). Fern Gaz. 18(3): 101-109.

  • Thomson J. A., Mickel J. T. & Mehltreter K. 2004. Taxonomic status and relationship of bracken ferns (Pteridum: Dennstaedtiaceae) of Laurasian affinity in Central and North America. Bot. J. Linn. Soc. 157: 1-17.

  • Tikhomirov V. N. 2009. Morphological variability of Pteridium (Hypolepidaceae) in Belarus. Bielorusskij Gosudarstwiennyj Universitiet, Minsk.

  • Tryon R. M. 1941. A revision of the genus Pteridium. Rhodora 43: 1-31, 37-67.

  • Washeka O. V. & Bezsmertna O. O. 2012. Ferns Atlas of Ukrainian Flora. 160 pp. Kyiv (in Ukrainian).

  • Wolf P. G., Sheffleld E., Thomson J. A. & Sinclair R. B. 1995. Bracken taxa in Britain. A molecular analysis. In R. T. Smith & J. A. Taylor (eds.). Bracken. An environmental issue, pp. 16-20. University of Leeds, UK.

  • Wolf P. G., Rowe C. A., Kinosian S. P., Der J. P., Lockhart P. J., Sheperd L. D., McLeanchan P. A. & Thomson J. A. 2019. Worldwide relationships in the fern genus Pteridium (bracken) based on nuclear genome markers.Am. J. Bot. 106(10): 1365-1376.

  • Zenkteler E., Jędrzejczyk I & Melosik 2015. Pteridum aquilinum – czy w Polsce występują jego podgatunki? IV Warsztaty Sekcji Pteridologicznej PTB, “Rodzaj Pteridium w Polsce”. Poznań, 09.2015.

  • Zenkteler E., Nowak O., Jędrzejczyk I. & Melosik I. 2016. Discrimination between Pteridium aquilinum (L.) Kuhn and P. pinetorum C. N. Page & R. R. Mill. (Dennstaedtiaceae) based on morphometric analysis of Polish samples. Streszcz. referatów i plakatów 57. Zjazdu PTB, 23.06-3.07.2016. Lublin, p. 248.

  • Zhou S., Dong W., Chen X., Zhang X., Wen J. & Schneider H. 2014. How many species of bracken (Pteridium) are there? Assessing the Chinese brackens using molecular evidence. Taxon 63(3): 509-521. https://doi.org/10.12705/633.9

Journal + Issues

Search