First report of Utah fragile fern (Cystopteris: Cystopteridaceae) from New Mexico, and new nomenclatural combinations in Cystopteris tenneseensis
DOI:
https://doi.org/10.17348/jbrit.v16.i1.1215Resumen
Two recently analyzed collections of Cystopteris from New Mexico represent the first records of Utah fragile fern for the state. Our morphological reexamination of this taxon reveals a single character (the thickness of lateral cell walls in rhizome and petiole base scales) that consistently distinguishes it from tetraploid Cystopteris tennesseensis. Therefore, we propose the new combination C. tennesseensis subsp. utahensis to accommodate these disjunct, tetraploid populations of the southwestern United States. A second new combination, C. tennesseensis subsp. laurentiana, is provided for morphologically similar hexaploids from the northeastern U.S. and southern Canada.
Citas
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ROTHFELS, C.J., A.K. JOHNSON, M.D. WINDHAM, & K.M. PRYER. 2014. Low-copy nuclear data confirm rampant allopolyploidy in the Cystopterida-ceae (Polypodiales). Taxon 63:1026–1036.
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WINDHAM, M.D. 1983. The ferns of Elden Mountain, Arizona. Amer. Fern J. 73:85–92.
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WINDHAM, M.D. & K.M. PRYER. Until we all have tricorders: A more user-friendly taxonomy of North American Cystopteris Bernh. (in prep.)
CLUTE, W.N. 1908. Rare forms of ferns–VII. A slender leaved Cystopteris. Fern Bull. 16:75–77.
EKRT, L., J. KOŠNAR, C.J. ROTHFELS, K. HANUŠOVÁ, O. HORNYCH, & T. URFUS. 2022. Cytogenetic, geographical, spore type and plastid haplotype data reveal cryptic patterns of species diversity in the cosmopolitan Cystopteris fragilis complex (Polypodiopsida: Cystopteridaceae). Bot, J. Linnean Soc. doi.org/10.1093/botlinnean/boab078
HANUŠOVÁ, K., M. ?ERTNER, T. URFUS, P. KOUTECKÝ, J. KOŠNAR, C.J. ROTHFELS, V. JAROLÍMOVÁ, J. PTÁ?EK, & L. EKRT. 2019. Widespread co-occurrence of multiple ploidy levels in fragile ferns (Cystopteris fragilis complex; Cystopteridaceae) probably stems from similar ecology of cytotypes, their efficient dispersal and inter-ploidy hybridization. Ann. Bot. 123:845–855.
HAUFLER C.H. 1985. Pteridophyte evolutionary biology: the electrophoretic approach. Proc. Roy. Soc. Edinburgh, B, Biol. Sci. 86:315–323.
HAUFLER, C.H. & M.D. WINDHAM. 1991. New species of North American Cystopteris and Polypodium, with comments on their reticulate relationships. Amer. Fern J. 81:7–23.
HAUFLER, C.H., R.C. MORAN, & M.D. WINDHAM. 1993. Cystopteris. In: Flora of North America Editorial Committee, eds. Flora of North America North of Mexico. Oxford University Press, New York, U.S.A. 2:263–270.
HAUFLER, C.H., M.D. WINDHAM, & T.A. RANKER. 1990. Biosystematic analysis of the Cystopteris tennesseensis complex. Ann. Missouri Bot. Gard. 77:314–329.
LOVIS, J. 1978. Evolutionary patterns and processes in ferns. Advances Bot. Res. 4:229–415.
LELLINGER, D.B. 1981. Notes on North American ferns. Amer. Fern J. 71:90–94.
PTERIDOPORTAL. 2022. https://www.pteridoportal.org/portal/index.php. Accessed on 19 Mar 2022.
ROTHFELS, C.J., M.D. WINDHAM, & K.M. PRYER. 2013. A plastid phylogeny of the cosmopolitan fern family Cytopteridaceae. Syst. Bot. 38:295–306.
ROTHFELS, C.J., A.K. JOHNSON, M.D. WINDHAM, & K.M. PRYER. 2014. Low-copy nuclear data confirm rampant allopolyploidy in the Cystopterida-ceae (Polypodiales). Taxon 63:1026–1036.
SERNEC DATA PORTAL. 2022. http//:sernecportal.org/index.php. Accessed on 19 Mar 2022.
WEATHERBY, C.A. 1935. A new variety of Cystopteris fragilis and some old ones. Rhodora 37:373–378.
WINDHAM, M.D. 1983. The ferns of Elden Mountain, Arizona. Amer. Fern J. 73:85–92.
WINDHAM, M.D. 2022. Ferns and lycophytes. In: S. O’Kane and K. Heil, eds. Flora of New Mexico. Missouri Botanical Garden Press, St. Louis, U.S.A. (in press).
WINDHAM, M.D. & K.M. PRYER. Until we all have tricorders: A more user-friendly taxonomy of North American Cystopteris Bernh. (in prep.)
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Publicado
2022-07-15
Cómo citar
Windham, M. D., & Pryer, K. M. (2022). First report of Utah fragile fern (Cystopteris: Cystopteridaceae) from New Mexico, and new nomenclatural combinations in Cystopteris tenneseensis. Journal of the Botanical Research Institute of Texas, 16(1), 1–7. https://doi.org/10.17348/jbrit.v16.i1.1215
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