Struthanthus (Loranthaceae) variation in Venezuela: a numerical approach
DOI :
https://doi.org/10.17348/jbrit.v11.i2.1077Mots-clés :
Loranthaceae, Struthanthus, morphometric, numerical analyses, Venezuelan floraRésumé
Struthanthus Mart. is a large genus in the Loranthaceae occurring in the New World Tropics. Although 12 species are currently recognized in Venezuela, many herbarium specimens are difficult to positively identify because of the ambiguity of some characters that are used to distinguish species. A multivariate analysis of 144 herbarium specimens based on 17 characters recognized the following 5 groups: S. corymbifer Rizzini, S. gracilis (Gleason) Steyerm. & Maguire, S. phillyreoides (Kunth) Blume, S. syringifolius Mart. and S. terniflorus (Klotzsch) Eichler, plus the discrete S. martianus Dettke & Waechter. A key and descriptions for all species recognized in this analysis for Struthanthus in Venezuela are provided.
Références
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Belbin, L. 2009a. PATN analysis package, version 3.12. Copyright 2001–2009. Blatant Fabrications, Pty Ltd. Australia.
Belbin, L. 2009b. PATN analysis package. Help topics. Blatant Fabrications, Pty Ltd. Australia.
Crisp, M.D. & P.H. Weston. 1993. 1993. Geographic and ontogenetic variation in morphology of Australian Waratahs (Telopea: Proteaceae). Syst. Biol. 42(1):49–76.
Dettke, G.A. & J.L. Waechter. 2012. Struthanthus martianus, a replacement name for the illegitimate Struthanthus vulgaris Mart. ex Eichler (Loranthaceae). Phytotaxa 57:6–9. doi:10.11646/phytotaxa.57.1.2
Gower, J.C. 1971. A general coefficient of similarity and some of its properties. Biometrics 27:857–871. doi:10.2307/2528823
Kazandjián, A. 2011. A morphometric analysis of Struthanthus phillyreoides and S. dichotrianthus (Loranthaceae) suggests these represent one single variable species. Bull. Torrey Bot. Club 138(1):1–15.
Kuijt, J. 2001. Loranthaceae. In: J. A. Steyermark, P. E. Berry, K. Yatskievyceh, & B. K. Holst, eds. Flora of the Venezuelan Guayana: Liliaceae-Myrsinaceae, Volume 6. Missouri Botanic Garden, St. Louis, Missouri, U.S.A. Pp. 37–59.
Kuijt, J. 2008. Loranthaceae. In: O. Hokche, P.E. Berry, & O. Huber, eds. Nuevo catálogo de la flora vascular de Venezuela. Pp. 444–448.
Kuijt, J. 2012. Reinstatement and expansion of the genus Peristethium (Loranthaceae). Ann. Missouri Bot. Gard. 98(4):542–577.
Kuijt, J. 2013. A brief taxonomic history of neotropical mistletoe genera, with a key to the genera. Blumea 58:263–266. doi:10.3767/000651913X676664
Kuijt, R. & B. Hansen. 2015. Santales, Balonopholares: Loranthaceae. In: K. Kubitzki, ed. Flowering plants. edicots. Volume XII. Pp. 73–121.
Martius, K.S. 1830. Systema vegetabilium: secundum classes, ordines, genera, species. Cum characteribus differentiis et synonymis. Flora 13(1):105.
Radford, A.E., W.C. Dickinson, J.R. Masey, & C.R. Bell. 1974. Vascular plant systematics. Harper & Row, Publishers, New York, New York, U.S.A.
Rizzini, C.T. 1975. Loranthaceae novae. Rev. Facultad Agron. Maracay 8(3):83–109.
Rizzini, C.T. 1976a. Loranthaceae. Bol. Soc. Venez. Ci. Nat. 22:328.
Rizzini, C.T. 1976b. Loranthaceae Austro Americanae Novae. Rodriguésia 41:7–35.
Rizzini, C.T. 1982. Loranthaceae. In F.Z. de Luces & J.A. Steyermark, eds. Flora de Venezuela 4(2):7–316.
Rizzini, C.T. 1985. New or less known Loranthaceae from Brazil and Venezuela. Ernstia 32:1–16.
Rohlf, F.J. 1998. tpsDig, digitize landmarks and outlines, version 2.0. Department of Ecology and Evolution, State University of New York at Stony Brook, New York, U.S.A. http://life.bio.sunysb.edu/ morph/morphmet/tpsdig2w32.exe. Accessed 17 Jul 2009.
Thiele, K. & P.Y. Ladiges. 1994. The Banksia integriflora L.f. species complex (Proteaceae). Australian Syst. Bot. 7:393–408. doi:10.1071/SB9940393
Thiers, B. 2016. Index Herbariorum: A global directory of public herbaria and associated staff. [continuously updated.] New York Botanical garden’s Virtual Herbarium. http://sweetgum.nybg.org/science/ih/.
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Publié-e
2017-11-29
Comment citer
Kazandjián, A. . (2017). Struthanthus (Loranthaceae) variation in Venezuela: a numerical approach. Journal of the Botanical Research Institute of Texas, 11(2), 391–407. https://doi.org/10.17348/jbrit.v11.i2.1077
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SYSTEMATICS
