Vickianthus, a new genus of the Vernonieae (Compositae) from Mexico
DOI:
https://doi.org/10.17348/jbrit.v17.i1.1291Schlagworte:
Vernonia, Vernonanthura, Vernoniinae, Mexico, anthers, resin ductsAbstract
The morphologically diverse and globally distributed tribe Vernonieae (Compositae) has had a long taxonomic history whereby the majority of its taxa ended up being put into its “core” genus, Vernonia Schreb. Recent phylogenetic studies using DNA sequence data are only now beginning to tease apart this complicated “evil tribe” and provide a better understanding of the underlying morphological relationships within. With strong support from a recent molecular phylogenetic study of the Vernonieae across its entire geographical range, ten Mexican species of Vernonia and Vernonanthura are examined in this paper and placed in a new genus, Vickianthus.
Literaturhinweise
BENTHAM, G. 1873. Compositae. In: G. Bentham & J.D. Hooker, eds. Genera Plantarum. Reeve, London, U.K. 2(1):163–533.
CASSINI, H. 1819. Suite du sixième mémoire sur la famille des Synanthérées, contenant les caractères des tribus. J. Phys. Chim. Hist. Nat. Arts. 88:189–204.
FUNK, V.A., R.J. BAYER, S. KEELEY, R. CHAN, L. WATSON, B. GEMEINHOLZER, E. SCHILLING, J.L. PANERO, B.G.BALDWIN, N. GARCIA-JACAS, A. SUSANNA, & R.K. JANSEN. 2005. Everywhere but Antarctica: Using a supertree to understand the diversity and distribution of the Compositae. Biol. Skr. 55:343–374.
GLEASON, H.A. 1906. A revision of the North American Vernonieae. Bull. New York Bot. Gard. 4:144–243.
HUELSENBECK, J.P. & F. RONQUIST. 2001. MRBAYES: Bayesian inference of phylogenetic trees. Bioinformatics 17(8):754–755.
KATOH, S. & D.M. STANDLEY. 2013. MAFFT multiple sequence alignment software version 7: Improvements in performance and usability. Molec. Bio. Evol. 30(4):772–780.
KEELEY, S.C. & R.K. JANSEN. 1994. Chloroplast DNA restriction site variation in the Vernonieae (Asteraceae), an initial appraisal of the relationship of New and Old World taxa and the monophyly of Vernonia. Pl. Syst. Evol. 193:249–265.
KEELEY, S.C., Z.H. FORSMAN, & R. CHAN. 2007. A phylogeny of the “evil tribe” (Vernonieae: Compositae) reveals Old/New World long distance dispersal: Support from separate and combined congruent datasets (trnL–F, ndhF, ITS). Molec. Phylogen. Evol. 44(1):89–103.
KEELEY, S.C. & H. ROBINSON. 2009. Vernonieae. In: V.A. Funk, A. Susanna, T.F. Stuessy, & R.J. Bayer, eds. Systematics, Evolution, and Biogeography of the Compositae. International Association for Plant Taxonomy, Vienna. Pp. 439–469.
KEELEY, S.C., J.T. CANTLEY, & T.J. GALLAHER. 2021. The ‘evil tribe’ spreads across the land: A dated molecular phylogeny provides insight into dispersal, expansion, and biogeographical relationships within one of the largest tribes of the sunflower family (Vernonieae: Compositae). Amer. J. Bot. 108(3):505–519.
LOEUILLE, B., S.C. KEELEY, & J.R. PIRANI. 2015. Systematics and evolution of syncephaly in American Vernonieae (Asteraceae) with emphasis on the Brazilian Subtribe Lychnophorinae. Syst. Bot. 40(1):286–298.
MANDEL, J.R., R.B. DIKOW, C.M. SINISCALCHI, R. THAPA, L.E. WATSON, & V.A. FUNK. 2019. A fully resolved backbone phylogeny reveals numerous dispersals and explosive diversifications throughout the history of Asteraceae. Proc. Natl. Acad. Sci. 116(28):14083–14088.
MINH, B.Q., H.A. SCHMIDT, O. CHERNOMOR, D. SCHREMPF, M.D. WOODHAMS, A. VAN HAESELER, & R. LANFEAR. 2020. IQ-TREE 2: New models and efficient methods for phylogenetic inference in the genomic era. Molec. Biol. Evol. 37(5):1530–1534.
PRUSKI, J.F. 2016. Compositae of Central America: IV. The genus Eremosis (Vernonieae), non-glandular trichomes and pericarp crystals. Phytoneuron 50:1–41.
REDONDA-MARTÍNEZ, R., J.L. VILLASEÑOR, & A.CAMPOS-VILLANUEVA. 2016. A new species of Vernonia (Asteraceae, Vernonieae) from the state of Oaxaca, Mexico. Phytotaxa 282(3):211–217.
REDONDA-MARTÍNEZ, R. & M. MORA-JARVIO. 2017. Vernonia occulta (Asteraceae: Vernonieae: Vernoniinae) a new species from the state of Oaxaca, Mexico. Syst. Bot. 42(2):378–383.
ROBINSON, H. 1988. Studies in the Lepidaploa complex (Vernonieae: Asteraceae) IV. The new genus, Lessingianthus. Proc. Biol. Soc. Washington 101(4):929–951.
ROBINSON, H. 1992. A new genus Vernonanthura (Vernonieae, Asteraceae). Phytologia 73(2):65–76.
ROBINSON, H. 1999a. Revisions in paleotropical Vernonieae (Asteraceae). Proc. Biol. Soc. Washington 112(1):220–247.
ROBINSON, H. 1999b. Generic and subtribal classification of American Vernonieae. Smithsonian Contr. Bot. 89:i–iv, 1–116.
ROBINSON, H. & S. YANKOWSKI. 2016. The taxonomic significance of ducts in the corolla lobes of Vernonia (Vernonieae: Asteraceae). PhytoKeys 58:1–7.
ROBINSON, H. & V.A. FUNK. 2018. Vernonia subgenus Austrovernonia, a new subgenus from South America (Compositae, Vernonieae, Vernoniinae). PhytoKeys 110:123–124.
RONQUIST, F. & J.P. HUELSENBECK. 2003. MrBayes 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19(12):1572–1574.
SINISCALCHI, C.M., L. BENOIT, V.A. FUNK, J.R. MANDEL, & J.R. PIRANI. 2019. Phylogenomics yields new insight into relationships within Vernonieae (Asteraceae). Frontiers Pl. Sci. 10:1224.
TURNER, B.L. 2007. The Comps of Mexico: A systematic account of the family Asteraceae. Chapter 8. Liabeae and Vernonieae. Phytologia Mem. 12:1–144.
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