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SIX NEW SPECIES AND TAXONOMIC REVISIONS IN MEXICAN GAUDICHAUDIA (MALPIGHIACEAE)

Steven L. Jessup
Madroño
Vol. 49, No. 4 (OCTOBER-DECEMBER 2002), pp. 237-255
Stable URL: http://www.jstor.org/stable/41425475
Page Count: 19
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
SIX NEW SPECIES AND TAXONOMIC REVISIONS IN MEXICAN GAUDICHAUDIA (MALPIGHIACEAE)
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Abstract

Six new species in the genus Gaudichaudia are described and sectional taxonomy in the genus is revised in accordance with findings from molecular analysis of chloroplast and nuclear genomes. Gaudichaudia cycloptera, G. chasei, and G. mcvaughii are removed from section Gaudichaudia and placed in section Cyclopterys. Gaudichaudia krusei and G. subverticillata are removed from section Gaudichaudia and placed in section Archaeopterys. Gaudichaudia hirtella, comb. nov. is placed in section Oligopterys to accommodate the finding that Aspicarpa, at least in part, is nested within Gaudichaudia. Three nothosections are named to accommodate new species described as amphiploids among sections. Gaudichaudia implexa is described as a new amphiploid species formed from lineages in section Tritomopterys and section Gaudichaudia (nothosection Tritomochaudia). Gaudichaudia symplecta and Gaudichaudia synoptera are described as two new amphiploid species formed from lineages in section Tritomopterys and section Cyclopterys (nothosection Cyclotomopterys). Gaudichaudia zygoptera and Gaudichaudia intermixteca are described as two new amphiploid species formed from lineages in section Tritomopterys and section Zygopterys (nothosection Zygotomopterys). Gaudichaudia andersonii is described as a new amphiploid species formed from lineages within section Cycloptera. Se describen seis especies nuevas en el género Gaudichaudia y se revisa la taxonomía seccional en el género de acuerdo con los hallazgos del análisis molecular del cloroplasto y de los genomas nucleares. Se quitan Gaudichaudia cycloptera, G. chasei y G. mcvaughii de la sección Gaudichaudia y se colocan en la sección Cyclopterys. Se quitan G. krusei y G. subverticillata de la sección Gaudichaudia y se colocan en la sección Archaeopterys. Se pone Gaudichaudia hirtella, comb. nov. en la sección Oligopterys para acomodar el hallazgo de que Aspicarpa por lo menos en parte, se anida dentro de Gaudichaudia. Se nombran tres nothosecciones para acomodar la nuevas especies descrita como anfiploide entre secciones. Se describe Gaudichaudia implexa como una nueva especie anfiploide formada de linajes en la sección Tritomopterys y la sección Gaudichaudia (nothosección Tritomochaudia). Se describen Gaudichaudia symplecta y Gaudichaudia synoptera como dos especies nuevas del anfiploide formada de linajes en la sección Tritomopterys y la sección Cyclopterys (nothosección Cyclotomopterys). Se describen Gaudichaudia zygoptera y Gaudichaudia intermixteca como dos especies nuevas del anfiploide formada de linajes en la sección Tritomopterys y la sección Zygopterys (nothosección Zygotomopterys). Se describe el Gaudichaudia andersonii como una especie nueva del anfiploide formado de linajes dentro de la sección Cycloptera.

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