Troels Myndel Pedersen’s scientific contributions

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Publications (2)


Fig. 1. Eryngiunl megapotamicum. A, margen de hoja basal; B, flor vista dorsal; e y D, pétalos: vista lateral y ventral respectivamente; E, bráctea floral; F, bráctea involucra!. (A, Schinini & al. 19448; B-F, Schulz 1388). Del. Liliana GÓmez.
El Eryngium (“cardo”) gigante del Delta del Paraná y de la Mesopotamia argentina
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November 2010

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5 Citations

Bonplandia

Troels Myndel Pedersen

Un Eryngium gigante, espectacular por su tamaño y la abundancia donde se presenta, muy común a lo largo de la Mesopotamia argentina, el delta del Río Paraná, y la orilla sur del Río de la Plata, cuya identidad ha sido interpretada de diversas maneras, se describe como una nueva especie, Eryngium mesopotamicum Pedersen

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STUDIES IN SOUTH AMERICAN AMARANTHACEAE V Estudios en Sudamérica Amaranthaceae V

November 2010

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46 Reads

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3 Citations

Bonplandia

div>The nomenclature, taxonomy, and synonymy of various South American Amaranthaceae are discussed. Two new genera are described, Hebanthodes Pedersen with only one new species from Peru, H. peruviana Pedersen, and Lecosia Pedersen with two new species from NE Brazil, L. formicarum Pedersen and L. oppositifolia Pedersen. Seven new species, Alternanthera piptantha Pedersen, Gomphrena Hatschbachiana Pedersen, G. riparia Pedersen, Guilleminea chacoensis Pedersen, G. fragilis Pedersen, G. hirsuta Pedersen and Pfaffia argyrea Pedersen, one new subspecies, Alternanthera Kurtzii subsp. sclerosperma Pedersen, and three varieties, Alternanthera hirtula var. hirsuta Pedersen, Alternanthera hirtula varo nitens Pedersen and Pfaffia fruticulosa varo diffusa Pedersen are described. Three new combinations, Hebanthe eriantha (Poir.) Pedersen, Iresine diffusa forma Herbstii (Hook.) Pedersen, and Pedersenia Hassleriana (Chodat) Pedersen, are proposed. A key to the species of Guilleminea discussed in this paper and a key synthesizing the characters separating Hebanthodes from its immediate allies are provided. Se discute la nomenclatura, taxonomía y sinonimia de Amarantáceas Sudamericanas. Se describen dos nuevos géneros, Hebanthodes Pedersen, con una sola especie de Perú, H. peruviana Pedersen y Lecosia Pedersen, con dos especies del NE de Brasil, L. formicarum Pedersen y L. oppositifolia Pedersen. Además se describen siete especies nuevas, Alternanthera piptantha Pedersen, Gomphrena Hatschbachiana Pedersen, G. riparia Pedersen, Guilleminea chacoensis Pedersen, G. fragilis Pedersen, G. hirsuta Pedersen y Pfaffia argyrea Pedersen, una nueva subespecie, Alternanthera Kurtzii subsp. sclerosperma Pedersen y tres variedades, Alternanthera hirtula var. hirsuta Pedersen, A. hirtula var. nitens Pedersen y Pfaffia fruticulosa var. diffusa Pedersen. Se establecen tres nuevas combinaciones, Hebanthe eriantha (Poir.) Pedersen, Iresine diffusa forma Herbstii (Hook.) Pedersen y Pedersenia Hassleriana (Chodat) Pedersen. Se presenta una clave para las especies de Guilleminea tratadas y una clave que permite separar Hebanthodes de géneros afines. </div

Citations (1)


... data). Lastly, three other genera with suspected close affinities to Tidestromia were included in this study, each by their respective type species: Froelichia (16 spp.; McCauley 2004), Gossypianthus (2 spp.; Henrickson 1987), and Guilleminea (6 spp.; Pedersen 2000). ...

Reference:

Phylogeny of Tidestromia (Amaranthaceae, Gomphrenoideae) Based on Morphology
STUDIES IN SOUTH AMERICAN AMARANTHACEAE V Estudios en Sudamérica Amaranthaceae V
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  • November 2010

Bonplandia