Senecio expansus Wedd., Chlor. Andina 1: 107. 1856.
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https://dx.doi.org/10.3897/phytokeys.132.38534 |
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https://treatment.plazi.org/id/0AE8231A-ED59-5FC3-826B-7FCEA7392F17 |
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Senecio expansus Wedd., Chlor. Andina 1: 107. 1856. |
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2. Senecio expansus Wedd., Chlor. Andina 1: 107. 1856.
Senecio macrorrhizus Wedd., Chlor. Andina 1: 108. 1856. Type: Peru. Cusco: dept. de Cuzco, Oct 1839-Feb 1840, C. Gay 1870 (lectotype, designated here: P [P01816797]), syn. nov.
Type.
Bolivia. Potosí: montagnes des lagunas de Potosí, [without date], A. d’Orbigny 1418 (lectotype, designated by Cabrera (1966) as “typus”, pg. 21: P [P01816805]; isolectotypes: BR [BR00000552801], G [G00356020], K [K000497783]).
Discussion.
Senecio macrorrhizus Wedd. was described from Cusco (Peru) and distinguished from S. expansus Wedd. mainly by having a thicker, longer, and more sinuous rhizome, larger capitulum, and rosettes less spread out ( Weddell 1856). The mentioned differences fall within the variability encompassed by S. expansus , and here we synonymize them.
Gay’s specimen P01816797 perfectly matches the protologue information, and therefore, it is designated as the lectotype of the name S. macrorrhizus .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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