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22 December 2004 The genus Isostigma (Asteraceae, Heliantheae) in Paraguay, with a key to the species of the genus
Guadalupe Peter
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Abstract

Peter, G.: The genus Isostigma (Asteraceae, Heliantheae) in Paraguay, with a key to the species of the genus. — Willdenowia 34: 529–537. — ISSN 0511-9618; © 2004 BGBM Berlin-Dahlem.

The genus Isostigma, which is restricted in its distribution to eastern South America, ranging from Brazil to N Argentina, is revised for Paraguay and eight species are recognized to occur. I. herzogii is reported for the first time from this country (Dept. of Boquerón) and the presence of I. hoffmannii is confirmed (Depts of Boquerón and Chaco); both species are described and illustrated and their distribution is mapped. The other species in Paraguay are I. acaule, I. crithmifolium, I. dissitifolium, I. peucedanifolium, I. riedelii and I. speciosum. A key to all 13 species of Isostigma is provided.

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References

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I. Basualdo & N. Soria 2002: Cien especies del cerrado en Paraguay. — San Lorenzo & St Louis. Google Scholar

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E. Hassler 1909: Nachträge zu Siphonogamae novae bolivienses. — Repert. Spec. Nov. Regni Veg. 7: 358–359. Google Scholar

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G. Peter & L. Katinas 2003: A new type of Kranz anatomy in Asteraceae. — Austral. J. Bot. 51: 217–226. [  CrossRefGoogle Scholar

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A. A. Sáenz 1999: Isostigma. — In: F. O. Zuloaga & O. Morrone (ed.), Catálogo de las plantas vasculares de la Argentina II. — Monogr. Syst. Bot. Missouri Bot. Gard. 74: 225. Google Scholar

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E. E. Sherff 1926: Revision of the genus Isostigma Less. — Bot. Gaz. 81: 241–257. [  CrossRefGoogle Scholar
© 2004 BGBM Berlin-Dahlem.
Guadalupe Peter "The genus Isostigma (Asteraceae, Heliantheae) in Paraguay, with a key to the species of the genus," Willdenowia 34(2), 529-537, (22 December 2004). https://doi.org/10.3372/wi.34.34216
Published: 22 December 2004
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