taxonID	type	description	language	source
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	diagnosis	Haec species D. riedelii accedit, sed foliolo elliptico-lanceolato (nec lanceolato aut oblongo), petiolo 8 – 11 mm longo (non 2 – 3 mm longus), pedicello 7 – 9 mm longo (non 2 – 4 mm longo) et lomento oblongo 2 – 6 articulato (nec reniformi 1 – 2 articulato) praecipue differt.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	materials_examined	Type: — ARGENTINA. Corrientes: Arroyo Riachuelo, Ruta 12, Km 17, 2 December 2008, fl., fr., L. C. P. Lima & R. Vanni 444 (holotype HUEFS, isotypes CTES, K, NY, UEC)	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	description	Subshrubs with xylopodium; stem decumbent or erect, cylindrical, striate, glabrescent or puberulousuncinate; internodes 2.6 – 5.3 cm long; stipule 3 – 4 × 2 mm, ovate, apex caudate, margin entire, glabrescent, caducous, free from each other. Leaves trifoliolate; petiole (5 –) 8 – 11 mm long, striate, puberulous-uncinate; stipels 2 – 3 mm long, linear, apex acute, margin entire, glabrescent, persistent; petiolule 1 – 2 mm long, puberulous-uncinate; leaflets elliptic-lanceolate, base rounded, apex mucronate, glabrescent or puberulousuncinate on both surfaces, secondary venation brochidodromous, secondary and tertiary veins conspicuous on the adaxial surface, uncinate around the main vein on the abaxial surface, terminal leaflet 2.8 – 5.0 × 0.5 – 1.2 cm, lateral leaflets 2.1 – 4.1 × 0.6 – 0.8 cm. Inflorescence a laxly flowered terminal pseudoraceme, 18.2 – 33.0 cm long, puberulous-uncinate, 2 – 3 flowers per node; primary bracts 3 – 4 × 1 mm, ovate-lanceolate, tomentose, striate, 5 veined, caducous; secondary bracts ca. 3.0 × 0.5 mm, narrowly-lanceolate, tomentose, striate, 1 – 2 veined, caducous; pedicel 7 – 9 mm long, tomentose-uncinate. Flowers ca. 10 mm long.; calyx bilabiate, tube campanulate, 2.0 – 2.5 mm long, outer surface tomentose; upper lip almost entire, ca. 1 mm long, apex sub-acute; lower lip trifid, teeth ovate-lanceolate, ca. 3 mm long; petals purple, standard ca. 9.5 × 8.0 mm, obovate, apex obtuse, claw ca. 0.5 mm long, wing petals ca. 9 × 4 mm, obovate, apex obtuse, claw ca. 1 mm long, keel petals 7 – 8 × 3 mm, narrowly-obovate, apex obtuse, claw ca. 4 mm long; androecium pseudomonadelphous, ca. 10 mm long; ovary ca. 8 mm long, puberulous-tomentose. Loment 2.7 – 6.2 cm long, stipitate, stipite 2 – 3 mm long, isthmi excentric, articles 2 – 6, 11 – 15 × 7 – 9 mm, oblong, reticulate, puberulousuncinate. Seeds ca. 3.2 × 2.5 mm, broadly oblong, brown.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	distribution	Distribution and habitat: — Desmodium burkartii occurs in the Province of Corrientes, northeastern Argentina, in grasslands with palms (Butia spp.) on sandy soil.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	biology_ecology	Phenology: — Flowering and fruiting specimens were recorded from November to February.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	conservation	Conservation assessment: — According to the IUCN (2001) conservation criteria Desmodium burkartii can be considered as Critically Endangered (CR). It has a restricted distribution, occurring only on sandstone in grassland of northeastern Argentina, near the Riachuelo River.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	etymology	Etymology: — It is named in honor of Arturo Burkart, who left an impressive contribution to legume systematics in Argentina.	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	materials_examined	Additional specimens examined (paratypes): — ARGENTINA. Corrientes: Arroyo Riachuelo, y Ruta 12, 5 December 1976, fl., fr., C. Quarín 3513 (CTES, G). Conceição, Estância Santa Rosalia, 4 January 1955, fl., fr., T. M. Pedersen 3107 (BR, CTES, P, SI, US); Riachuelo, 3 November 1986, fl., fr., A. Charpin & U. Eskuche 2070 (G [2 sheets]); 12 October 1967, fl., fr., A. Krapovickas & C. L. Cristóbal 13560 (MBM); 10 January 1976, fl., A. Schinini & O. Ahumada 12389 (CTES, G [2 sheets]); 25 November 1978, fl., fr., M. S. Ferruci et al. 80 (CTES, K); without date, fl., R. M. Crovetto & A. Schinini 10240 (G); 17 December 1981, fl., fr., R. Vanni et al. 158 (CTES, G); 27 February 1985, fl., fr., R. Vanni 457 (CTES);	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
9246914FFFFFFFB7FF44B16A0089F4A4.taxon	discussion	The combination of the leaflets elliptic-lanceolate, flowers ca. 10 mm long and stipitate loment with 2 – 6 oblong articles allows easily distinguishing Desmodium burkartii from other Argentinean species. Although D. burkartii was treated as D. riedelii for more than 70 years (Burkart 1939, Vanni 2001), these species are not particularly alike except for the terminal pseudoracemose inflorescence, as can be seen in the comparison presented in the Table 1. Among the species of Desmodium in Argentina, D. burkartii is most similar to D. glabrum (Mill.) Hitchc. They share the same large loment with ca. 7 – 9 mm wide, but D. burkartii differs by presenting leaflets elliptic-lanceolate (× rhomboid in D. glabrum), flowers ca. 10 mm long (× ca. 3 mm long), loments with 2 – 6 oblong-articles (× 2 – 4 reniform or rhomboid articles).	en	Lima, Laura C. P., Vanni, Ricardo O., De Queiroz, Luciano P., Tozzi, Ana M. G. A. (2012): An overlooked new species of Desmodium (Fabaceae, Papilionoideae) from Argentina. Phytotaxa 40: 55-59, DOI: 10.11646/phytotaxa.40.1.7, URL: http://biotaxa.org/Phytotaxa/article/view/phytotaxa.40.1.7
