taxonID	type	description	language	source
941E87DDFFCB2D12FC87FACDFBD4CF47.taxon	description	Figs. 2 a-c; 3 a-b Trees, 9 – 15 m tall; young branches lenticellate, glabrous or glabrescent. Stipules 6 – 8 mm long, oblanceolate, caducous. Leaves pinnate; petiole 0.7 – 1.6 cm long, subcylindrical to marginate, 0 – 0.4 mm wide; rachis 4 – 9.5 cm long, marginate just below the leaflet pairs, 0.5 – 3 mm wide; nectaries sessile, patelliform, circular; leaflets in (2 –) 3 pairs; terminal leaflet pair 9 – 19.5 × 3.6 – 8.5 cm, narrowly elliptic, base asymmetric, apex shortly cuspidate; basal leaflet pair 4.8 – 12 × 2.2 – 5.5 cm, elliptic, ovate, rarely lanceolate, base asymmetric, apex shortly cuspidate; adaxial and abaxial surfaces glabrous. Inflorescences spiciform, axillary, 1 – 5; peduncle 1 – 2 cm long; rachis 2 – 3.5 cm long. Bracts 0.5 – 1 mm long, obtrullate, caducous. Flowers sessile to subsessile, 0 – 0.2 mm long; calyx tubular, sparsely short-sericeous, adpressed, tube 0.8 – 1.2 mm long, lobes 0.2 – 0.4 mm long, acute, irregular; corolla infundibuliform, glabrous to glabrescent, tube 3.6 – 4.2 mm long, lobes 0.5 – 1 mm long, acuminate, irregular; androecium tube 5 – 9 mm long, exerted, stamens 28 – 35, 4 – 7 mm long, white; nectary disc absent; gynoecium 1 - carpellate; ovary 1.2 – 1.4 mm long, glabrous, style 9.1 – 15 mm long, stigma cylindrical. Fruit a nucoid legume, 12 – 20 × 2 – 3.2 cm, greenish, narrowly elliptic, glabrous, margins evident, surfaces open, transversally striate; seeds with abundant sarcotesta.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCB2D12FC87FACDFBD4CF47.taxon	materials_examined	Examined material: Alta Floresta, Parque Zoobotânico Leopoldo Linhares Fernandes, 09 ° 51 ’ 45 ” S, 56 ° 04 ’ 24 ” W, 20. VIII. 2022, fr., J. M. Fernandes 1902 (HERBAM); 15. I. 2023, fr., J. M. Fernandes 1939 (HERBAM); 28. IV. 2023, fl., J. M. Fernandes 1950 (HERBAM); 8. V. 2023, fl., J. M. Fernandes 1953 (HERBAM). Cotriguaçu, Fazenda São Nicolau, 09 ° 51 ’ 55 ” S, 58 ° 15 ’ 59 ” W, 24. XI. 2015, fr., J. P. Santos et al. 382 (HERBAM). ParanaÍta, 09 ° 22 ’ 59 ” S, 56 ° 44 ’ 56 ” W, 19. IV. 2012, fl., C. R. A. Soares et al. 6050 (HERBAM).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCB2D12FC87FACDFBD4CF47.taxon	distribution	This species has a distribution restricted to Amazonian forest and occurs from Colombia to the Guianas, as well as in Brazil, Ecuador, Peru, and Bolivia (Pennington 1997). In Brazil, it had only been recorded in the North Region, in the sates of Acre, Amazonas, Amapá, Pará, Rondônia, and Roraima (Pennington 1997; Garcia & Bonadeu 2024). The present work increases its distribution to the state of Mato Grosso, in the Central-West Region, in the municipalities of Alta Floresta, Cotriguaçu and ParanaÍta, in ombrophilous, várzia, gallery, and riparian forests (Fig. 4).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCB2D12FC87FACDFBD4CF47.taxon	discussion	Inga bourgonii is similar to I. pezizifera Bentham (1845: 587) but differs by the shorter petiole, winged leaf rachis, smaller foliar nectaries, and sessile flowers (Pennington 1997).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCC2D11FC87FDF6FE8EC841.taxon	description	Trees, ca. 7 m tall; young branches lenticellate, glabrescent. Stipules 15 – 18 mm long, narrowly elliptic, caducous. Leaves pinnate, petiole 5.5 – 6.6 cm long, cylindrical; rachis 10.5 – 12 cm long, subcylindrical; nectaries sessile, patelliform, circular; leaflets in 3 pairs; terminal leaflet pair 17.4 – 23 × 9.5 – 11 cm, elliptic to ovate-elliptic, base attenuate, apex shortly caudate basal leaflet pair 13 – 14.7 × 5.7 – 7.3 cm, elliptic to ovate, base attenuate, apex shortly caudate; adaxial and abaxial surfaces with glandular trichomes. Inflorescences capituliform, globose, axillary, 2 – 3; peduncle 5.5 – 6.7 cm long; rachis 2 – 3 mm long. Bracts 6 – 7 mm long, narrowly obtrullate, caducous. Flowers pedicellate, 1 – 1.8 mm long; calyx infundibuliform, tube 4.5 – 6.5 mm long, glabrous, laterally torn, lobes 0.8 – 1 mm long, acute to acuminate, irregular, pubescent; corolla infundibuliform, tube 6 – 6.8 mm long, lobes 1 – 1.3 mm long, acuminate, regular, pubescent; androecium tube 6.5 – 8.5 mm long, included, stamens 56 – 60, 5.5 – 7 mm long, white; nectary disc absent; gynoecium 1 - carpellate; ovary 1.6 – 2 mm long, trichomes sparse at the apex, style 14.7 – 15.5 mm long, stigma cylindric. Fruits not seen.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCC2D11FC87FDF6FE8EC841.taxon	materials_examined	Examined material: Itaúba, resgate da flora da Usina Hidrelétrica ColÍder, lote F próximo a balsa, 19. V. 2016, fl., M. E. Engels & A. S. Bezerra 4483 (HERBAM; photography MBM 413393!).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCC2D11FC87FDF6FE8EC841.taxon	distribution	This species occurs in Amazonia in Bolivia, Brazil, Colombia, Ecuador, French Guiana and Peru, always below 500 meters elevation (Pennington 1997). In Brazil, it is only cited for states in the North Region (Acre, Amazonas, Amapá, Pará and Rondônia) in riparian, gallery, terra firme, and várzia forests (Pennington 1997; Garcia & Bonadeu 2024). Here, we increase the distribution to Mato Grosso, in the municipality of Itaúba, where it is found in areas of the Planalto dos Parecis in transition vegetation between Amazonia and the Cerrado (Fig. 4).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCC2D11FC87FDF6FE8EC841.taxon	discussion	Inga cinnamomea is a well-defined species morphologically; it is not similar to any other species in Brazil. According to Pennington (1997), is similar to I. jinicuil G. Don (1832: 391) that occurs in Mexico, Central America and Ecuador, but I. cinnamomea differs by having a petiole 2.9 – 7 cm long, leaflets with 8 – 13 veins, and a calyx tube 2.75 – 5 mm long.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D11FF20FAFFFC43C821.taxon	description	Trees, 15 – 17 m tall; young branches lenticellate, glabrescent. Stipules 2 – 3 mm long, ovate, caducous. Leaves pinnate; petiole 0.8 – 1.5 cm long, subcylindrical, marginate, 0.2 – 0.5 mm wide; rachis 6.2 – 10 cm long, marginate below the leaflets, 0.4 – 1 mm wide; nectaries sessile, cupuliform or patelliform, circular; leaflets in 4 – 5 pairs; terminal leaflet pair 7.2 – 11.6 × 2.4 – 4.4 cm, elliptic, rarely ovate, base cordate, apex acuminate; basal leaflet pair 3.3 – 5.3 × 1.8 – 3.8 cm, ovate, base rounded to cordate, apex acuminate; adaxial and abaxial surfaces glabrescent. Inflorescences racemose, congested, axillary, 2 – 4; peduncle 1.8 – 2.5 cm long; rachis 1 – 1.4 cm long. Bracts 6 – 8 mm long, narrowly spatulate, caducous. Flowers pedicellate, 0.6 – 1 mm long; calyx infundibuliform, sericeous, tube 1 – 1.8 mm long, lobes 0.2 – 0.4 mm long, cuspidate, irregular; corolla infundibuliform, sericeous, tube 3.5 – 4.5 mm long, lobes 1 – 1.2 mm long, acuminate, regular; androecium tube 4 – 6 mm long, included to slightly exerted, stamens 38 – 50, 5.5 – 7 mm long, white; nectary disc absent; gynoecium 1 - carpellate, ovary 1.4 – 1.5 mm long, glabrous, style 10 mm long, stigma cylindrical. Fruit a nucoid legume, 5 – 18 × 2.3 – 2.6 cm, narrowly elliptic-oblong to elliptic, glabrescent, margins evident, surfaces open, brilliant, transversally striate; seeds not seen.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D11FF20FAFFFC43C821.taxon	materials_examined	Examined material: Alta Floresta, margem do Rio São Manoel, porto de areia, 09 ° 38 ’ 23 ” S, 56 ° 00 ’ 41 ” W, 24. XII. 2023, fr., J. M. Fernandes 2052 (HERBAM). Novo Mundo, Reserva Particular do Patrimônio Natural (RPPN) Cristalino, margem do Rio Cristalino, 2. XI. 2023, fr., J. M. Fernandes et al. 2042 (HERBAM). ColÍder, canteiro de obras da Usina Hidrelétrica ColÍder, 10 ° 58 ’ 47 ” S, 55 ° 45 ’ 42 ” W, 7. IV. 2011, fr., C. R. A. Soares et al. 3290 (HERBAM); fl., C. R. A. Soares et al. 1329 (HERBAM).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D11FF20FAFFFC43C821.taxon	distribution	This species is restricted to Brazil and Peru (Pennington 1997). In Brazil, it was only known to occur in igapó forests in the state of Amazonas (Pennington 1997; Garcia & Bonadeu 2024). We increase its distribution to Mato Grosso where is occurs in the municipalities of Alta Floresta, Novo Mundo and ColÍder in areas of várzea, riparian and gallery forests on the margins of the Cristalino, São Manoel, and Teles Pires rivers (Fig. 4).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D11FF20FAFFFC43C821.taxon	discussion	Inga duckei is morphologically similar to I. alba (Swartz 1788: 85) Willdenow (1806: 1013) and I. pezizifera (Pennington 1997). It differs from I. alba by the non-alate leaf rachis, leaflet shape, longer peduncles, pedicellate flowers, pubescence, and wider fruit; it differs from I. pezizifera by the smaller leaf nectaries, smaller leaflets with a cordate base, and shorter flower rachis (Pennington 1997). According to the same author, the ecology of I. duckei also differs. It is restricted to inundated forest, while I. alba and I. pezizifera occur in terra firme forest.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D10FC87FADFFDD8CB63.taxon	description	Trees, 5 – 20 m tall; young branches cylindrical to subcylindrical, leticellate, puberulent and short-sericeous. Stipules 2.5 – 3.7 mm long, lanceolate to oblanceolate, puberulent, caducous. Leaves pinnate; petiole 1.6 – 4 cm long, cylindrical; rachis (0 –) 3.5 – 6 (– 10) cm long, cylindrical; nectaries sessile, discoid, circular; leaflets in (1 –) 2 (– 3) pairs; terminal leaflet pair 11.5 – 19 × 4.8 – 10.2 cm, oblanceolate, rarely elliptic, base acute, apex shortly cuspidate; basal leaflet pair 7 – 14 × 3 – 7.2 cm, ovate to elliptic, base asymmetric, apex shortly cuspidate; adaxial surface glabrous, abaxial surface with sparse glandular trichomes. Inflorescences umbelliform, globose, axillary, 1 – 2, or grouped; peduncle 2.6 – 6 cm long; rachis 3 – 4 mm long. Bracts 0.8 – 1 × 0.2 – 1.4 mm, ovate to flabelliform, caducous. Flowers pedicellate, pedicel 0.6 – 1.3 mm long; calyx tubuliform, (0.8 –) 1 – 2 mm long, lobes 0.1 – 0.3 mm long, irregular, puberulous at the apex; corolla infundibuliform, whitish, glabrous, tube 4.5 – 6.3 mm long, lobes 1 mm long; androecium tube 5 – 7.8 mm long, exerted, stamens 30 – 52, 10 – 14 mm long, whitish; nectary disc absent; gynoecium 1 - carpellate; ovary 1.7 – 2 mm long, glabrous, style 7.8 – 12.5 mm long, stigma cylindrical. Fruit a nucoid legume, 12 – 36 × 2.8 – 4.6 cm, linear, rarely narrowly oblong, turgid when mature, margins not expanded, transversal veins evident, irregular, glabrous; seeds 7 – 14, sarcotesta abundant.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D10FC87FADFFDD8CB63.taxon	materials_examined	Examined material: Alta Floresta, Assentamento Jacamim, propriedade do Sr. Pedro, 11. VII. 2018, fr., S. E. X. F Souza 966 (HERBAM); sÍtio do Sr. Braz da Silva, fl., S. E. X. F. Souza 1036 (HERBAM); casa de sementes Ouro Verde, comunidade Estrela do Sul, 9. VIII. 2014, fr., L. Rodrigues 567 (HERBAM). ColÍder, resgate de flora da Usina Hidrelétrica ColÍder, lote B de supressão, 4. VIII. 2015, fr., L. F Sardelli 706 (HERBAM); Casa de Sementes ColÍder, 10 ° 30 ’ 45 ” S, 55 ° 27 ’ 16 ” W, 20. X. 2015, fr., L. Rodrigues et al. 951 (HERBAM). Itaúba, resgate de flora da Usina Hidrelétrica ColÍder, lote F, 11. VI. 2015, fl., R. C. Santos et al. 24 (HERBAM). Nova Canaã do Norte, resgate de flora da Usina Hidrelétrica ColÍder, lote A de supressão, 26. IX. 2014, fr., M. A. S. Zanin et al. (HERBAM 14326); casa de sementes Veraneio, 10 ° 46 ’ 31 ” S, 55 ° 43 ’ 08 ” W, 28. VII. 2014, fr., L. Rodrigues et al. 539 (HERBAM). ParanaÍta, rodovia MT- 208, próximo ao restaurante do Baiano, 09 ° 55 ’ 07 ” S, 56 ° 35 ’ 25 ” W, 14. VIII. 2018, fr., J. A. M. Melo 261 (HERBAM).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D10FC87FADFFDD8CB63.taxon	distribution	This species is restricted to Brazil, Guyana, Fr e nc h Gu i a n a, Su r i n a me, a nd Ve ne z uel a (Pennington 1997). Here, we increase its distribution to Mato Grosso where it occurs in the municipalities of Alta Floresta, ColÍder, Itaúba, Nova Canaã do Norte and ParanaÍta in areas of pasture, Planalto dos Parecis forest, and secondary forest (Fig. 4).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCF2D10FC87FADFFDD8CB63.taxon	discussion	Inga huberi has a flower structure similar to that of I. glomeriflora Ducke (1922: 50) but differs by the leaves with 2 pairs of leaflets, generally grouped inflorescence, and woody fruits with verrucose transverse veins, while I. glomeriflora has leaves with 3 – 4 pairs of leaflets, inflorescences grouped in small protuberances, and fruits with smooth surfaces (Pennington 1997).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCE2D1FFF20F992FEF3CA46.taxon	description	Sc a ndent sh r ubs, 2 – 3. 5 m t a l l; you ng branches cylindrical, leticellate, puberulent to uncinate. Stipules 0.5 – 2.3 mm long, triangular to narrowly triangular, persistent. Leaves bipinnate; petiole 0.6 – 2 cm long, cylindric; rachis 9.5 – 19 cm long, cylindrical; leaf nectary present on petiole and between nearly all of the leaflet pairs, sessile, patelliform, circular to semicircular; pinna pairs 7 – 13; leaflets in 18 – 25 pairs per pinna, congested, 10 – 13.3 × 0.3 – 0.48 cm, rhombic-lanceolate, base asymmetric, apex obtuse, mucro present, adaxial and abaxial surfaces glabrous, margins glabrous to glabrescent. Inflorescences capituliform, globose, axillary, 1 – 3; peduncle 1 – 2.3 cm long, puberulent; rachis 3 – 4 mm long, clavate; basal bracts 1.8 – 2 mm long, triangular, persistent, nectary present, 1.3 – 2 × 1.8 – 2 mm, sessile, lentiform, medial and terminal bracts 1 – 1.4 mm long, oblong to oblanceolate, caducous; flowers 16 – 29, homomorphic. Flowers subsessile; calyx infundibuliform, puberulent, greenish, tube 6 – 7.2 mm long, lobes 1 – 1,7 mm long, acute; corolla narrowly infundibuliform, greenish to white-vinaceous, puberulent, tube 17 – 19 mm long, lobes 5.6 – 7 mm long, acuminate; androecium tube 29 – 32 mm long, exerted, stamens 75 – 84, 24 – 29 mm long, white to white-vinaceous; nectary disc present, 0.8 – 1 mm tall; gynoecium 1 - carpellate; ovary 2.4 – 3 mm long, glabrescent, styles 55 – 61 mm long, glabrous, stigma funnelform. Fruits not seen. Examined material: Alta Floresta, RPPN Cristalino, próximo ao Cristalino Lodge, 09 ° 35 ’ 52 ” S, 55 ° 55 ’ 47 ” W 31. X. 2023, fl., J. M. Fernandes et al. 1993 (HERBAM); 31. X. 2023, fl., J. M. Fernandes et al. 1994 (HERBAM). Novo Mundo, 09 ° 26 ’ 59 ” S, 55 ° 49 ’ 52 ” W, 1. XI. 2023, fl., J. M. Fernandes 2035 (HERBAM).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCE2D1FFF20F992FEF3CA46.taxon	distribution	This species occurs in Brazil, Colombia, Guyana, French Guiana, Suriname, and Venezuela (Barneby & Grimes 1996; GBIF 2023 a). In Brazil, it had been recorded in the states of Acre, Amazonas, Amapá, Pará, Rondônia and Roraima in areas of igapó forest, terra firme forest, and várzea forest (Morim 2010; Silva 2024). In Mato Grosso, M. pubiramea var. pubiramea has been recorded in the municipalities of Alta Floresta and Novo Mundo in riparian and várzea forests on the margins Rio Cristalino (Fig. 4). Among the other states where this species occurs, this variety has not been recorded in Rondônia (Silva 2024).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFCE2D1FFF20F992FEF3CA46.taxon	discussion	Macrosamanea pubiramea is similar to M. duckei (Huber 1909: 377) Barneby & J. W. Grimes (1996: 193) by the presence of basal bracts with nectaries, leaves with six or more pinna pairs, leaflets straight or obscurely sigmoid and inflorescences capituliform with a rachis 2.5 – 6.5 mm long, but differs by the larger flowers with a calyx 6.5 – 12 mm long, corolla 18 – 34 mm long and 80 – 106 stamens, while M. duckei has small flowers with a calyx 4.5 – 7.5 mm long, corolla 11 – 16 mm long, and 45 – 50 stamens (Barneby & Grimes 1996). We identified plants of Macrosamanea pubiramea var. pubiramea in the region of Cristalino based on the presence of leaflets that are rhombic-lanceolate and 3 – 4.8 mm long, with a short segment between leaflets.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFC12D1EFC87FF65FDBACCA0.taxon	description	Trees, 8 – 15 m tall, trunk with suberose wings, 2 – 4 mm tall; young branches angular, puberulous to sericeous-villose, aculeus straight, in a longitudinal series on the ribs of the branches. Stipules 5 – 6 mm long, narrowly triangular, caducous. Leaves bipinnate; petiole 1.4 – 3.6 cm long, angular; rachis 7 – 12 cm long, angular; petiolar nectary sessile, 3 – 5.1 × 2.5 – 3.2 mm, lentiform, obovate or elliptic, sometimes between the two last pinna pairs, sessile, discoid; pinna pairs 8 – 16; leaflets in 41 – 57 pairs per pinna, 4.7 – 9.6 × 1.1 – 2 mm, lanceolate, base asymmetrically truncate, apex acute, adaxial surface glabrous, abaxial surface sericeous-adpressed to sparsely sericeous-adpressed. Inflorescences spiciform, grouped, terminal; peduncle 0.4 – 1 cm long; rachis 9.5 – 12.5 cm long; bracts 0.6 – 0.8 mm long, ovate, persistent. Flowers subsessile, pentamerous, calyx campanulate, puberulent, tube 0.7 – 1 mm long, lobes 0.1 – 0.3 mm long; corolla infundibuliform, sparsely sericeous, whitish, tube 0.8 – 1 mm long, lobes 1.3 – 1.5 mm long; androecium tube 0.5 – 0.8 mm long, included, stamens 10, 3.3 – 4 mm long, pinkish white to reddish white, anthers with glands on the connective; nectary disc absent; gynoecium stipitate, stipe 1 – 1.4 mm long, ovary 0.7 – 1 mm long, sparsely sericeous, style 2.2 – 2.5 mm long, stigma punctiform. Fruit a legume, 7 – 12.3 × 1.7 – 2.1 cm, narrowly elliptic, base acute, apex obtuse to rounded, margins evident, surfaces glabrous with irregular veins; seeds 5 – 10.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFC12D1EFC87FF65FDBACCA0.taxon	materials_examined	Examined material: Alta Floresta, estrada vicinal 2 ª Oeste, 09 ° 53 ’ 25 ” S, 56 ° 8 ’ 18 ” W, 28. IV. 2023, fl., J. M. Fernandes 1951 (HERBAM); 27. VII. 2023, fr., J. M. Fernandes 1972 (HERBAM). Carlinda, casa de sementes, 09 ° 55 ’ 06 ” S, 55 ° 45 ’ 17 ” W, fl., L. Rodrigues 784 (HERBAM). Vila Bela da SantÍssima Trindade, Fazenda Barranco Alto, 14 ° 56 ’ 37 ” S, 60 ° 00 ’ 41 ” W, 22. III. 2014, fl., M. F. Simon et al. 2252 (Fotografias CEN 87263! and NY 2480114!).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFC12D1EFC87FF65FDBACCA0.taxon	distribution	This species occurs in Brazil, Colombia, Ecuador, Peru, and Venezuela (GBIF 2023 b; Ribeiro & Queiroz 2024). In Brazil, it had been recorded in the states of Amazonas and Pará in terra firme forests (Ribeiro & Queiroz 2024). In the state of Mato Grosso, it was found in the municipalities of Alta Floresta, Carlinda and Vila Bela da SantÍssima Trindade in seasonal semideciduous forest and vegetation on rocky outcrops (Fig. 4).	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
941E87DDFFC12D1EFC87FF65FDBACCA0.taxon	discussion	Piptadenia pteroclada is similar to P. gonoacantha (Martius 1837: 109) J. F. Macbride (1919: 17) because of the arboreal habit and stem with straight aculeus in a longitudinal series, but it differs by the presence of elliptical nectaries on the petiole and leaflets (7 – 12 × 1.4 – 2.4 mm) and larger inflorescences (12 – 22 cm long), while P. gonoacantha has annular or conical nectaries on the petiole and leaflets (4.5 – 7 × 0.8 – 1.2 mm) and smaller inflorescences (5.8 – 11 cm long) (Ribeiro & Queiroz 2024). Additionally, the suberose wings on the stem of P. pteroclada are up to 4 mm tall, while those of P. gonoacantha can be over 10 mm tall. This work increases the number of Inga and Piptadenia species for Mato Gross and reports the first record of the genus Macrosamanea for the state, demonstrating the importance of field expeditions in Amazonia in Mato Gross, studying herbarium collections, and taxonomy as a science.	en	Fernandes, José Martins, Soares, Célia Regina Araújo, Koch, Ana Kelly, Duarte, Temilze Gomes, Almeida, Anderson Alex Sandro Domingos de (2025): New records of the mimosoide clade (Caesalpinioideae, Leguminosae) for the state of Mato Grosso, Brazil. Rodriguesia (e 00312024) 76: 1-11, DOI: 10.1590/2175-7860202576001, URL: https://doi.org/10.1590/2175-7860202576001
