BRAZIL – Mato Grosso • Cujaba Brasiliae austro-occidentalis [Cuiabá]; 1829; fl.; A.L.P. Silva Manso 64. (Mart. Herb. Fl. Bras. 1148); lectotype (designated here): P [P00835771!]; isolectotypes: BR [BR0000005215522!, BR0000005214891], F frag. [V0057952F!], G [2 sheets, G0367878!], HAL [HAL0120314!], K [K000780095!], M [M0215297!, M0215298!], NY [NY00022925!].

BRAZIL – Bahia • “Marais de Japira”; 1840; fl.; Blanchet 3080; BR [BR0000005214860, BR0000005215195], G [G00367862; 2 sheets, G00367871; 2 sheets, G00367897], NY [NY01187809], P [P03641876, P03641940, P03641942], W [W0028305, W1889-0121563]. – Minas Gerais • “Minas Geraes prope Curvelho [Curvelo]. Bois n°65”; 1838; fl.; Claussen 965; GH [GH00286814], P [P0022921, P03641873, P03641884, P03641890, P03641892, P03641943, P03641944], RB [RB00539787].

The name Tachigali has an orthographical variant initiated by Jussieu, who cited the genus as “Tachigalia” (Jussieu 1789). Tulasne (1844) described the Tachigali species in his work as “Tachigalia”, and when describing Tachigali aurea, he cited two distinct forms (α and δ), lacking a subspecific epithet. For the first one, Tulasne (1844) attributed the gatherings of Claussen 965 and Blanchet 3080 as examined materials, while for the other one, he cited “Mart. Herb. Fl. Bras. Number 1148”, which is the type for the species. The forms were mainly distinguished by pubescence, petioles and petiolules shape, and inflorescence and flower colouration (Tulasne 1844). Currently, all specimens cited by Tulasne are circumscribed in T. aurea, with no form designation (Dwyer 1957).

Tulasne (1844) dedicated himself to the collection of the Museum of Natural History in Paris (P) (Stafleu and Cowan 1979), and he makes it clear in the introduction of his work that most of the plants described are specimens from the “Brazilian herbarium” collection deposited at P. Considering the three gatherings cited by Tulasne (1844), 30 specimens were found, including one glass negative from B herbarium (F; Grimé and Plowman 1987). The specimen at B was not located because it was probably destroyed during World War II (Merril 1943). The specimen at P (P00835771) was chosen as the lectotype (Fig. 1A, E). It is well-preserved and belongs to the main type collection of the species (form δ). Tulasne could have had access to all the specimens found, and there is a good chance that this specimen in P was seen. Among the A.L.P. Silva Manso gathering, one from BR (BR0000005215522) was used to obtain information about the collector, as it is the only one with a handwritten label indicating Silva Manso as the collector, his collection number, and the date (Fig. 1B, F).

Tuslane cited “Leptolobium luteum Mart. Herb. Fl. Bras. N°1148 (Cat. Autor. Absque descriptione)” in the synonymy of T. aurea. However, this name represents a nomen nudum (see ICN Art. 38.2, Ex. 1; Turland et al. 2018) assigned by Martius in the manuscript, which contains the numbers 723 to 1310 of Mart. Herb. Fl. Bras., without description or diagnosis.

Bentham (1870) described S. aureum var. velutinum and cited two Riedel gatherings (see ICN Art. 9.6, Ex. 6; Turland et al. 2018); the author does not mention the herbarium of the specimens, only the locality. Bentham devoted himself to botanical studies in England and donated his herbarium to the Royal Botanic Gardens in 1854, herbarium K (Urban 1906). Two specimens were found in K referring to the mentioned localities (Riedel 463 and Riedel 457), both with Riedel’s handwritten labels (Fig. 1C, G), and they additionally have the stamp referring to Bentham’s herbarium (Fig. 1H). The specimen collected in São Paulo (K000841634) is here designated as the lectotype (Fig. 1C), as it is in accordance with the protologue, is well-preserved, and has the most complete material (entire inflorescence).

Hassler (1910) described S. aureum var. polyphyllum based on the glabrous leaves compared to S. aureum and cited a gathering of T. Rojas (Hassler 1910), his herbarium number (E. Hassler Herbarium n°10573), and he had access to all samples, as his calligraph can be identified on the specimen’s label (Burdet 1975). The material at G is chosen as the lectotype, as it agrees with the protologue, is well-preserved, and represents the completest material, with the vegetative part complete and fruits intact (Fig. 1D, I–K).

Dwyer (1957) discussed the two forms of S. aureum created by Tulasne (1844), synonymised the varieties S. aureum var. velutinum and S. aureum var. polyphyllum in S. aureum var. aureum, and attributed the gathering of A.L.P. Silva Manso (“Mart. Herb. Fl. Bras. 1148”) as the type. The author did not mention a single herbarium for it, but the syntypes (B, F, photo and fragment, NY, and US), so his citation for the type cannot be considered as the lectotypification of Tachigali aurea (Dwyer 1957; see ICN Art. 7.11, Ex. 13; Turland et al. 2018). In addition, the author commented that the variety described by Bentham is probably equivalent to Tulasne’s α form, and after studying all materials, concluded that there is significant variation in the density of the pubescence of T. aurea (Dwyer 1957).

Mohlenbrock (1963) described Sweetia velutina, a later homonym for the name Sweetia velutina (Spreng.) G.Don and attributed a specimen of Tachigali aurea as the holotype (Fig. 1L–M). The basonym of this name was described by Sprengel (1826) and first combined by Don (1832). It is circumscribed in Galactia striata (Jacq.) Urb. In an attempt to validate the name, Yakovlev (1969) created Acosmium mohlenbrockii Yakov., a replacement name for Sweetia velutina Mohlenbr., based on the same type material. Both names are now synonyms of Tachigali aurea.

BRAZIL – Rio de Janeiro • [Nova Friburgo] Alto Macahé de Nova Friburgo; 4 Dec. 1892; fl.; A.F.M. Glaziou 20286; lectotype (designated here): P [P00577087!]; isolectotypes: C [C10012348!], F frag. [V0092498F!], K [K000264430!], NY [NY00022934], P [P0835772!], RB [RB00539702!].

BRAZIL • [Nova Friburgo] Alto Macahé de Nova Friburgo; 2 Nov. 1890; fl.; A.F.M. Glaziou 18206; C [C10012349!, C10012350!], F [V0057920F!], G [G00367882!], MPU [MPU023339!], NY [NY00022935!], P [P00835776!, P0083775!, P0083776!], R [R000008764!] • [Nova Friburgo] Alto Macahé de Nova Friburgo; 2 Nov. 1890; fl.; A.F.M. Glaziou 19879; K [K000264429!], NY [NY00022936!]; P [P00835773!, P00835774!].

Harms cited three of Glaziou’s gatherings in the original work on Sclerolobium beaurepairei (see ICN Art. 9.6, Ex. 6; Turland et al. 2018) without indication of the herbarium. There are a total of 20 samples of the cited specimens and one negative from B herbarium (F; Glaziou 20286; Grimé and Plowman 1987). Harms was a German botanist whose herbarium and type materials were stored at the B herbarium (Stafleu and Cowan 1979). Hence, the specimens deposited at B were likely part of the materials used by Harms to describe the taxon and were probably destroyed during World War II (Merril 1943). The samples available for lectotype designation are in accordance with the protologue, and some are well-conserved. The specimen deposited at P (P00577087) is in the best condition and is therefore designated as the lectotype (Fig. 2A, E).

The material housed at R (R000008764) has an original handwritten label with reference to the specimen number “1826”, which is likely an error since Glaziou only has three records of Sclerolobium beaurepairei: Glaziou 18206, 19879, and 20286 (Glaziou 1908), the same ones used for the species description (Fig. 2B, F). This specimen is therefore Glaziou 18206 and was considered part of the original material. In addition, the specimen (RB00539701) with the same locality as the syntypes Glaziou 18206 and Glaziou 19879 was found in the RB herbarium without any reference to the record number, making it impossible to know which of the specimens it represents, so it was not considered part of the original material.

BRAZIL – Bahia • “partia merid de la prov de Bahia”; 1840; fl.; J.S. Blanchet 3206A; holotype: G [G00367892!].

When describing Sclerolobium densiflorum, Bentham (1870) designated the specimen J.S. Blanchet 3206A as the holotype (Fig. 2C, G), deposited in the de Candolle’s herbarium at the time and was later donated by his relatives to the G herbarium in 1921, as indicated by an annotation on the label of the G specimens (Fig. 2G). The J.S. Blanchet 3206 specimens deposited in G (2 sheets, G00367903) and in F (V0057923F) were not considered isotypes, as they were not included by the author in the protologue.

BRAZIL • “Brasilia Meridionalis”; s.d.; fr.; F. Sellow s.n.; lectotype (designated here): K [K000262570!]; isolectotypes: B [B 10 0367786!], P [P00835777!].

Vogel (1837) described Sclerolobium denudatum with reference to a gathering made by Sellow but without mentioning the herbarium. The specimens collected by Sellow were mainly deposited at B and R, but the duplicates were later distributed to other herbaria (Urban 1906; Carvalho et al. 2020). Vogel developed his academic career at the University of Berlin, so he likely had access to Sellow’s specimens deposited in B. Five specimens and one negative from Kunth’s herbarium were found (Treviranus 1849; Grimé and Plowman 1987). The specimen housed at B and probably studied by Vogel may have been destroyed in World War II (Merril 1943); on the other hand, the material located there is a donation from NHV herbarium in 1936, almost 100 years later. The specimen at K (K000262570) is designated as the lectotype, as it agrees with the protologue, the photograph housed in F, and it has the stamp “Herb. Reg. Berolinense.”, indicating that it was a donation from B, so maybe it could be a part of the material seen by the author (Fig. 2D, J).

The name S. glaziovii was described by Taubert (1892), citing only the gathering Glaziou 13735 and the locality. Five specimens were located, and one glass negative (F) was made from the B herbarium (F; Grimé and Plowman 1987). The negative has an annotation with Taubert’s handwritten label (Burdet 1978), indicating that the B specimen from the negative was seen by the author (Fig. 2H, K). This specimen of B has not been located, as it was probably destroyed in World War II (Merril 1943). The specimen housed at P (P00577094) is chosen as the lectotype (Fig. 2I, L), as it agrees with the protologue, the photograph housed at F, and is a complete and well-conserved specimen.

BRAZIL – Rio de Janeiro • Itatiaia, Parque Nacional, Lote Hansen, borda da mata com o roçado; 1 Oct. 1940; fl., fr.; W. Duarte de Barros 48; lectotype (designated here): RB n°45677 [3 sheets, RB00585813!, RB00585812!, RB00539707!]; isolectotype: SP [SP000943!].

Dwyer (1957) indicated that the type material of S. duckei is deposited in herbarium R (T.: Duarte de Barries 48 (R)!). However, he refered to the Systematic Botany Section of the Botanical Garden of Rio de Janeiro as R, thus to the herbarium RB. The correction for the location of the type material is clarified in the present paper (see ICN Art. 9.2; Turland et al. 2018).

The specimen deposited in RB under the number 45677 is composed of three sheets. The first of which has the original herbarium labels and a determination label written by Dwyer, together with a barcode (RB00539707; Fig. 3A), and it is composed of two branches: one with leaves and the other with a leaf, inflorescence, and flowers. The second sheet (RB00585812; Fig. 3B) has a duplicate distribution stamp (Fig. 3C) indicating that the SP herbarium received one sample (Fig. 3D), and it is composed of a branch with leaves and a fruit. The third sheet (RB00585813; Fig. 3E) has a branch with two leaves and an envelope of fragments with leaflets, inflorescence side branches, flowers, and a fruit. The curator of the RB herbarium distributed part of the RB type collection to other herbaria in 2008 (Rafaela Campostrini Forzza pers. comm.), so the SP specimen was previously studied by Dwyer, making it impossible to consider the set deposited in RB to be seen as a holotype assembled in more than one preparation, as it is now only part of the whole. Therefore, the gathering located at RB under the number 45677 is chosen as the lectotype, as it is the complete material and what the author first designated.

BRAZIL – Rio de Janeiro • Alto Macahé de Nova Friburgo; 26 Dec. 1881; fl.; A.F.M. Glaziou 19059; lectotype (designated here): P [P00350588!]; isolectotypes: F frag. [V0057924F!], K [K000262572!], NY [NY00022937!], P [P00350591!].

BRAZIL • Alto Macahé de Nova Friburgo; 26 Dec. 1881; fl.; A.F.M. Glaziou 13734; P [P00350589!, [P00350590!], R [R000008768!].

Harms (1928) cited two of Glaziou’s gatherings without a herbarium designation in the original work (see ICN Art. 9.6, Ex. 6; Turland et al. 2018). Eight specimens and one glass negative from B herbarium (F; Glaziou 19059; Grimé and Plowman 1987) were found. The specimen at P (P00350588) is designated as the lectotype (Fig. 3F), as it agrees with the protologue, with the photograph housed at F, and it is well-preserved.

BRAZIL – Vellozo’s original parchment plate of Flora Fluminensis in the Manuscript Section of the Biblioteca Nacional do Rio de Janeiro; lectotype (designated here): cat. no.: mss1198653_068; later published in Flora Fluminensis Icones vol. 4: t. 70 (Vellozo 1827 [1831]).

Unlike the other species mentioned, Tachigali paratyensis has Cassia paratyensis Vell. as its basionym, validly published in 1829 in Flora Fluminensis (Carauta 1973; Lima 1995). Lima (1995) transferred the name to Tachigali paratyensis and cited Vellozo’s published illustration, indicating it as the type. This cannot be considered a valid lectotypification because the published illustration is posterior to the publication of the protologue and, according to the ICN Art. 9.4 (Turland et al. 2018), the original material comprises those specimens and illustrations unpublished and published prior to, or at the time of, publication of the protologue (Fig. 3G). Considering this, the original illustration of C. paratyensis is here designated as the lectotype.

BRAZIL – Rio de Janeiro • Petrópolis, à Caxambu; Mar. 1886; fl.; A.F.M. Glaziou 15933; lectotype (designated here): P [P00350585!]; isolectotypes: C [C10012351!], F frag. [V0057931F!, V0092499F!], G [G00367851!], K [K000264439!], P [P00350586!, P00614378!].

Harms (1904) cited a Glaziou gathering (Glaziou 15933) in the original work on S. pilgerianum without herbarium designation. The specimens deposited at B may have been the material used by the author to describe the taxon and were probably destroyed during World War II (Merril 1943). Nine syntypes were found (see ICN Art. 9.6, Ex. 5; Turland et al. 2018) and one glass negative in F from a material from B (Grimé and Plowman 1987). The specimen in P (P00350585) is designated as the lectotype (Fig. 3H), as it agrees with the protologue, with the photograph housed at F, and it is well-preserved.

In the original work of S. striatum, Dwyer (1957) indicated that the type is deposited in MO only with a registration number of the specimens at the herbarium of origin (RB n°61518), and there are two specimens of S. striatum at MO with the RB number: MO n°16570778 and MO n°2703099. The MO curatorial data indicate that specimen n°2703099 was added to the collection between 1979 and 1980 (Lauren Boyle pers. comm.) after the description of the name (in 1957). However, as Dwyer did not specify the MO number, to avoid future errors in the holotype citation, the material MO n°16570778 is designated as the lectotype (Fig. 3I). It is in accordance with the protologue and has a label written by Dwyer indicating that this material is part of the type.

BRAZIL – Mato Grosso • in sylvis prope Cujaba Brasiliae meridionalis [Cuiabá]; 1841; fl.; A.L.P. Silva Manso s.n. (Mart. Herb. Fl. Bras. n°1147); lectotype (designated here): K [K000264417!]; isolectotypes: BR [BR000000591529!, BR000000591352!, BR000000591562!, BR000000591595!, BR000000591598!], F [V0057930F!], G [2 sheets, G0367860!], M [M0215288!, M0215289!], NY [NY0022924!], P [P00835781!], W [W0004897!].

Tulasne (1844) published Sclerolobium rubiginosum from an unpublished manuscript by Martius (Mart. Herb. Fl. Bras.), and this name was later transferred to variety status by Bentham (1870) as Sclerolobium paniculatum var. rubiginosum. Thirteen specimens are now recognised in different collections. Tulasne likely saw the P specimen since the author dedicated himself to the P herbaria (Stafleu and Cowan 1979), but there is no explicit reference to the holotype. The material from K (K000264417) is chosen as the lectotype because it is in a better condition and represents part of two phenological stages (young flowers and fruits; Fig. 4A, G).

Oliveira-Filho (2006) made four new combinations for the Sclerolobium species native to Minas Gerais (Brazil) and circumscribed them under the genus Tachigali: T. denudata, T. duckei, T. pilgeriana, and T. subvelutina (Benth.) Oliveira-Filho. The author followed a consistent pattern in the new combinations, correctly cited the basionym (following ICN Art. 40.1; Turland et al. 2018), used the term “comb. nov.” for each one, and, in a note, mentioned that the new combination transfered Sclerolobium to Tachigali, following Lewis et al. (2005). However, Oliveira-Filho (2006) did not followed this pattern when transferring Sclerolobium rubiginosum to Tachigali, referring to the name as “comb. ined.” (unpublished combination) and did not made it clear in the note that a new combination is being proposed, as in the other names.

In independent non-serial work submitted to educational institutes to obtain a degree, “comb. ined.” is regularly used to highlight that the name presented should not be considered valid but unpublished and provisional. These kinds of works are not effective publications without internal evidence to be considered as such, following ICN Art. 30.9 (Turland et al. 2018).

Despite correctly citing the basionym, the name published by Oliveira-Filho (2006) cannot be considered valid but a provisional and unpublished name (see ICN Art. 36.1; Turland et al. 2018). The use of “comb. ined.” should be interpreted in the same way as the use of “ad int. [ad interim, for the time being]” presented in ICN Art. 36.1, Ex. 6 (Turland et al. 2018), and as the use of “comb. ined.” in those independent non-serial work. Considering this, a new combination for Tachigali rubiginosa is proposed herein.

BRAZIL • Cujaba [Cuiabá] et in prov. Minas Geraes; s.d.; fl.; A.L.P. Silva Manso s.n. (Mart. Herb. Fl. Bras. n°1155); lectotype (designated here): K [K000262571!]; isolectotypes: BR [BR000000591385!, BR000000591418!], G [G00367925!], M [M0215286!, M0215287!].

Bentham (1850) described Sclerolobium rugosum and attributed the authorship to Martius, even believing the name had not yet been described at the time. More than one specimen is mentioned in the original work of S. rugosum: one from Mato Grosso, Cuiabá and another from Minas Gerais, but as the record of Martius’ Herbarium Florae Brasiliensis is made by species, both samples were combined under the number Mart. Herb. Fl. Bras. 1155, and thus cited in the protologue and later treatments. The only mention of A.L.P. Silva Manso is not in the materials (except from H.C. Lima’s note on M0215286), but there is a citation by Bentham in Flora Brasiliensis (Bentham 1870). As A.L.P. Silva Manso gatherings are from Mato Grosso, part of the specimens could be made by this collector (Urban 1906). However, there is no collector information for the Minas Gerais records.

Seven syntypes were found (see ICN Art. 9.6; Turland et al. 2018) and a glass negative in F from M (M0215286) (Grimé and Plowman 1987). The specimen located at K (K000262571) is designated as the lectotype. It belonged to Bentham’s herbarium, agrees with the protologue, and is well-preserved (Fig. 4B, H).

BRAZIL – Goiás • ad fl. Paranahyba prov. Goyaz; s.d.; fl.; Burchell 6095; lectotype (designated here): K [K000264418!]; isolectotype: P [P03642214!].

Sclerolobium paniculatum var. subvelutinum was described by Bentham (1870). The herbarium where the analysed material was housed was not mentioned, but Bentham devoted himself to botanical studies in England, and his collection was donated in 1854 to the K herbarium (Urban 1906). Two syntypes of S. paniculatum var. subvelutinum (see ICN Art. 9.6, Ex. 5; Turland et al. 2018) were found, one at P and the other at K. The material in P mentions a donation from the K herbarium, which is the origin of the specimens (Fig. 4C, I). It is possible that Bentham had examined both specimens. However, the material located at K (K000264418) is designated as the lectotype, as it is well-conserved, is in the best condition, and is in accordance with the protologue (Fig. 4D).

BRAZIL – Rio de Janeiro • Rio D’Ouro, près de l’eau; 24 Aug. 1879; fl.; A.F.M. Glaziou 10683; lectotype (designated here): P [P00350582!]; isolectotypes: F frag. [V0093906F!], F [V0057933F!], G [G00367865!], K [K000264436!], P [P0035083!, P0035084!], R [R000008767!], S [S-R-9145!].

Harms (1904) refered to Glaziou 10683 as the type material without specifying its herbarium origin. Nine syntypes were found (see ICN Art. 9.6; Turland et al. 2018), one glass negative from B herbarium (Grimé and Plowman 1987). The material from P (P00350582) is designated as the lectotype, as it is well-conserved, is in the best condition, and is in accordance with the protologue and the photograph at F (Fig. 4E, J).

There is a record of Glaziou material at G, which is a branch of Sclerolobium urbanianum in the same phenological state as the other syntypes of S. urbanianum, but has manuscript data from Glaziou 10643, determined as Swartzia flaemingii Raddi, collected in Tijuca, Rio de Janeiro, in 1880 (Fig. 4F, K). There is only a single record of Sclerolobium urbanianum made by Glaziou, so this specimen was considered part of the type material, as previously noted by H.C. Lima in October 2010 (Fig. 4L).