Machaerium hirtum (Vellozo 1829: 296) Stellfeld (1944:132)

Rauber, Cristiane Ritter, Lima, Laura Cristina Pires, Caxambu, Marcelo Galeazzi & Temponi, Lívia Godinho, 2021, Synopsis of Leguminosae from Iguaçu National Park, Paraná, Brazil, Phytotaxa 501 (2), pp. 245-280 : 263

35. Machaerium hirtum (Vellozo 1829: 296) Stellfeld (1944:132) . ( Fig. 6B and C )

Distribution: In Brazil it occurs in almost the entire country with the exception of some states of the Northeast ( Flora do Brasil 2020). In ParNa Iguaçu it occurs in the Céu Azul and Foz do Iguaçu areas.

Reproductive period: According to Sartori & Tozzi (1998) this species flowers from November to March and fruits from March to June. In ParNa Iguaçu it was found in flower and fruit in March and only in fruit in July.

Diagnostic characteristics: The genus is recognized by its arboreal habit with alternate leaflets, samara fruits and seeds with basal position. M. hirtum is characterized by its narrow oblong leaflets, up to 58 per leaf, pairs of nodal and internodal prickles and samaras with an obovate wing.

Conservation: Native-NE.

Selected examined material: BRAZIL. Paraná: Area 1, Céu Azul, 07 March 2019, (fl., fr.), C.R. Rauber et al. 337 ( UNOP); Area 3, Foz do Iguaçu , 01 July 2017, (fr.), L.C.P. Lima 968 ( EVB, HCF) .

Figures

FIGURE 6.A:Lonchocarpus cultratus, flower; Band C:Machaerium hirtum:B: branch withinflorescence;C:fruit;D: Macropsychanthus violaceus, flower; E and F: Macroptilium erythroloma: E: inflorescence; F: infructescence; G and H: Mimosa pigra: G: branch with inflorescence; H: infructescence; I and J: Mucuna urens: I: branch with inflorescence; J: inflorescence; K: Parapiptadenia rigida, branch with fruit; L: Schnella microstachya, fruit. (Rauber CR 2018)