Tanaecium decorticans Frazao & L.G.Lohmann, Pl. Syst. Evol. 304: 1248. fig. 2. 2018.

Frazao, Annelise & Lohmann, Lucia G., 2019, An updated synopsis of Tanaecium (Bignonieae, Bignoniaceae), PhytoKeys 132, pp. 31-52 : 38

7. Tanaecium decorticans Frazao & L.G.Lohmann, Pl. Syst. Evol. 304: 1248. fig. 2. 2018.

Type.

Brazil. Pará: Belterra, Entrada da estrada de Aramanaí para Pindobal, próximo a Fazenda São Sebastião, 41 m a. s. l., 2°38'24.7"S, 54°59'06.6"W, 20 Sep 2015, A. Frazão 210 (holotype: SPF!; isotype: RB!, MO!).

Habitat and distribution.

Tanaecium decorticans is known from the Brazilian Amazon ( Pará, Maranhão).

Phenology.

Flowering: February and September; fruiting: September and December.

Notes.

This species is morphologically most similar to T. pyramidatum , sharing characters such as the subulate prophylls, infundibular corolla with white mouth, and linear fruits (Tab. 1 ). However, T. decorticans can be differentiated from T. pyramidatum by the stems with peeling epidermis (vs. stems without peeling epidermis in T. pyramidatum ), petiolules with arrow-shaped apices (vs. lacking in T. pyramidatum ), and fruits flattened with glandular patelliform and peltate trichomes along the margins (vs. fruits inflated without glandular patelliform and peltate trichomes along the margins in T. pyramidatum ) ( Frazão and Lohmann 2018) (Tab. 1 ).