Tanaecium exitiosum Dugand, Caldasia 1(5): 31, fig. 1. 1942.

Frazao, Annelise & Lohmann, Lucia G., 2019, An updated synopsis of Tanaecium (Bignonieae, Bignoniaceae), PhytoKeys 132, pp. 31-52 : 40

publication ID	https://dx.doi.org/10.3897/phytokeys.132.37538
persistent identifier	https://treatment.plazi.org/id/BBAD09D1-B95F-50E7-8BA8-DDC76EAB3E33
treatment provided by	PhytoKeys by Pensoft
scientific name	Tanaecium exitiosum Dugand, Caldasia 1(5): 31, fig. 1. 1942.
status

Treatment

10. Tanaecium exitiosum Dugand, Caldasia 1(5): 31, fig. 1. 1942.

Type.

Colombia. Santander: Barrancabermeja, 50 m, 5 Apr. 1942, R. Mora s.n. (holotype, COL [COL000004390]!; isotype, COL [COL000004389]!).

Habitat and distribution.

Tanaecium exitiosum is endemic to wet forest vegetation from Colombia (Caldas, Santander).

Phenology.

Flowering: March to April and December; fruiting: unknown.

Notes.

This species shares wide infundibular white flowers with T. apiculatum , T. crucigerum , T. cyrtanthum , T. duckei , T. kuhlmannii , and T. jaroba , from which it differs by the leaflets bullate adaxially, calyces campanulate and bilabiate, and anthers exserted (Tab. 1 View Table 1 ). Among the most similar species, Tanaecium exitiosum is only sympatric with T. jaroba , from which it can be distinguished by the lack of interpetiolar glandular fields (vs. present in T. jaroba ), bilabiate calyces (vs. truncate calyces in T. jaroba ), and exserted anthers (vs. sub-exserted anthers in T. jaroba ) (Tab. 1 View Table 1 ).