Tanaecium cyrtanthum (Mart. ex DC.) Bureau & K.Schum, Fl. Bras. 8(2): 186. 1896.

Frazao, Annelise & Lohmann, Lucia G., 2019, An updated synopsis of Tanaecium (Bignonieae, Bignoniaceae), PhytoKeys 132, pp. 31-52 : 37-38

6. Tanaecium cyrtanthum (Mart. ex DC.) Bureau & K.Schum, Fl. Bras. 8(2): 186. 1896. Fig. 1M, Q.

Tecoma cyrtantha Mart. ex DC., in A. DC., Prodr. 9: 218. 1845. Type: Brazil. Bahia: Pão d’Espinho, caatinga, Oct., C.F.P. von Martius 1860 (holotype, M [M0088980]!; isotype, G-DC!).

Habitat and distribution.

Tanaecium cyrtanthum is distributed in dry forests, caatinga, cerrado and chaco in Bolívia (Santa Cruz, Tarija), Brazil (Bahia, Ceará, Goiás, Mato Grosso do Sul, Pernambuco, Rio Grande do Norte), and Paraguay (Alto Paraguay, Amambay, Concepción, San Pedro).

Phenology.

Flowering: September to January and April; fruiting: April to August and October.

Notes.

This species is generally caducous when flowering, and produces new leaves when fruiting. The tendril is simple and the leaflets have patelliform trichomes concentrated at the base abaxially. The calyces are campanulate or cupular, while the fruits are linear and inflated, bearing linear seeds, with a lateral seed body (Tab. 1 ).

Figures

Figure 1. Morphological diversity of Tanaecium. A-K Flowers A T. bilabiatum B T. dichotomum C T. duckei D T. jaroba E T. parviflorum F T. pyramidatum G T. revillae H T. tetragonolobum I T. tetramerum J T. truncatum K T. xanthophyllum. L-P Fruits L T. bilabiatum M T. cyrtanthum N T. jaroba O T. selloi P T. tetragonolobum. Q-T Seeds Q T. cyrtanthum R T. jaroba S T. revillae T T. selloi. Photos by A. Frazao, except A by B. Gomes B by R. Lopes E, M by C. Siniscalchi G by E. Kataoka H by Stevens I by Parada-Gutierrez J by L. H. M. Fonseca.