Triumfetta
Creators: name: Cardoso, Jesiane Miranda
name: Fernandes-Júnior, Aluísio José
name: Gil, André Dos Santos Bragança
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malvales
Malvaceae
Triumfetta

description: Updated key to the species of Triumfetta from Brazil (adapted from Fernandes-Júnior et al. 2018).
1. Androgynophore with 10 glands ............................................................................................................................ T. decaglandulata
- Androgynophore with 5 glands or absent..........................................................................................................................................2.
2. Inflorescence paniculiform; fruits with straight spines .......................................................................................... T. multiglandulosa
- Inflorescence racemiform or cymes; fruits with uncinate spines ......................................................................................................3.
3. Sepals at anthesis 15–20 mm long; petals 14–19 mm long...............................................................................................................4.
- Sepals at anthesis 3.5–11 mm long; petals 3–9 mm long..................................................................................................................5.
4. Fruits sparsely spinescent ................................................................................................................................................ T. longicoma
- Fruits densely spinescent............................................................................................................................................... T. grandiflora
5. Leaves elliptic...................................................................................................................................................................... T. obscura
- Leaves ovate, panduriform, and/or rhombiform................................................................................................................................6.
6. Flower without petals; androgynophore absent.................................................................................................................... T. lappula
- Flowers with distinct petals; androgynophore present ......................................................................................................................7.
7. Sepals 3–3.5 mm long; stamens 5; androgynophore quadrangular, membranaceous urceolus absent ............................. T. sampaioi
- Sepals 4–11 mm long; stamens 10–30; androgynophore ellipsoid to spherical, membranaceous urceolus present.........................8.
8. Sepals vinaceous, strongly cucullate, apical appendage ca. 0.5 mm long; androgynophore ca. 0.5 mm long; fruits cinereousvelutine ......................................................................................................................................................................... T. rhomboidea
- Sepals greenish-yellow, not cucullate, apical appendage 1–3 mm long; androgynophore 0.75–1 mm long; fruits glabrous or yellowish-pubescent ..........................................................................................................................................................................9.
9. Stigma entire; fruits 4–5-loculate .................................................................................................................................. T. althaeoides
- Stigma trifid; fruits 2–3-loculate .....................................................................................................................................................10.
10. Leaf blades covered only by stellate trichomes; petals elliptic; stamens 15–25 ............................................................ T. semitriloba
- Leaf blades covered by stellate and simple trichomes; petals boradly obovate; stamens 25–35 .................................... T. bogotensis
description: Published as part of Cardoso, Jesiane Miranda, Fernandes-Júnior, Aluísio José & Gil, André Dos Santos Bragança, 2022, Triumfetta decaglandulata (Grewioideae, Malvaceae), a new species from the Cerrado-Amazon ecotone, Northern Brazil, pp. 287-293 in Phytotaxa 545 (3) on page 292, DOI: 10.11646/phytotaxa.545.3.4, http://zenodo.org/record/6541543