Calea (sect. Calea) sect. Calea
Creators: name: Bueno, Vinicius R.
name: Gostel, Morgan R.
name: Heiden, Gustavo
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Calea

description: Key to the species of Calea sect. Calea from Brasil
1. Capitula radiate..................................................................................................................................................................................2.
- Capitula discoid .................................................................................................................................................................................6.
2. Capitulum solitary or capitula arranged in pairs ...............................................................................................................................3.
- Capitula arranged in capitulescences with three or more capitula ....................................................................................................4.
3. Involucre 3-seriate, 7.5–10 mm long, receptacle epaleaceous; ray florets 5–7, disc florets ca. 15; pappus scales 0.8 mm long ........ .......................................................................................................................................................................................... C. caleoides
- Involucre 6-seriate, 12.2–12.7 mm long, receptacle holopaleaceous; ray florets 8–10, disc florets 30–40; pappus scales 1.1–4.3 mm long..................................................................................................................................................................................... C. repanda
4. Ray florets 11–12; pappus scales ca. 15 ........................................................................................................................ C. lucidivenia
- Ray florets 2–10; pappus scales 25–43 .............................................................................................................................................5.
5. Leaf margins pinnatifid; capitula sparsely arranged...................................................................................................... C. pinnatifida
- Leaf margins serrate; capitula densely arranged ................................................................................................................. C. serrata
6. Phyllaries foliaceous, longer than the involucre................................................................................................................................7.
- Phyllaries foliaceous, of the same length or shorter than the involucre............................................................................................8.
7. Ray florets 12–25 .................................................................................................................................................................... C. lutea
- Ray florets 4–5 .................................................................................................................................................................. C. papposa
8. Receptacle epaleaceous ............................................................................................................................................... C. gentianoides
- Receptacle oligopaleaceous or holopaleaceous.................................................................................................................................9.
9. Involucre 4-seriate; pappus scales 1.9–2.3 mm long........................................................................................................ C. divergens
- Involucre 5–8-seriate; pappus scales 2.7–5.5 mm long...................................................................................................................10.
10. Involucre 5-seriate...........................................................................................................................................................................11.
- Involucre 7–8-seriate .......................................................................................................................................................................12.
11. Involucre 3.5–5.2 mm long; receptacle oligopaleaceous, paleae 2–4; disc florets 7–9; cypselae 2.7–3 mm long .............................. ................................................................................................................................................................................. C. diamantinensis
- Involucre 6.7–8.4 mm long; receptacle holopaleaceous, paleae 20–30; disc florets 20–30; cypselae 2–2.5 mm long ....................... ............................................................................................................................................................................................... C. oliveri
12. Leaf blade glabrous; pappus scales 15 ............................................................................................................................ C. abelioides
- Leaf blade pilose; pappus scales 16–25...........................................................................................................................................13.
13. Petiole 0.5–1.5 mm long, leaf surface abaxially pubescent ......................................................................................... C. solidaginea
- Petiole 3–7 mm long, leaf surface abaxially tomentose............................................................................................... C. lantanoides
description: Published as part of Bueno, Vinicius R., Gostel, Morgan R. & Heiden, Gustavo, 2022, Calea repanda (Asteraceae: Neurolaeneae), a new species and novel characters for the taxonomy of the genus, pp. 280-288 in Phytotaxa 544 (3) on pages 285-286, DOI: 10.11646/phytotaxa.544.3.2, http://zenodo.org/record/6520258