Neurolaena Brown 1817
Creators: name: Bueno, Vinicius R.
name: Gostel, Morgan R.
name: Heiden, Gustavo
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Neurolaena

description: TAXONOMIC KEY TO INFRAGENERIC TAXA AND SPECIES OF NEUROLAENA
1. Ratio of paleae-disc corolla length greater than 1 ......................................................................................... N. sect. Neurolaena ... 2
- Ratio of paleae-disc corolla length equal to or less than 1 ............................................................................ N. sect. Brevipaleae ... 8
2. Involucre cylindrical, paleae 4.9–6.5 mm long ............................................................................................... N. ser. Neurolaena ... 3
- Involucre campanulate, paleae 7–10 mm long.......................................................................................... N. ser. Macrocephalae ... 6
3. Cypselae glandular-punctate............................................................................................................................................... N. balsana
- Cypselae eglandular............................................................................................................................................................................4
4. Involucre 7.5–10 mm long ............................................................................................................................................. N. intermedia
- Involucre 2.75–7 mm long .................................................................................................................................................................5
5. Abaxial leaf surface eglandular, leaf blade entire; phyllaries glabrous; pappus bristles 50–60........................................... N. lamina
- Abaxial leaf surface glandular-punctate, leaf blade bilobed; phyllaries pilose; pappus bristles 30–40................................ N. lobata
6. Abaxial leaf surface eglandular .......................................................................................................................................... N. schippii
- Abaxial leaf surface glandular-punctate .............................................................................................................................................7
7. Paleae 7–8 mm long; disc floret tube 1.8–2 mm long......................................................................................................... N. wendtii
- Paleae 8.5–9.5 mm long; disc floret tube 2.4–3 mm long........................................................................................ N. macrocephala
8. Heads discoid; paleae 5.5–7.4 mm long................................................................................................................. N. ser. Eradiatae 9
- Heads radiate; paleae 3.3–5.45 mm long............................................................................................................... N. ser. Radiatae 11
9. Shrubs 1–1.5 m tall; involucre 9–9.5 × 14–14.5 mm .............................................................................................. N. jannaweissana
- Shrubs 2–8 m tall; involucre 5–8 × 4.6–8 mm .................................................................................................................................10
10. Cypselae glabrous............................................................................................................................................................ N. venturana
- Cypselae pilose............................................................................................................................................................ N. macrophylla
11. Venation camptodromous; disc florets per capitulum 25–30, corollas white.................................................................. N. curtipalea
- Venation penninervous; disc florets per capitulum 40–50, corollas yellow or yellow to purplish .................................................12.
12. Petioles 10.3–14.2 mm long; cypselae 1.9–2 mm long, pappus 60–70 bristles ............................................................ N. cobanensis
- Petioles 3.5–8 mm long; cypselae 1.3–1.5 mm long, pappus 30–50 bristles ..................................................................................13.
13. Leaves 2.6–18 cm wide, leaf blade lobed; involucre 7-seriate; pappus 40–50 bristles................................................... N. oaxacana
- Leaves 1.5–2 cm wide, leaf blade entire; involucre 4–5-seriate; pappus ca. 30 bristles.................................................. N. serboana
description: Published as part of Bueno, Vinicius R., Gostel, Morgan R. & Heiden, Gustavo, 2023, An updated synopsis of Neurolaena (Neurolaeneae, Asteraceae) with a new species from the Colombian Andes, pp. 131-145 in Phytotaxa 622 (2) on pages 132-133, DOI: 10.11646/phytotaxa.622.2.3, http://zenodo.org/record/10146797