Leandra (sect. Leandra) sect. Leandra
Creators: name: Reginato, Marcelo
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliopsida
Myrtales
Melastomataceae
Leandra

description: Key to the species of Leandra sect. Leandra   
1. Inflorescences predominantly axillary................................................................................................................................... 2  
- Inflorescences predominantly terminal.................................................................................................................................. 6  
 2. Leaves apparently glabrous, inflorescences lax and long pedunculate, petals with apex rounded or slightly truncate.......... ............................................................................................................................................................................ L. capilliflora   
- Leaves with conspicuous indumentum (unbranched eglandular trichomes), inflorescences glomerulate, sessile or short pedunculate or solitary flowers, petals with apex acute and/or acuminate............................................................................ 3  
 3. External calyx teeth (6) 7–10 mm long, non-involucral bracteoles ................................................................ L. loligomorpha   
 - External calyx teeth less than 5 mm long, involucral bracteoles (reduced in L. angustifolia, only partially covering the hypanthia)............................................................................................................................................................................... 4   
 4. Branches and petioles with trichomes 3–8 mm long, leaf blades elliptic to obovate, style straight and surrounded by the stamens at anthesis .............................................................................................................................................. L. cogniauxii   
- Branches with trichomes less than 4 mm long, leaf blades predominantly lanceolate, style sigmoid and opposite of the stamens at anthesis...................................................................................................................................................................... 5  
 5. Leaves with trichomes 2.5–4 mm long; bracteoles 7–9 mm long ........................................................................... L. capitata   
 - Leaves with trichomes smaller than 2 mm long; bracteoles 2.5–5.5 mm long ................................................. L. angustifolia   
 6. Inflorescences formed by one glomerule (up to 3 flowers) or a solitary flower ..................................................... L. triantha   
- Inflorescences with more than 3 flowers............................................................................................................................... 7  
 7. Leaf bases amplexicaulous ............................................................................................................................. L. amplexicaulis   
- Leaf bases not amplexicaulous............................................................................................................................................... 8  
8. Leaves with glandular trichomes (this feature makes the plants viscous when living)......................................................... 9  
- Leaves without glandular trichomes (plants not viscous when living)................................................................................ 10  
 9. Larger stamen filaments 7–8 mm long, larger anthers 5–9 mm long, connective produced below the anther (0.8–1.5 mm) and appendaged .................................................................................................................................................... L. umbellata   
 - Larger stamen filaments ca. 4 mm long, larger anthers ca. 3 mm long, connective not produced below the anther and unappendaged ...................................................................................................................................................................... L. lapae   
10. Bracteoles persistent during flowering and fruiting, involucral, anthers pink......................................................................11  
 - Bracteoles early caducous, not forming a tight involucre (partially or non-involucral), anthers usually white (pink in L. aspera and L. therezopolitana)............................................................................................................................................. 14   
11. Leaves with 7 acrodromous nerves (including 5+2)............................................................................................................ 12  
- Leaves with 5 or fewer acrodromous nerves........................................................................................................................ 13  
 12. Leaf blades predominantly elliptic, base decurrent or cuneate, seldom obtuse ........................................................ L. sericea   
 - Leaf blades predominantly ovate, base rounded .......................................................................................................... L. ulaei   
 13. Branches with trichomes 1.5–4 mm long, petioles (0.2)0.5–1(1.5) cm long, larger stamens with anthers 5.5–7.5 mm long, fruits 10–13 × 7.5–9 cm ..................................................................................................................................... L. glazioviana   
 - Branches with trichomes 0.4–2 mm, petioles 0.2–3 cm long, larger stamens with anthers 3.4–4.5 mm long, fruits 5–10 × 4–6 cm .......................................................................................................................................................... L. melastomoides   
 14. Leaves basally nerved ............................................................................................................................................... L. aspera   
- Leaves plinerved.................................................................................................................................................................. 15
description: Published as part of Reginato, Marcelo, 2016, Taxonomic revision of Leandra sect. Leandra (Melastomataceae, Miconieae), pp. 448-450 in Phytotaxa 262 (1) on pages 448-450, DOI: 10.11646/phytotaxa.262.1.1, http://zenodo.org/record/13667415