Specklinia brighamii (S. Watson, 1888) Pridgeon & M. W. Chase. A. Flower, 2001

Pozo, Diego Gutiérrez Del, Iturralde, Gabriel A., Lapo-Gonzalez, Nadia, Kuethe, J. R., Garzón-Suárez, Henry X., Vélez-Abarca, Leisberth, Baquero, Luis E. & Jiménez, Marco M., 2025, A new species of Specklinia subgenus Sarcinula (Orchidaceae: Pleurothallidinae) from central-eastern Ecuador, Phytotaxa 704 (3), pp. 293-300 : 298

Key to the species of the Specklinia brighamii group (based on Karremans 2020)

1. Sepals apically connivant ≥ 1 cm long, lip about a third that of sepals .................................................................................. S. alexii

- Sepals partially spreading, less than 1 cm long, lip not less than half that of sepals .........................................................................2

2. Sepals and petals with well-defined purple stripes, sepal margins smooth, lip broadening apically............................ S.simmleriana

- Sepals and petals with purple stripes, spots or blotches, sepal margins glandular, lip linear, not broadening apically.....................3

3. Plant with the longest leaves up to 10.0 cm, pedicels ≥ 1 cm long, petals sub-rhombic ................................................ S. acrisepala

- Plants with the longest leaves up to 7 cm, pedicels less than 1 cm long, petals longer than wide.....................................................4

4. Flowers with well-defined purple stripes that are more apparent externally, dorsal sepal more than 7 mm long, lateral sepals fused to about halfway, then somewhat divergent .......................................................................................................................................5

- Flowers with purple partial stripes, spots or blotches, dorsal sepals 6 mm long, lateral sepals fused to close to the apex, connivant............................................................................................................................................................................................6

5. Sepals straight, column foot ½ of the column length, column wings conspicuous with the margins sometimes minutely denticulate......................................................................................................................................................................... S. brighamii

- Sepals concave below the middle, convex apically, column foot as long as the column length, column wings inconspicuous with entire margins ........................................................................................................................................................................ S. luluae

6. Inflorescence ≥ 10 cm long, flowers yellowish orange with sparse reddish-purple spots ................................................ S. tirimbina

- Inflorescence less than 10 cm long, flowers yellowish, heavily stained with purple..................................................... S. barbelifera