Key to all currently known species of Passiflora subg. Passiflora, supersect. Laurifolia, ser. Quadrangulares 1. Stems 4-angular; bracts ovate; corona with 4–6 series of filaments ..................................................................................................2 - Stems 3-angular; bracts ovate-triangular; corona with 6–12 series of filaments ...............................................................................6 2. Petioles with 4–8 glands.....................................................................................................................................................................3 - Petioles with 2 glands.........................................................................................................................................................................5 3. Stipules ovate or ovate-lanceolate; margins smooth; sepals red to reddish-pink or brownish red.....................................................4 - Stipules ovate; margins slightly glandular; sepals blue to lavender, aristate ............................................................... P. macrocarpa 4. Stipules ovate and more than 1 cm wide; petioles with 6–8 glands; corona longer than 6 cm, wavy; sepals pale red to reddish-pink, not aristate ............................................................................................................................................................... P. quadrangularis - Stipules ovate-lanceolate, less than 1 cm wide; petioles with 2–4 glands; corona less than 6 cm, stout; sepals red to magenta, aristate....................................................................................................................................................................................... P. alata 5. Glands yellow, located at the top of the petiole............................................................................................................... P. phoenicea - Glands green, located just above the middle of the petiole...................................................................................................... P. alata 6. Petioles with 2 hooked glands; corona with 10–12 series.................................................................................................... P. trialata - Petioles with 4–6 hooked or cupshaped glands; corona with less than 8 series series.......................................................................7 7. Petiolar glands located at the top of the petiole; clustered in two closely spaced, opposite pairs .....................................................8 - Petiolar glands placed within the upper half of the petiole; arranged in two widely spaced, opposite pairs with an occasional fifth gland present.......................................................................................................................................................... P. yolandae sp.nov. 8. Stipules oblanceolate; leaf blade elliptic to obovate; bracts 4.3–5 × 2–3.1 cm; sepals and petals declined at anthesis; corona with 7 series...................................................................................................................................................................... P. longifilamentosa - Stipules linear-lanceolate; leaf blade long-ovate to oblong; bracts 3–3.5 × 1.5–2.5 cm; sepals and petals erect at anthesis; corona with 6 series.................................................................................................................................................................. P. carajasensis

Published as part of Kuethe, J. R., Montesinos, Kabir, Garzón-Suárez, Henry X. & Jost, Lou, 2023, A large new species of Passiflora, supersect. Laurifolia, ser. Quadrangulares (Passifloraceae) from the sub-Amazonian forests of Ecuador, with notes on its taxonomic alliance and distribution, pp. 277-284 in Phytotaxa 619 (4) on page 283, DOI: 10.11646/phytotaxa.619.4.2, http://zenodo.org/record/8430511