Passiflora mistratensis and related species, 1753

Kuethe, J. R. & Vanderplank, John, 2022, Passiflora mistratensis, a new species of Passiflora (Passifloraceae) from Colombia, commonly known from European cultivation, Phytotaxa 552 (2), pp. 159-165 : 163-164

Key to Passiflora mistratensis and related species in Colombia and Mesoamerica.

1. Leaves unlobed, coriaceous to sub-coriaceous in texture ..................................................................................................................2

- Leaves three-to-five lobed or lobulate, sub-coriaceous in texture .....................................................................................................6

2. Leaves and stems hirsute to tomentose, mostly pronounced along the veins and foliar margins ......................................................3

- Leaves and stems glabrous throughout, stems occasionally glaucous ...............................................................................................4

3. Leaves and stems densely hirsute. Foliar margins glandular. Sepals densely hirsute abaxially. Colombia......................................... ........................................................................................................................................................ P. praeacuta Masters (1887: 220)

- Leaves and stems finely tomentose. Foliar margins smooth. Sepals glabrous on both surfaces. Mexico........................................... .............................................................................................................................................................. P. purpusii Killip (1922: 261)

4. Petioles with two pairs of petiolar nectaries present. Stipules featuring a distinct yellow mucro at the tip. Awns longer than 12 mm. Colombia.............................................................................................................................................................................. P. danielii

- Petioles with 4–6 scattered glands, sometimes 2–3 paired. Awns shorter than 12 mm ......................................................................5

5. Stipules without mimicry. Awns 4–7 mm long. Mesoamerica and northern Colombia (Choco)....................................... P. oerstedii

- Stipules mostly without mimicry. Awns a mere 1–2 mm long. Colombia...................................................... P. mistratensis sp. nov.

6. Petioles with two pairs of petiolar nectaries present. Stipules featuring a distinct yellow mucro at the tip. Antioquia ...................... .............................................................................................................................................................................................. P. trisulca

- Only a single pair of petiolar nectaries present. Stipules showing no form of egg mimicry (no mucro at tip). Cundinamarca .......... ............................................................................................................................................................................................... P. smithii