Thursday, July 3, 2025

[Botany • 2024] Passiflora pitalensis (Passifloraceae) • A New Species of Passiflora Subgenus Passiflora in the Flora of Colombia discovered in uncharted Andean territory


Passiflora pitalensis  Arrigui-Torres, J.Ocampo & Rosero-Toro, 

in Arrigui-TorresOcampo et Rosero-Toro, 2024.

Abstract
A new species of Passiflora belonging to the subgenus Passiflora (supersection Stipulata, section Kermesinae) is described and illustrated from living material and herbarium specimens. Passiflora pitalensis is similar to P. lehmannii, and it can be recognized primarily by its petiole green, leaves with broader lobes, peduncle green, bract lanceolate, corona filaments in 5 series with outer filaments in 2 series, fruit ovoid, and seed margin dentate. This species is rare and endemic to Colombia in the Andean region at elevations ranging from 1,749–2,027 m and should be considered Endangered (EN) due to its restricted occurrence with a small population size of no more than 90 individuals.

 Eudicots, Andes, Endemic species, Huila, Macizo Colombiano, new taxon, passionflower  

 Passiflora pitalensis.
Lankester composite dissection plant style sheet from holotype (E. Arrigui-Torres, J. Ocampo & J.H. Rosero-Toro 221; SURCO!).
A mature plant of Passiflora pitalensis. A. Lateral view of the flower. B. Alternate view of the flower. C. Flower bud. D. Front view of the flower. E. Cross section of the flower. F. View of the leaf with stipule. G. Detail of marginal petiolar stipitate glands. H. Abaxial surface of the leaf. I. Detail of ocelli on the abaxial surface of the leaf. J. Ripe fruit. K. Cross section of mature fruit. L. Detail of dry seed.  
Photographs by Edwin Arrigui-Torres.


 Passiflora pitalensis Arrigui-Torres, J.Ocampo & Rosero-Toro

Etymology:—The specific epithet is in honor of the municipality El Pital where the new species was observed for the first time. El Pital is located in the southwest of the department of Huila, on the upper valley plain of the Magdalena River in the foothills of the central mountain range of Colombia (Cordillera Central) in the region known as Macizo Colombiano.



Edwin ARRIGUI-TORRES, John A. OCAMPO and Jeison Herley ROSERO-TORO. 2024. A New Species of Passiflora (Passifloraceae, subgenus Passiflora) in the Flora of Colombia discovered in uncharted Andean territory. Phytotaxa. 642(2); 156-168. DOI: doi.org/10.11646/phytotaxa.642.2.4  [2024-03-28]
https://x.com/Edwin_Arrigui/status/1773326825990570196
Researchgate.net/publication/379504612_A_new_species_of_Passiflora_in_the_Flora_of_Colombia
https://www.behance.net/gallery/194995083/Passiflora-pitalensis