Friday, October 17, 2025

[Botany • 2025] Telipogon rojasiae (Orchidaceae: Oncidiinae) • A New Species from relict forests on the western slopes of the northern Peruvian Andes


Telipogon rojasiae C.Martel, A.Diaz & Iturralde,

in Martel, Diaz Hernández, Iturralde et Collantes, 2025.


Abstract
Telipogon rojasiae, from the western Andean slopes of northern Peru, is described as a new speciesTelipogon rojasiae is similar to Telipogon montufarianus, which is only known from southern Ecuador, but differs in its cream-yellow flowers heavily stained with red-vinaceous (vs. bright yellow flowers), the sub-rhombic to obovate petals (vs. elliptic petals), the number of veins in the petals (9–10 veins vs. 5 veins) and labellum (26 veins vs. 16–19 veins), and its sagittate callus (vs. widely subcordiform callus). We provide a description, illustrations, photographs, and information about the habitat of this new species. Furthermore, we discuss the identity and occurrence of morphologically similar species. The discovery of this new entity highlights the importance of preserving the relict forests of the western Andean slopes in north-west Peru and south-west Ecuador.

Key words: Ecuador, endemic species, Oncidiinae, Telipogon ecuadorensis, Telipogon frymirei, Telipogon montufarianus

Telipogon rojasiae
A. Habit; B. Flower, ¾ view; C. Dissected flower with expanded perianth (d.sep: dorsal sepal; l.sep: lateral sepal; pet: petal; lab: labellum), all in frontal view except one lateral sepal; D. Expanded labellum, frontal view with details of the apex; E. Callus, frontal view with details of the setae; F. Pedicel, ovary and column, lateral view with details of the ovary cross-section; G. Column, frontal and lateral views with details of the setae; H. Anther cap, frontal and ventral views; I. Pollinarium, frontal and ventral views.

Telipogon rojasiae
A. Habit; B. Floral bract, lateral view; C. Flower, frontal view; D. Dissected flower, frontal view with details of the abaxial side of the sepals and the labellum surface; E. Callus and column, frontal view; F. Pedicel, ovary and column, lateral view with details of the ovary cross-section; G. Column, frontal, top and lateral views; H. Anther cap and pollinarium, ventral and dorsal views. Note that all the floral segments are in their natural position, not expanded.

 Telipogon rojasiae C.Martel, A.Diaz & Iturralde, sp. nov.
 
Diagnosis. Telipogon rojasiae is most similar to Telipogon montufarianus but differs by its cream-yellow flowers heavily stained with red vinaceous (vs. bright yellow flowers), the sub-rhombic to obovate petals, 15–17 × 11–12 mm (vs. elliptic petals, 12 × 8 mm), the greater number of veins in the petals (9–10 veins vs. 5 veins) and labellum (26 veins vs. 16–19 veins), and its sagittate callus (vs. a widely sub-cordiform callus).

Eponymy. Telipogon rojasiae is named after Dr Consuelo Rojas, professor of Botany at the Universidad Nacional Pedro Ruiz Gallo, for her work on biodiversity and plant conservation in Northern Peru.


 Carlos Martel, Alex G. Diaz Hernández, Gabriel A. Iturralde and Benjamín Collantes. 2025. Telipogon rojasiae (Orchidaceae, Oncidiinae), A New Species from relict forests on the western slopes of the northern Peruvian Andes. PhytoKeys. 265: 49-60. DOI: doi.org/10.3897/phytokeys.265.164394 [16-10-2025]

Resumen: Telipogon rojasiae, de los Andes occidentales del norte de Perú, es descrita como una nueva especie. Telipogon rojasiae es similar a Telipogon montufarianus, la cual solo se conoce de Ecuador, pero se diferencia por las flores cremas amarillas tenidas de rojo vino (vs. flores amarillo brillantes), los pétalos sub-rómbicos a obovados (vs. pétalos elípticos), el número de venas en los pétalos (9–10 venas vs. 5 venas) y el labelo (26 venas vs. 16–19 venas), y el callo sagitado (vs. el callo ampliamente sub-cordiforme). Proporcionamos una descripción, ilustraciones, imágenes e información sobre el hábitat de esta nueva especie. Además, analizamos la identidad y la presencia de la nueva entidad y de especies morfológicamente similares. El descubrimiento de la nueva entidad resalta la importancia de preservar los bosques relictos de la vertiente occidental de los Andes en el norte del Perú.
Palabras clave: Ecuador, especie endémica, Perú, Telipogon ecuadorensis, Telipogon frymirei, Telipogon montufarianus