Telipogon Pillaropatatensis (Oncidiinae): a new species from the east-central andes of EcuadorAbstract
A new species, Telipogon pillaropatatensis, is described from the highlands of east-central Ecuador. It is morphologically similar to T. octavioi but differs by having a corolla with longitudinal thick vein lines without reticulations and a column with three dense bundles of equally sized setae. Also, our phylogenetic analyses suggest that they are not closely related. Interestingly, among the analyzed taxa, T. pillaropatatensis appears to have a closer phylogenetic relationship with the highly distinct T. pulcher and T. hausmannianus than with the morphologically similar T. octavioi. The new species has been found in a relatively small area, covering just a few square kilometers in east-central Ecuador. Additionally, we documented remarkable variation in the coloration and size of the corolla. Information regarding the species’ habitat, ecology, phylogenetic relationships, and conservation status is also provided.
Keywords: Llanganates National Park; montane forests; morphological variability; Pastaza River Basin; Telipogon octavioi; Tungurahua Province
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A. Habit.B. Flower, frontal view.C. Dissected flower.D. Lip and column.E. Callus and column, – view.F. Callus and column, frontal view.Drawn by L.Baquero from the plant that served as the holotype (GI-2210-5890, QCNE).
A. Habit.B. Inflorescence.C. Dissected flower.D. Column and callus.D1. – view.D2. frontal view.E. Side view of the ovary, column, and lip with callus.F. Pollinarium and anther cap, dorsal and ventral view.F1. anther cap.F2. pollinarium.Photographs by M.F.Monteros from the paratype (MFM 239)
The tree on the left is based on Maximum Likelihood (ML) analysis (numbers at the side of nodes represent bootstrap percentages).Tree on the right is based on Bayesian inference (BI) analysis (numbers at side of nodes represent posterior probability).Scale bars represent the mean number of nucleotide substitutions per site. The abbreviation (St.) stands for former Stellilabium.
A. Flowers found in situ under natural conditions.B. Flower obtained in ex situ culture.C. Close-up of the surface of a petal blade taken with a Discovery.V12 stereomicroscope, equipped with a plan Apo S 60mm lens, and AxioCam ICc5 digital camera.Photos by G.Iturralde (A, C) and L.Baquero (B).
A-C. Plants with flowers in situ.D. Xanthic variant growing in situ.E. Disturbed and patchy habitat surrounded by pastures for cattle and agricultural activities.Photos by G.Iturralde.
A. General view.B. Area of occupancy (AOO) and Extend of Occurrence in the restricted distribution of T. pillaropatatensis facing the Inter-Andean Valley of the Pastaza basin.Map created by M.F.Monteros.
A. Telipogon pillaropatatensis Iturralde, Monteros & Baquero.B. T. isabelae Dodson & Hirtz.C. T. elizabethiae Iturralde, Baquero & C.Martel.D. T. octavioi Dodson & R.Escobar.E. T. crisariasiae Baquero & Iturralde.F. T. thomasii Dodson & R.Escobar.Photos by G.Iturralde (A, C-F) and L.E.Baquero (B).