Epidendrum katrun-yariku Hagsater and Wrazidlo 2020 GROUP Secundum SUBGROUP Secundum

LCDP by © M. Wrazidlo & A. Cisneros and Icones Orchidacearum 18(1) plate 1816 2020

Common Name The High Elevation Epidendrum [from the indigenous Pemon Arekuna languuage literally meaning high flower]

Flower Size .6" [1.5 cm]

Found in Venezuela and northwestern Brazil on summit plateaus and upper talus slopes of the tepuis in the southwestern part of the states of Bolívar and Amazonas, Venezuela: Chimantá Massif (Acopán-tepuí, Amurí-tepuí, Apacará-tepuí, Abacapá-tepuí), Auyán-tepuí, Ptari-tepuí, Camarcaibarai-tepuí, Meseta del Jaua, Sierra de la Neblina and Cerro Duida, as well as the neighboring area around Pico da Neblina in Brazil in wet savanna at elevations of 1380 to 2400 meters as a small to giant sized, coll to cold growing terrestrial with simple, cane-like, slightly sinuous, terete to slightly compressed towards the apex, thin stems covered by foliar, tubular, smooth, green tinged wine red, papyraceous and scarious when dry sheaths carrying 6 to 24, distichous, all along the stem, narrowly elliptic-lanceolate to ovate-oblong, articulate, apex obtuse to rounded, narrowly bilobed, coriaceous, smooth, green, margins entire, spreading leaves that blooms at any time of the year on a terminal, erect, without a spathe, peduncle 6.8 to 28" [17 to 70 cm] long, elongate, green, provided with several tubular, yellow with brown dots, scarious when dry, striated, papyraceous, imbricated, acute bracts, rachis .89 to 3.4" [2.0-8.5 cm] long, racemose becoming pluri-racemose, producing new racemes over time from the upper nodes of the peduncle, successively to 6, to 17 or more fl;owered inflorescence with progressively smaller, triangular, acuminate, much shorter than the ovary floral bracts and carrying non-resupinate, non fragrant flowers.

"Epidendrum katarun-yariku belongs to the GROUP Secundum SUBGROUP Secundum, which is recognized by the caespitose habit, simple stems, leaves oblong-lanceolate, coriaceous, bilobed, peduncle elongate, erect, the inflorescence pluri-racemose, the flowers non-resupinate, and the callus complicated, pluri-tuberculate. The species is recognized by the yellow flowers with the lip white. Epidendrum holstii Hágsater has crimson red to salmon or coral-red sepals and petals and the lip pink to purple, the callus massive, yellow with edges white, the flowers relatively small, and the sepals 8-13 mm long. Epidendrum secundum Jacq. has pink flowers with a massive white callus with base yellow, it is found atop the Auyán tepuy, as well as at the foot or on the slopes around the middle of the tepuis. There are in addition a totally yellow flowered species, concolor, which requires study. A totally white entity, and an orange-red species with a large yellow callus." Hagsater & Cisneros 2020

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 18(1) plate 1816 Hagsater & Santiago 2020 photos fide

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