Epidendrum tetartociclium Collantes & Hágsater 2013 GROUP Saxicola

TYPE Drawing Photo/TYPE Drawing by © Collantes and The AMO Herbaria Website

Common Name The Quadrant of a Circle Epidendrum [refers to the shape of the lateral sepals]

Flower Size 1.6 to 2" [4 to 5 cm]

Found in Tayacaja department of Peru in cloud forests at elevations around 3000 to 3600 meters as a medium sized, cold growing epiphyte with thickened, forming a thin, terete, fusiform pseudobulb, older ones rugose, striated and dark green, newer ones smooth and brilliant enveloped by a persistent, tubular non-foliaceous bract and carrying a single, apical, erect, narrowly oblong-elliptic, acute to sub-acute, sometimes with a miniscule apicule, basally narrow, sessile, coriaceous, green, waxy leaf that blooms in the summer and fall on a terminal, arising through a prominent, tubular, conduplicate, rounded apcially spathe enveloping the peduncle, erect to slightly arching, racemose, simultaneosuly 3 to 4 flowered inflorescence with much shorter than the ovary, triangular, acute floral bracts and carrying resupinate, seminal fragrant flowers with the sepals pale to creamy green, transluscent to somewhat opaque, the petals and lip creamy green to citrine-yellow and the mid lobe pale green, transluscent to somewhat opaque flowers.

"Epidendrum tetartociclium belongs to the 2013 GROUP Saxicola characterized by the pseudobulbous stems, racemose inflorescence subtended by a prominent spathaceous bract, and a few, showy flowers, either resupinate or nonresupinate. The species is recognized by the creeping habit, fusiform, uni-foliate pseudobulbs, resupinate pale green to citrine-yellow flowers, the petals nearly as wide as the sepals, 3-lobed lip, the lateral lobes shaped like a quarter-circle, the anterior margin forming a 80°-90° angle with the isthmus of the mid-lobe. It is similar to Epidendrum monzonense Kraenzl. 1905 where the lateral lobes of the lip are obliquely rounded-dolabriform, the anterior margin forming a 10°-30° angle with the isthmus, the flowers are yellowish, with the dorsal surface of the sepals red-brown." Hagsater etal 2013

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Orchidacearum 14 Plate 1438 Hagsater & Santiago 2013 See recognition section; * Icones Orchidacearum 14 Plate 1487 Collantes & Hagsater 2013 drawing fide;

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