Epidendrum acreense (Brieger & Bicalho) Christenson 1991 GROUP Physinga

TYPE Drawing by Brieger

Part shade

Common Name The Acre Epidendrum [A state of western Brazil]

Flower Size

Found in the state of Acre in western Brazil

"Epidendrum acreense (Brieger & Bicalho) EA Christenson belongs to the GROUP Physinga which is characterized by the caespitose plants, the apical and racemose inflorescence producing new racemes with time and thus pluriracemose, the successlve flowers opening one at a time on an elongate peduncle with acuminate bracts, the lip entire and the ovary with a prominent vesicle. The species is found due west of E strobicaule, at the foot of the Andes, and has white flowers, a transversely oblong, strongly concave lip embracing the column and a prominent, bifid clinandrium-hood. E strobicaule has relatively large rupiculous plants, with the base of the stems thickened and progressively attenuate, the lip is obreniform, spreading, and the clinandrium-hood much reduced and entire, exposing the anther cap totally. Epidendrum prostratum (Lind!.) Cogn. has small plants with thin stems, but the sepals and petals are partly spreading, the base of the lip deeply cordate, with 3 prominent keels on the disc, and the prominent clinandrium-hood deeply emarginate. Epidendrum physodes Rchb.f. also has thin stems, the leaves inserted at a 45' angle to the stem, lanceolate, short-acuminate, gray-green leaves 1.6 to 2,8" [3.5 to 7 cm] long, spreading petals, the lip transversely elliptic with a pair of prominent, rounded calli in front of the column, and the clinandrium-hood short, fleshy, the margin slightly crenate." Adapted from Plate 1184 Hagsater etal 2008

Synonyms *Physinga acreensis Brieger & Bicalho 1978

References W3 Tropicos, Kew Monocot list , IPNI ; Rudolf Schlechter Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 9 513 - 576 Brieger, Maatsch and Senghas 1977 as Physinga acreensis drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 42 - 43 pg 2626 - 2762 Brieger 2001 as Physinga acreensis; Icones Orchidacearum 11 Plate 1184 Hagsater 2008 see recognition section; Icones Orchidacearum 18(1) plate 1833 Hagsater, Pfahl & Cisneros 2020 see recognition section

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