Barkeria strophinx (Rchb. f.) Halb.
Common name: The Axle or Pivot Barkeria
Epidendrum strophinx (1876)
Barkeria naevosa subsp. strophinx (1974)
A caespitose, erect deciduous herb with an epiphytic habit that grows between 15-75 cm. Roots: flattened, gray. Stems: thin, fusiform, pedunculate (stalked), grayish-white, with 4-5 internodes, 2-25 cm. in length. Older stems are covered with scarious, papery bracts. Leaves: 2-6 linear-lanceolate, acuminate, distichous, subsucculent, present only on the newly developing growth and appressed to the stem via an articulated joint. Inflorescence: terminal, erect, frequently arching, panicle (rarely a raceme), from the new growth, on an elongated subterete, rather thin peduncle with 5-9 internodes covered by tubular bracts (scarious at anthesis), from 6.5-35 cm in length with 3-60 flowers arranged in a horizontal plane. Flowers: Attractive, resupinate, sweetly fragrant, 1.4-2.6 cm diameter spread, with the tepals straight and extended in the same plane and held over the descending lip. Color of the segments is variable in the population ranging from pure white to dark magenta with intense color saturation. Sepals are usually somewhat darker than the petals with darker venation evident. Lip is white, greyish-white or yellowish with magenta pigmentation over the raised veins and margins. Sepals are subequal, extended, lanceolate, acute-acuminate, with seven conspicuous parallel veins, incurved or flat with the margins reflexed making them concave. Petals are lanceolate, acuminate to obtuse, with five parallel vein, in the same plane as the dorsal sepal and positioned at a 45° angle to it. Both lip and column point down in their natural configuration. The lip is entire, ovate, acuminate, acute, basally cuneate, fused to the column, strongly concave with the basal margins raised and incurved, and the apex is extended or deflexed. Callus is a white, raised platform, deeply sulcate to form a fovea with three longitudinal rows of white or transparent warty or papillose veins that extend forward but do not reach the apex. The subtrigonous column is winged, short, pinkish or purple-red apically but green at the base, somewhat incurved, dorsiventrally flattened into a flabellate outline with a truncate but relatively wide apex with three teeth. The ventral surface of the column is convex and longitudinally sulcate. Anther is reddish and the same color as the apex of the column.