Barkeria fritz-halbingeriana Soto Arenas
Federico “Fritz” Halbinger’s Barkeria
An erect, subcaespitose deciduous herb with a rupicolous growth habit and reaching 120 cm. in height. Roots: thickened, terete, long, and forming massive accumulations with age. Stems: whitish, thickened, laterally compressed with 6-17 internodes but not terminating into well-defined pseudobulbs, 7-35 cm. in length. Older stems are covered with scarious, papery bracts while the newly developing stem is covered by imbricating folicaceous and non-foliaceous bracts. Leaves: 6-12 ensiform, coriaceous to subsucculent, greenish-purple in color, present only on the newly developing growth and connected to the tubular clasping stem bracts via an articulated joint. Inflorescence: terminal, erect raceme, on an elongated terete peduncle, 30-60 cm. in length, thin, and with up to 30 weakly-fragrant flowers. Flowers: Attractive but relatively small compared to the plant. The tepals are ascending, incurved, pale-pink while the lip and column are descending. Lip is pink with darker margins and a purple blotch at the apex. Keels white or very pale yellow with purple lines and a column greenish-white blushed with pink along the apical midline and with purple dots and lines on the column wings. Sepals are subequal, elliptic, acute, subapiculate, seven-nerves and convex. Petals more broadly elliptic than sepals, acute, reflexed at the apex and with 5 nerves. Lip fused basally to the column forming a shallow cuniculus at the apex of the ovary, entire, oblong to oblong ovate, apex truncate, subapiculate, margins pleated, faintly undulating and erect basally so as to clasp the column. Lateral margins are reflexed creating a reduplicate lip. The callus is comprised of two laminar, fleshy keels delimiting a narrow elliptic fovea. Where they converge, three raised longitudinal keels develop with the central one being the most prominent and reaching the apex of the lip. The winged column is straight and adpressed to the lip, subtrigonous in cross-section, dorsiventrally compressed and spatulate when viewed from above. The ventral side of the column is basally concave forming a nectary in conjunction with the lip. Clinandrium has three triangular teeth with the lateral ones projecting farther forward than the central one which is deflexed. Anther cap is yellow.