Pleurothallis hileiaensis [N.Gut., E.C.Smidt & Toscano] in ed. SUBGENUS Effusae Luer 2000

Comparison photo of P hileiaensis and P ezechiasi

LCDP

TYPE Photoand LCDP of P hileiaensis by © N. Gutierrez Morales/photo of P ezechiasi by © Wade Collier and Phytotaxa 518 (1) © 2021, Pabstiella hileiaensis (Orchidaceae Pleurothallidinae), a new species from the Atlantic Rainforest in southern Bahia, Brazil N.Gut., E.C.Smidt & Toscano 2021

Common Name The Hileia Pleurothallis [Hiléia Baiana, a name given to the area with megadiverse and highly endemic flora present in northern Espírito Santo and southern Bahia states]

Flower Size .12" [3 mm]

Found in southern Bahia state of Brazil in evergreen forests at elevations around 990 meters as a very mini-miniature sized, warm growing, caespitose epiphyte with terete, erect ramicauls with 2, loose, thin, membraneous, ribbed apically oblique, acute sheaths and carrying a single, apical, erect, coriaceous, elliptical-lanceolate, acute, apex minutely emarginate witha central mucron, cuneate below into the petiolate base leaf that blooms in the fall on a suberect to flexuous, arising from near the apex of the ramicaul through a annulus to 3.8" [9.5 cm] long, successively single, 4 to 5 flowered inflorescence with tubular, acuminate, much shorter than the pedicel floral bracts.

"Pleurothallis hileiaensis is morphologically similar to P. ezechiasi . The two species share the short ramicauls covered by two ribbed, membranaceous sheaths, with long racemes far surpassing the leaves, carrying successive, long pedicellate flowers with minutely pubescent sepals, the dorsal sepal oblong, somewhat convex, the three-lobed lip, truncate at the base with a pair of minute lobules at the corners, with a pair of longitudinal calli, and by the winged column with denticulated apex. Pabstiella hileiaensis can be distinguished from P. ezechiasi by the elliptical leaves (vs. obovate to ovoid), sepals yellow with claret to marron veins (vs. orange flowers with reddish veins), petals bigger in relation to the sepals, spatulate, strongly suffused with maroon, minutely cucullate at the apex (vs. obovate, completely orange, acute), the lip yellow spotted with claret to marron, oblong, verrucose at the disc, the lateral lobes high with two, thin, submarginal, papillose, longitudinal calli (vs. orange lip with reddish margins, slightly pandurate, thick in its basal half, with lower lateral lobes and two, thick, central, longitudinal calli), with the apex slightly reflexed and strongly papillose (vs. the apex straight and slightly puberulous). Pleurothallis ezechiasi has mistakenly been treated as a synonym of Specklinia grobyi (Bateman ex Lindley 1835: t. 1797) Barros (1983: 110) in several botanical databases, nevertheless the placement of this species within the section Effusae is proven by molecular and morphological evidence (Gutierrez Morales et al. 2021, Ponert et al. 2021)." N.Gut., E.C.Smidt & Toscano 2021.

Synonyms *Pabstiella hileiaensis N.Gut., E.C.Smidt & Toscano 2021

References W3 Tropicos, Kew Monocot list , IPNI ;

* Phytotaxa 518 (1) © 2021, Pabstiella hileiaensis (Orchidaceae Pleurothallidinae), a new species from the Atlantic Rainforest in southern Bahia, Brazil N.Gut., E.C.Smidt & Toscano 2021 Drawing/photo fide

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