Pleurothallis ezechiasi Hoehne 1946 SUBGENUS Effusae Luer 2000

Plant and Flowers

Photos of Pabstiella ezechiasi by © Wade Collier and FILOGENIA MOLECULAR E BIOGEOGRAFIA DE Pabstiella BRIEGER & SENGHAS (ORCHIDACEAE NICOLÁS GUTIÉRREZ MORALES 2019

Drawing Drawing by Pabst

Full shade

Common Name Ezechias' Plaurothallis []

Flower Size .2" [5 mm]

Found in the Atlantic rainforest of southeastern Brazil in primary forests on moss covered trunks and branches at elevations around 1400 meters as a miniature sized, cool growing, caespitose epiphyte with a short ramicaul carrying a single, apical, erect, dark green, ovate, obtuse, lanceolate to elliptic leaves that blooms in the late winter and earlier spring on an erect, arising from the apex of the ramicaul, 2.93" [7.3 cm] long, successively single, to 9 flowered inflorescence

"Similar to the newly named P hiliaensis 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 Pleurothallis grobyi {Barros (1983: 110)] in several botanical databases, nevertheless the placement of this species within the subgenus 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 Specklinia ezechiasi (Hoehne) Luer 2004

References W3 Tropicos, Kew Monocot list , IPNI ;

*Arq. Bot. Estado São Paulo, n.s., f.m., 2: 21 Hoehne 1946;

Orchidaceae Brasilensis Band 1 Pabst & Dungs 1975 drawing fide;

Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994 drawing/photo fide;

Icones Pleurothallidinarum Vol XXVI Pleurothallis subgenus Acianthera and Three Allied subgenera, A Second Century of new Species of Stelis of Ecuador, Epibator, Ophidion and Zootrophion Luer 2004 as Specklinia ezechiasi;

Icones Pleurothallidinarum Vol XXIX A Third Century of Stelis Systematics of Apoda-Prorepentia Luer 2007 as Pabstiella ezechiasi;

FILOGENIA MOLECULAR E BIOGEOGRAFIA DE Pabstiella BRIEGER & SENGHAS (ORCHIDACEAE NICOLÁS GUTIÉRREZ MORALES 2019 as Pabstiella ezechiasi photo fide;

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