Pleurothallis niesseniae Luer 2001 SUBGENUS Elongatia Luer 1986

Photo by © Henry Oakley.

TYPE Drawing

TYPE Drawing by © Carl Luer and The Epidendra Website

Full Shade

Common Name Niessen's Pleurothallis [Andrea Niessen Colombian Nursery Owner Current]

Flower Size .2" [5 mm]

Found in Valle de Cauca department of Colombia without locality although said to be from near Cali as a small sized, caespitose epiphyte with erect, thin ramicauls enveloped by a large tubular bract below the center and 2 at the base and carrying a single, apical, erect, coriaceous, lanceolate, acute, narrowing below into the cuneat, petiolate base leaf that blooms in the spring arising from just beneath the ramicauls apex, erect, peduncle to 2 to 2.8" [5 to 7 cm] long, to 6" [15 cm] long, lax, racemose, few flowered inflorescence with tubular, shorter than the pedicel floral bracts and .8 to 1.2" [2 to 3 cm] between each flower.

"The species is distinguished by the long, slender ramicauls; a narrowly elliptical, petiolate leaf; and an elongated, very distantly few-flowered raceme. The flowers are small with thick, obtuse sepals villous within. The petals are obcuneate. The lip, smaller than the column, is bicarinate above the middle with the apex verrucose." Luer 2001

Synonyms Effusiella niesseniae (Luer) Luer 2007; Specklinia niesseniae (Luer) Luer 2004; Stelis niesseniae (Luer) Karremans 2019

References W3 Tropicos, Kew Monocot list , IPNI ;

* Orquideología Vol 22 #1 pg 59 Luer 2001 drawing 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 niesseniae;

Icones Pleurothallidinarum Vol XXIX A Third Century of Stelis of Ecuador Systematics of Apoda-Prorepentia Luer 2007 as Effusiella niesseniae;

Phytotaxa 406: 265 Karremans 2019 as Stelis niessenise;