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Oncidium regentii Regent's Oncidium

 

Regent's Oncidium, Oncidium regentii

http://www.orchidspecies.com/

Oncidium regentii V.P.Castro & G.F.Carr 2005 SECTION Barbata Photo courtesy of Dalton Holland Baptista and Orchidstudium

Part shade Hot to Warm Spring

Common Name Regent's Oncidium [Brazilian Original Collector of species current]

Flower Size .8" [2 cm]

Found in Bahia and Espiritu Santo Brazil in montane rainforests at elevations of 300 to 400 meters as a miniature sized, hot to warm growing epiphyte with elliptic-ellongate, laterally compressed, laterally grooved pseudobulbs enveloped basally by leafless sheaths and carrying a single, apical, linear-lanceolate, conduplicate, acute, gradually narrows below into the conduplicate base leaf that blooms in the spring on a basal, slender, racemose, 4.8 to 5.2" [12 to 13 cm] long, successively 3 to 5 flowered inflorescence.

Very careful here as there is also a O x regentii [Baptistonia x regentii] with the same dates of publication that is a natural hybrid between O silvana and o gutfreundiana.

This speceis is related closely to O uniflorum and O longipes but differs in the plant larger than 20 cm tall, the inflorescence that is just short of the length of the leaves, the large flower that is 3.5 cm from dorsal sepal to lateral sepal, the lip that is half the size of the lateral sepals, the lip midlobe is small in comparison to the tepals, very small lateral lobes of the lip, a triangular isthmus with a reflexed and slightly denticulate margin, auricles that are very denticulate around the stigma, a column that is 5mm or less, a small stigma and a tabula infrastigmatica that is longer than wide.

Synonyms Kleberiella regentii (V.P.Castro & G.F.Carr) V.P.Castro & Cath. 2006

 

 

 

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