Dressleria williamsiana H.G.Hills 2012 Photos by Gustavo Romero and Taxonomic Revision of Dressleria [Orchidaceae, Catasetinae] Harold Hills Website

Fragrance Deep Shade coolSummer

Common Name William's Dressleria {American Norris H Williams Botanist current]

Flower Size 2" [5 cm]

Found in northwestern Ecuador at elevations around 1400 to 1500 meters as a medium sized, cool growing epiphyte with fleshy, fusiform-cylindric pseudobulbs enveloped by leaf sheath bases carrying oblong-lanceolate, acute, persistent, alternate, distichous, prominently veined abaxially leaves that blooms in the summer on a basal, arching, 14" [35 cm] long, loosely several flowered inflorescence carrying non-resupinate, greenish white becoming yellow with age, strongly fragrant flowers

"Dressleria williamsiana is most similar to D. bennettii but differs by the location and the shape of the callus. In D. williamsiana the callus is tongue like extending from the tooth of the transverse narrow opening of the lip to the apex of the lip unlike the triangular callus of D. bennettii. Callus on the sides of the opening not prominent as with D. bennettii. The presence of the tonguelike callus and narrow transverse opening distinguishes D. williamsiana from D. fragrans. " Hills 2012


References W3 Tropicos, Kew Monocot list , IPNI ; *Phytoneuron 2012 103 1-5 HG Hills & M H Weber Dressler morenoi [Orchidaceae, Catasetinae] A new species from Colombia ISSN 2153 733x