Stelis robertoi Luer 2018 SECTION Stelis

TYPE Drawing by © Carl Luer and Selbyana 32(1,2): 97 Luer & Vasquez 2018


Common Name Roberto's Stelis [Dedicated to the late Roberto Vásquez Chávez, foremost authority of Bolivian Cactaceae and Orchidaceae, co-collector of almost all the new species of Stelis published in 2018]

Flower Size .24" [6 mm]

Found in La Paz department of Bolivia at elevations around 1800 meters as a miniature sized, cool growing, densely ascending-repent epiphyte with erect, relatively stout ramicauls enveloped by a tubular sheath below the middle and 2 others about the base and carrying a single, apical, erect, coriaceous, elliptical, acute, cuneate below into the slender petiolate base leaf that blooms in the early summer on an erect, arising through a slender spathe from a node at the apex of the ramicaul, peduncle .8 to 1.2" [2 to 3 cm] long, rachis 2 to 3.2" [5 to 8 cm] long, erect, strict, sublax, subdistichous, mostly simultaneously many flowered inflorescence with oblique infundibular, shorter than the ovary floral bracts and carrying yellow flowers.

"This large species is characterized by a stout, densely ascending-repent rhizome. The ascending ramicauls bear long-petiolate, elliptical leaves that are far surpassed by a many flowered raceme of gaping, yellow flowers with broadly rounded, antrorse lateral sepals. The lip with a forked callus descending from the bar." Luer & Vasquez 2018


References W3 Tropicos, Kew Monocot list , IPNI ;

* Selbyana 32(1,2): 97 Luer & Vasquez 2018

Selbyana 32(1,2): 155 Luer & Vasquez 2018 Drawing fide;