Stelis heterosepala Schltr. 1929 SECTION Humboldtia

Drawing by Carl Luer and Selbyana 32(1,2): 56 Luer & Vasquez 2018

Common Name The Different Sepal Stelis [referring to the synsepal]

Flower Size .12" [3 mm]

Found in La Paz department of Bolivia at elevations around 1200 to 1970 meters as a mini-miniature sized, cool growing, densely caespitose epiphyte with erect, slender ramicauls enveloped by a tubular sheath below the middle and 1 to 2 others at the base and carrying a single, apical, erect, coriaceous, narrowly elliptical, obtuse, cuneate below into the petiolate base leaf that blooms in the spring and summer on an erect, arising through a slender spathe from a node near the apex of the ramicaul, peduncle .4 to 1.2" [1 to 3 cm] long, rachis 4.4 to 6" [11 to 15 cm] long, erect, strict, secund, congested, successively few to several, many flowered inflorescence with oblique, acute, longer than the ovary floral bracts and carrying light green flowers.

"This large, caespitose species is characterized by slender ramicauls with elliptical leaves, and a long, strict, secund, successively many-flowered raceme, often with most flowers forming capsules below, while buds are maturing above. The dorsal sepal is three-veined with an accessory pair, the lateral veins being incomplete and inconstant in the same raceme, and spread nearly 180 from a shallowly concave, bifid synsepal. The lip is short, broadly triangular and obtuse with the bar protruding, and with an enlarged callus on the dorsum." Luer & Vasquez 2018


References W3 Tropicos, Kew Monocot list , IPNI ;

*Repert. Spec. Nov. Regni Veg. 27: 42 Schlechter 1929;

Selbyana 32(1,2): 56 Luer & Vasquez 2018

Selbyana 32(1,2): 142 Luer & Vasquez 2018 Drawing fide