Stelis irrasa Luer & R.Vásquez 2018 SECTION Stelis

TYPE Drawing by © Carl Luer and Selbyana 32(1,2): 60 Luer & Vasquez 2018


Common Name The Unshaven Stelis [referring to the sparse, short pubescence of the sepals]

Flower Size .24" [6 mm]

Found in La Paz department of Bolivia at elevations around 1550 meters as a just miniature to small sized, cool growing, caespitose epiphyte with erect, slender ramicauls enveloped by a close tubular sheath from near the middle and 2 to 3 more about the base and carrying a single, apical, erect, coriaceous, narrowly elliptical, acute, cuneate below into the petiolate base leaf that blooms in the early summer on 2 to 4, erect, through a spathe from a node below the apex of the ramicaul, peduncle .4 to 1" [1 to 2.5 cm] long, rachis .8 to 1.4" [2 to 3.5 cm] long, erect, congested, secund, simultaneously many flowered inflorescence with tubular, close, obtuse, shorter than the pedicel floral bracts and carrying light yellow-green flowers.

"This species is known from one collection on the road to the Alto Beni. With a few, congested racemes about half as long as the leaf, Stelis irrasa Luer & R.Vásquez is vegetatively similar to the widely distributed S. hylophila Rchb.f., but it differs with larger flowers and twice longer, non-recurved sepals with the lateral sepals antrorse that are sparsely and minutely pubescent. The single-veined petals and the lip are also similar, except that the truncate apex of the lip has a short, triangular apiculum." Luer & Vasquez 2018


References W3 Tropicos, Kew Monocot list , IPNI ;

* Selbyana 32(1,2): 60 Luer & Vasquez 2018

Selbyana 32(1,2): 143 Luer & Vasquez 2018 Drawing fide