Pleurothallis sousae [Silva & Campacci] in ed. SUBGENUS Effusae Luer 2000

Plant and Flower

TYPE Drawing

Photos/Drawing by Marcos Campacci

Full Shade Warm Winter

Common Name Sousa's Pleurothallis [Brazilian discoverer of species current]

Flower Size .38" [9.5 mm] long

Found in Espirito Santo state of Brazil in Atlantic rainforests at elevations around 700 meters as a mini-miniature sized, warm growing, caespitose epiphyte with an inconspicuous rhizome giving rise to terete ramicauls enveloped by persistent, tubular sheaths and carrying a single, green, subcoriaceous, elliptic-lanceolate, arched, with an evident central rib, retuse apically, attenuate below into the long petiolate base leaves that blooms mostly in the winter on a racemose, arising through a diminished spathe, peduncle cylindric, semi-erect, flexuous, longer than the leaves, rachis elongating, to 6" [15 cm] long, successively 1 to 2, few flowered inflorescnece with triangular, acute floral bracts.

This species is similar to P hians but the new species has a sharply trilobed lip, rhomboid petals, glabrous sepals and the lateral sepals fused into a concave synsepal. P hians has a triangular lip, dolabriform petals with a longitudinal purple stripe and the sepals are pubescent and the lateral sepals have stroingly convex edges.

Synonyms *Pabstiella sousae Silva & Campacci 2020

References W3 Tropicos, Kew Monocot list , IPNI ;

*Coletanea de Orquideas Brasileiras Novas Especies Vol 16 Campacci & Silva 2020 as Pabstiella itaguacuensis photo/drawing fide