Stanhopea radiosa Lem. 1859 SUBGENUS Stanhopea SECTION Saccata

Photo by jean-luc and Stanhopea Blogspot

Another Flower

Photo by Bill Bergstrom

Another Flower Angle

Photo by Dick Hartley Foxdale Orchids

Plant in situ and blooming in Puerta Vallarta Mexico 7/1/03 600 meters Photo by Jay Pfahl

Fragrance LATE

Common Name The Radiating Stanhopea

Flower Size 3" [7.5 cm]

Found in the north Pacific coast of Nayarit, Jalisco and Oaxaca states of Mexico on rocks or trees in oak and pine-oak forests at elevations of 200 to 1500 meters as a medium sized, warm to cool growing epiphyte with ovoid, crowded, apically truncated, rugose pseudobulbs partially enveloped below by scarious sheaths becoming fibrous with age and carrying a single, apical, plicate, erect, elliptic, acute, gradually narrows below into the sulcate, slender petiolate leaf that blooms in the late spring and summer on a pendent, basal, to 10" [to 25 cm] long, 1 to 3 flowered inflorescence enveloped by scarious sheathing bracts and having ovate,inflated sheathing floral bracts and carrying fleshy, waxy, fragrant [cinnamon] flowers..

Often cited as a synonym of S sacatta, but differs in having a less saccate hypochile with a wider opening allowing a larger pollinator, also this species hypochile is squarer than S saccata and there is a broad tooth on the upperside of the epichile.


References W3 Tropicos, Kew Monocot list , IPNI ; Flora Novo-Galaciana Vol 16 Orchidaceae Mc Vaugh 1985; Rudolf Schlechter Die Orchideen Band 1C lieferung 37/38 pg 2309 - 2436 Brieger 1999; Caesiana Vol 22 Stanhopea Part 2 Jenny 2004 drawing/photo fide; AOS Bulletin Vol 81 #9 2012 photo fide; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018