Panarica tinukiana [Bogarín & Karremans] in ed.

Photo by © Diego Bogarin and Prosthechea tinukiana sp. nov. (Orchidaceae: Laeliinae): an update of theProsthechea prismatocarpa complex

Common Name The Cerro Tinuk Panarica

Flower Size 3" [7.5 cm]

Found in Puntarenas province ofCosta Rica in dwarf elfin windswept paramo at elevations around 2450 meters as a medium sized, cold growing lithophyte or terrestrial with an elongate rhizome enveloped by brown bracts and giving rise to pyriform, ovoid, laterally complanate, elongate pseudobulbs carrying 2, apical, oblong-elliptic, coriaceous, conduplicate, acute, retuse, narrowing below into the conduplicate, subsessile base leaves that blooms in the spring on an erect, terminal, racemose, arising through a papery spathe at the apex of the pseudobulb, to 6.8" [17 cm] long, overall, rachis to 2.4" [6 cm] long, to 9 flowered inflorescence

"The species is similar to Panarica ionocentra ; it differs mainly in the inflorescence that is developed from the penultimate mature pseudobulb (rather than developed from the youngest pseudobulb). Additionally, the purple spotted sepals and petals (rather than immaculate); the cordate, acute lip (rather than cordate-sagittate, acuminate) ; the disc with two long, narrow keels (shorter, thickened); the stigmatic arms of the column, which are convergent, rounded (rather than parallel, acute); and the narrow stigma (rather than wider) suggest that this is a completely different species. It shares the “tardiflorous” condition of the inflorescence with Panarica brassavolae [Rchb.f] Withner & Harding 2004. From P. brassavolae the new species can be distinguished by the presence of two lateral lobes of the lip (rather than without the basal lobules) and the spotted sepals and petals (rather than immaculate) . From P. tardiflora it is readily distinguished by the elongate rhizome and the cordate lip of more than 3 cm long (rather than the short, congested rhizome and the obovate-subpandurate lip of less than 2 cm long). The other related species, !Panarica prismatocarpa and Panarica neglecta , have a similar floral architecture, but they differ in the smaller flowers with tepals less than .8" [2 cm] long (vs. more than 1.4" [3.5 cm] long); the triangular, narrower midlobe of the lip to .36" [.9 cm] (vs. cordate, wider to .48" [1.2 cm)]; the sepals and petals mostly stained with purple blotches (vs. sparsely purple freckles); and the shorter column, .36 to .4" [.9 to 1.0 cm] long (vs. .56" [1.4 cm] long). Bogarín & Karremans 2015

Synonyms *Prosthechea tinukiana Bogarín & Karremans 2015

References W3 Tropicos, Kew Monocot list , IPNI ;

* Turkish Journal of Botany 39(3) · February Bogarin & Karremans 2015 drawing/photo fide;

AOS Bulletin Vol 86 #8 2017 photo fide;

Vanishing Beauty, Native Costa Rican Orchids Vol 2 Lacaena to Pteroglossa Pupulin 2020 as Prosthechea tinakiana photo fide

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