Spiranthes jouyana R.González & Lizb.Hern. 2013

TYPE drawing by © Roberto Gonzales Tamayo and Ibugana 5: 53 R.González & Lizb.Hern. 2013

MID

Common Name Jouy's Spiralis [Alain Jouy orchid Enthusiast current]

Flower Size .2" [5 mm]

Found in Jalisco state of Mexico at elevations of 1400 to 2200 meters as a small to just medium sized, cool to cold growing terrestrial with 1 to 4, coriaaceous, erect to spreading, cuneate, elliptic-lanceolate to ensiform, carinate leaves that blooms in the mid summer on an erect, terminal, pubescent, peduncle 8 to 11.2" [20 to 28 cm] long, filiform, provided with 3 or so, clasping sheathing bracts, rachis [4 to 6.5 cm] long, dense, helicoidal, 14 to 35 flowered inflorescence with, cancave, oblong-triangular, acuminate, longer than the ovary floral bractrs and carrying white, fragrant flowers.

"Spiranthes jouyana is related to Spiranthes ovalis , but differs in the rectilinear leaves or arched, lanceolate, obtuse, larger flowers; a triangular dorsal sepal, a longer lip; epichile subsquare, slightly longer and slightly narrower than the mesochile. Spiranthes ovalis has oblong-elliptic, oblanceolate to linear-lanceolate, obtuse to subacute; smaller flowers; a lanceolate dorsal sepal: a shorter labellum, , with a conspicuous epichile, thin, well-curved basal protrusions. Spiranthes jouyana could be confused with Spiranthes nebulorum but it has a labellum that is strongly arched at the base; the hypochile is cuneate; the mesochile is oblate , suborbicular-eliptic, almost equilongated to the epichile, which is oblong and much narrower; the protuberances are located forward of the margin, oblique, conical; the mesochile and the conspicuous epichile, are separated by breasts and the stigma is truncated, the very shallow breast, inconspicuous. It is distinguished from Spiranthes vernalis the longer leaves, up to 12" [30 cm] long or more and up to .4" [1 cm[] wide, the sepals are rectilinear; The epichile is narrower than the mesochile and the protuberances at the base of the labellum are narrower, sharp and arched. It is separated from Spiranthes torta by the longer leaves, the flowers are not very minor and the protuberances of the labellum are found in the tissue, in front of the base. Spiranthes jouyana is distinguished from Spiranthes graminea by the claviform ovary (non-fusiform or cylindrical); the oblong-ovate (non-oblong-subsquare) labellum, the rounded mesochile (non-cuneate), approximately equilongated to the epichile (not shorter); the protrusions near the hypochilus (not far away) and the wider stigma below half (not above it)." R.González & Lizb.Hern. 2013

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ;

* Ibugana 5: 53 R.González & Lizb.Hern. 2013 Drawing fide

--------------------------------------------------------------------------------------

-------------------------------------------------------------------------------------------------------------------------------------------------