ORCHIDACE^ 



matus, folio brevior, vaginis perpaucis tubularibus vestitus. 

 Racemus laxus, miiltiflorus. Bracteae inflorescentiae ovato- 

 lanceolatae, acutae, concavae. Flores parvi, in sicco pellucidi. 

 Sepala lateralia triangulari-laiiceolata, falcata, obliqua, compli- 

 cato-mucronata, mentum profunde saccatum formantia. Se- 

 palum dorsale oblongo-lanceolatum, complicato-mucronatum, 

 valde concavum vel cucuUatum. Petala multo minora, rutae- 

 formia vel rhombiformia, obtusa vel subacuta. Labellum in 

 positu naturali medio abrupte reflexum, dimidio inferiore lato 

 membranaceo lateribus erecto-conduplicatis, parte anteriore 

 anguste oblonga crassiore obtusa fimbriata; lamina expansa in 

 circuitu deltoidea, hypochilio suborbiculari. Gynostemium bra- 

 chiis binis subquadrato-triangularibus apice subulatis instruc- 

 tum. Pes unciformis, parte inferiore incrassata. 



Plant slender. Rhizome creeping, woody, conspicuously sul- 

 cate in the dried specimen, concealed by the fibrous remains of 

 scarious sheaths, about 2.5 mm. thick. Roots slender, fibrous, 

 flexuous, rather numerous, more or less longitudinally sulcate, 

 about .75 mm. thick. Pseudobulbs minute, about 2 mm. high 

 and wide below, cylindric, striate-rugose in the dried specimen, 

 monophyllous, at intervals of about 5-7 mm. Leaves erect, 

 ±14 cm. long, 1.2 cm. broad, narrowly lanceolate to linear-lance- 

 olate, sometimes very slightly oblique and falcate, long acumi- 

 nate with an acute apex, gradually narrowed to the petiole, cori- 

 aceous, the mid-nerve indistinctly sulcate or invisible above and 

 conspicuously carinate beneath. Petiole 2-3.5 cm. long, sulcate, 

 enwi'apped — together with the base of the scape — in a scari- 

 ous sheath that becomes fibrous. Scape ±13 cm. long, approxi- 

 mate to the pseudobulb, suberect to gently arcuate or flexuous, 

 shorter than the leaf, provided with a very few loose tubular sca- 

 rious sheaths which are short and imbricating below and remote 



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