ORCHIDACE^ 



que angustata, acuminata, coriacea, supra nitentia, subtus usque 

 ad novem nervis praedita. Petiolus brevis, indistinctus. Inflores- 

 centia hysterantha, Pedunculus folia multo excedens, erectus, 

 rigidus. Rachis erecta, rigida. Bracteae plerumque deciduae ; brac- 

 tea terminalis erecta, rigida, tubulata, convoluta. Flores succe- 

 danei, magni, spectabiles, glabri. Sepala basi gibboso-saccata. 

 Sepala lateralia oblongo-lanceolata, cymbiformia, longe acumi- 

 nata, complicato-mucronata, paulo falcata, carinata. Sepalum 

 dorsale lanceolatum, leviter complicato-mucronatum, ecarina- 

 tum. Petala angustissime linearia, acuta. Labellum in circuitu 

 ovatum, trilobatum; lobi laterales erecti, medium labelli paulo 

 excedentes, parte libera oblongo-rotundata ; lobus medius lanceo- 

 lato-ovatus, apice rotundatus, plus minusve mucronatus, mar- 

 ginibus lateralibus revolutis, parte laterali papillis approximatis 

 parallelis ornata ; carinae duae, altae, simplices ad partem anteri- 

 orem lobi medii extendunt; carina brevissima similis inter later- 

 ales interposita, e basi fere ad medium hypochilii decurrit. Gyno- 

 stemium lobis lateralibus subaequale, arcuatum, e parte inferiore 

 sensim alatum ; ala rotundato-truncata. 



Rhizome thick, woody, creeping, ±8 mm. in diameter. Roots 

 stout, rather numerous, subsimple, up to 3 mm. in diameter near 

 the rhizome. Pseudobulbs 20-28 cm. long, 5-8.5 mm. wide a 

 little above the base where broadest, very nan'owly cylindric and 

 stem-like, diphyllous, clothed at the base with one or two linear 

 or oblong, thin, evanescent sheaths. Leaves about 18 cm. long, 

 5.5 cm. wide, subopposite, narrowly elliptic, from the middle 

 narrowed to both ends, sharply acuminate, coriaceous, shining 

 above, many-nerved, with five to nine nerves prominent beneath. 

 Petiole short, indistinct, about 2.2 cm. long. Inflorescence hys- 

 teranthous. Peduncle rising between the leaves, rigid, erect, por- 

 tion below the inflorescence 8.5-16 cm. long. Rachis 8-13.5 cm. 



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