ORCHIDACE^ 



matus, vaginis nonnullis tubularibus vestitus. Bracteae inflores- 

 centiae lanceolato-attenuatae, patentes. Racemus laxissimus, 

 floribus saepissime oppositis. Segmenta perianthii late patentia, 

 in sicco irregulariter crispata. Sepala lanceolata apicibus longis- 

 sime caudatis. Petala similia sed minora. Labellum valde decur- 

 vum, anguste lanceolatum, in medio carinis duabus e prope basim 

 ad partem anteriorem decurrentibus. Gynostemium breve, eras- 

 sum, tridentatum, dente medio late triangulari et brachiis binis 

 triangularibus subulatis. Pes arcuatus. 



Plant graceful. Rhizome about 6 mm. in diameter, creeping, 

 thick, terete, apparently flexuous, woody, closely invested by sca- 

 rious sheaths. Roots rather numerous, fibrous, flexuous, freely 

 branched, longitudinally sulcate, pubescent or glabrous, about 

 1 mm. thick. Pseudobulbs about 1.5 cm. in height, thick-cyhn- 

 dric or narrowly pyriform, remote, monophyllous, yellowish, 

 striate or sulcate in the dried specimen. Leaf 16-25 cm. long, 

 1.85-4 cm. wide, linear to narrowly oblong, more or less oblique 

 and falcate, acute, gradually narrowed to the long petiole, sub- 

 coriaceous, many-nerved with the mid-nerve sharply sulcate 

 above and carinate beneath. Petiole up to 15.5 cm. long, very 

 variable in size, deeply sulcate. Scape ±50 cm. long, approxi- 

 mate to the pseudobulb, arcuate from a more or less decumbent 

 base, clothed with several loose tubular scarious sheaths which 

 are imbricating below and subremote above, deeply striate in the 

 dried specimen. Raceme very loose and disjointed with remote 

 and usually opposite flowers. Bracts of the inflorescence up to 

 1.5 cm. long, 2.5 mm. wide at the base, lance-attenuate, spread- 

 ing. Flowers with widely spreading segments which are irregu- 

 larly crispate in the dried plant. Lateral sepals about 2.5 cm. 

 long, 3.8 mm. wide at the base, lanceolate, with very long cau- 

 date apices formed of the conduplicate halves of the upper por- 



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