ORCHIDACEiE 



flexuous, about 2-3 mm. thick, naked at flowering time but 

 showing traces of scarious sheaths, more or less sulcate and 

 smooth in the dried specimen. Roots fibrous, flexuous, more or 

 less fascicled, numerous under the pseudobulb, subrigid, more 

 or less longitudinally sulcate, about .7 mm. thick. Pseudobulbs 

 minute, about 1-2 mm. high, 3-5 mm. wide at the base, thick- 

 cylindric, monophyllous, yellow, 4.5 to over 9 cm. distant. Leaf 

 about 8 cm. long, 2 cm. wide (rarely 10.7 cm. long, 1.7 cm. 

 wide; the immature blades very small), oblong to elliptic, broadly 

 rounded above, rather abruptly cuneate-narrowed to the petiole, 

 thick and coriaceous but pellucid in the dried specimen, appar- 

 ently fleshy in the living plant, the margins revolute, many- 

 nerved with the mid-nerve more or less sulcate above and cari- 

 nate beneath. Petiole stout, sulcate, variable in length, 1.6-3 cm. 

 long. Scape approximate to the pseudobulb, much exceeding the 

 leaves, about 19 cm. long (up to 23 cm. long), suberect to gently 

 flexuous or arcuate, provided with several tubular membrana- 

 ceous sheaths. Raceme loose, apparently secund, about twenty- 

 flowered. Bracts of the inflorescence up to 7.5 mm. long, nar- 

 rowly lanceolate, long acuminate, concave, one-nerved, surpass- 

 ing the pedicellate ovary, ascending-spreading. FloM^ers nodding 

 in development, segments slightly spreading, perianth pellucid 

 in the dried plant. Lateral sepals about 7-8 mm. long, 3 mm. 

 wide, triangular-lanceolate, gently falcate, sulcate, strongly com- 

 plicate-mucronate, conspicuously carinate especially at the apex, 

 forming a saccate mentum, one- or indistinctly three-nerved. 

 Dorsal sepal about 6-7 mm. long, 2.3-2.7 mm. wide above the 

 middle, oblanceolate-oblong, complicate-acute, dorsally carinate 

 at the apex, strongly angulate-sulcate, one- or indistinctly three- 

 nerved. Petals much smaller, about 3.3 mm. long, 1 mm. broad 

 above the middle, oblanceolate-linear, very slightly falcate, acute 



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