ORCHIDACEiE 



draceum, in medio paulo latissimum, intus prope apicem glan- 

 dulis binis pedicellatis praedituin. Gynostemiuni breve, crassum. 

 Rhizome stout, elongated, glabrous, about 5 mm. thick, in dried 

 material pale green, divided into distinct nodes usually 1.6- 

 2.8 cm. apart. Roots few^, rising from the nodes, fibrous, densely 

 brown lanuginose, simple or sparingly branched. Stem 19-20 cm. 

 tall, with a cluster of approximate leaves about at the middle. 

 Leaves five or six, ±8.9 cm. long, 4.8 cm. wide, ovate, rather 

 abruptly acute, below cuneate narrowed to the petiole, charta- 

 ceous, five or more nerved, with the mid-vein carinate beneath, 

 the lowermost blades somewhat distant and much smaller, the 

 uppermost much reduced and bract-like. Petioles short, winged. 

 Leaf sheaths ±8 mm. long, infundibuliform. Cauline sheath 

 on the upper portion of the stem, 1.5-2 cm. long, lanceolate, ap- 

 pressed. Spike dense, about 3.1 cm. long, 2.1 cm. wide. Bracts 

 about 9.5 mm. long, 2.8 mm. wide, linear-oblong, narrowed near 

 the apex to an obtuse point, one-nerved, longitudinally sulcate. 

 Perianth connivent, about 11.5 mm. long from the tip of the 

 spur to the apex of the dorsal sepal. Sepals lanceolate, narrowed 

 to a very broadly rounded, fleshy thickened apex, one-nerved. 

 Lateral sepals 5.5 mm. long, 2.5 mm. wide. Dorsal sepal about 

 5.4 mm. long, 2.5 mm. wide below the middle, forming a hood 

 with the petals. Petals about 5 mm. long, 2 mm. broad, similar 

 to the sepals but thinner, more or less abruptly narrowed to a 

 broadly rounded apex. Lip spurred; limb ±3.8 mm. long, 2.8 mm. 

 wide at the base, in natural position deltoid with the lateral mar- 

 gins strongly involute, obtuse. Ungulate when spread out, upper 

 surface finely papillose, near the base on either side provided with 

 a small, abbreviated, lamelliform appendage; spur 6-7 mm. long, 

 2.5-3 mm. in diameter at the middle, thick cylindric, anteriorly 

 somewhat inflated, provided within — above the middle — with 



[17] 



