ORCHIDACE^ 



of the lowermost leaf and about 5 mm. in diameter above the 

 swollen base, in dried specimens plurisulcate. Leaves two, alter- 

 nate, approximate, one much larger than the other, 3-7.5 cm. 

 long, 1.4-4 cm. wide, elliptic-ovate, membranaceous, acute, 

 contracted into a broad, abbreviated, sulcate petiole. Peduncle 

 elongated, winged, 17-28 cm. long, longitudinally sulcate, in 

 dried specimens ±2 mm. in diameter, ebracteate up to the in- 

 florescence. Raceme many flowered, contracted, 8-12 mm. long, 

 appearing umbellate. Bracts minute, crowded, about 1 mm. 

 long, triangular, acute, much shorter than the slender pedicels 

 of the small, greenish purple flowers. Pedicels with the ovary 

 ±6 mm. long, spreading. Lateral sepals 3 mm. long, about 1 mm. 

 wide, narrowly elliptical, obtuse, convex, obliquely deflexed. 

 Dorsal sepal similar, 3 mm. long, obtuse, erect, convex. Petals 

 2 mm. long, hnear, obtuse, coiled. Labellum 2.5 mm. long, about 

 1 mm. wide, entire, in outhne elliptic-ovate, obtuse, below the 

 middle concave and traversed longitudinally by a thickened 

 keel, apical half fleshy with slightly deflexed margins; at the 

 base the longitudinal keel divides into crescentiform calli. Col- 

 umn minute with an obtuse lobe on each side near the summit. 

 Anther much broader than long, the cells distinct and semiovate. 

 Closely related to Malaxis Adolphii {Schltr.) Ames comb, 

 nov. {Microstylis Adolphii Schltr. in Beihefte Bot. Centralbl. 36, 

 Abt. 2 (1918) 380), from which it differs in having longer pe- 

 duncles, much larger leaves and smaller flowers with a different 

 labellum. 3Ialaocis fastigiata (Reichb. f.) Ktze. is vegetatively a 

 close ally of M. Leonardii, but is separable in having an elon- 

 gated lanceolate labellum. 



Haiti, vicinity of Furcy, E. C. Leonard 4.730, May 26-June 15, 1920. 

 Flowers greenish purple. Wet rocks in thicket, very scarce. 1300 meters 

 altitude. (Type in U. S. Nat. Herb. No. 1077246.) 



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