bard & Schweinfurth, comb. nov. 
Restrepia prorepens Reichenbach filius in Gard. 
Chron. n.s. 7 (1877) 810. 
Barbosclla prorepens Schlechter in Fedde Repert. 
15 (1918) 263. 
This species has not heretofore been placed in Pleu- 
rothallis and its transfer to that genus makes anew com- 
bination necessary. 
Malaxis Parthonii Morr. var. denticulata 
(Reichbf.) Ames, Hubbard & Schweinfurth, comb. nov. 
Microstylis Parthoni Reichb.f. var. dentieulata 
Reichenbach filius, Beitr. Orch. Centr.-Am. (1866) 
100, 
Microstylis Werckler Schlechter in Beihette Bot. 
Centralbl. 86, Abt. 2 (1918) 382. 
Malavis Werehler Ames in Proc. Biol. Soe. Wash. 
35 (1922) 85. 
The transfer of this variety to Malaxis has not been 
made previously. 
Hexisea Amparoana (Sci/tr.) Ames, Hubbard 
& Schwemfurth, comb, nov. 
Costaricaea A mparoana Schlechter in Fedde Repert. 
Beihefte 19 (1923) 381. 
We consider the genus Costaricaeca Schltr. to be con- 
generic with Heaisea Lindl. The combination for this 
species under Hexisea has not been made previously. 
Scaphyglottis corallorrhiza (nes) Ames, 
Hubbard & Schwemnfurth, comb. nov. 
Pachystele corallorrhiza Ames in Sched. Orch. 9 
(1925) 45. 
We consider the genus Pachystele Schltr. to be con- 
generic with Scaphyglottis Poepp. & Endl. The combi- 
nation for this species under Scaphyglottis has not been 
[ 40 | 
