NOMENCLATORIAL NOTES. VIII 
BY 
CHARLES SCHWEINFURTH 
Pleurothallis lancilabris (Reichb.f.) Schlechter 
var. oxyglossa (Schltr. ) C.Schweinfurth comb. nov. 
Pleurothallis ovwyglossa Schlechter in Fedde Repert. 
10 (1912) 354. . 
Pleurothallis Schulzeana Schlechter in Beihefte Bot. 
Centralbl. 86, Abt. 2 (1918) 396. 
Pleurothallis oxyglossa differs from the older P.lan- 
cilabris in having a usually strongly fractiflex rachis to- 
gether with more elongate-acuminate floral segments. 
These differences, however, are not always well-marked, 
certain intergrades being evident. The differences are em- 
bodied in the following varietal diagnosis : 
Haec varietas a specie rhachide plus minusve valde 
fractiflexa atque perianthii segmentis longe acuminatis 
differt. 
Moreover, it seems clear from a careful study of co- 
pious Central American material, as well as from the type 
descriptions and drawings of the types made under the 
supervision of Dr.Schlechter that the Costa Rican Pleu- 
rothallis Schulzeana is conspecific with the Guatemalan 
P.oxvyglossa, the only variation being inconsequential 
differences in measurements. 
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