NEW OR NOTEWORTHY ORCHIDS 
Schlechter’s conclusion. It seemed to me that Powell’s 
specimens did not agree in the aspect of the flowers with the 
colored sketch in the Reichenbachian Herbarium. The 
posture of the sepals, their coloration and their relative length 
did not give the impression of being similar to the species 
which Reichenbach had attempted to describe from a draw¬ 
ing. Furthermore, in the light of Reichenbach’s amplified 
description, the petals and labellum of Powell’s specimens 
seemed to be quite different from those of M. Livingstoneana. 
Very recently I have been able to make exhaustive studies of 
the species through herbarium material and specimens pre¬ 
served in alcohol. These studies have substantiated Dr. 
Schlechter’s conclusion, and indicate that the water-color 
sketch of the type is simply a record of one of the extremes 
of variation to which Masdevallia Livingstoneana is subject. 
The accompanying illustration has been prepared to 
exhibit the range of variation that characterizes the flowers 
of Masdevallia Livingstoneana. The sketches in the lower 
right-hand corner were drawn with the aid of the camera- 
lucida from material collected and preserved in alcohol by 
Mr. Powell. In the upper right-hand corner a portion of the 
colored sketch, which I have designated as the type, has been 
reproduced from a photograph, the salient details having 
been drawn with the camera-lucida. The analytical draw¬ 
ings of the petal, labellum and column were made from the 
flower marked a. The flower marked b represents Powell’s 
No. 223, which is representative of the form which has been 
called Masdevallia panamensis. With the exception of the 
analytical drawings, all figures are natural size. The la¬ 
bellum petals and column remain fairly constant in out¬ 
line and structure, notwithstanding the variations notice¬ 
able in the calyx. [Fig. 2.] 
Stelis crescentiicola Schltr. in Fedde Repert. 16 
(1920) 442. 
Stelis flexuosa Kranzl. in Engl. Rot. Jahrb. 26 (1899) 
450, non Lindl. Stelis Isthmi Schltr. In Fedde Repert. 
Beihefte 17 (1922) 17. Stelis praemorsa Schltr. in Fedde 
Repert. Beihefte 17 (1922) 17. 
11 
