The range of M7. auropurpurea consequently extends 
from Colombia, through Ecuador to Bolivia. 
Stelis Endresii Reichenbach filius in Gard. Chron. 
(1870) 18738. 
Stelis parvibracteata Ames in Orchidaceae 7 (1922) 
131. 
Stelis glandulosa Ames in Sched. Orch. 8 (Jan. 80, 
1928) 3. 
Stelis propinqua Ames in Sched. Orch. 6 (Nov. 3, 
1923) 55. 
Stelis praesecta Schlechter in Fedde Repert. Beihefte 
19 (Nov. 25, 1928) 175. 
Stelis violascens Schlechter in Fedde Repert. Beihefte 
19 (Nov. 25, 1928) 176. 
Stelis Huebnert Schlechter in Beihefte Bot. Centralbl. 
42, Abt. 2 (1925) 88. 
Stelis Endres appears to be a widely variable species 
which extends through Middle America from Mexico 
and Guatemala to Panama, and in South America in 
Brazil and Peru. Its variability appears in vegetative size 
(plants up to about 24 cm. high), in the form of the leaf 
which ranges from elliptic-ligulate with a distinct petiole 
to oblanceolate with a gradually narrowed base, and in 
the size of the flowers. Of these the sepals appear to be 
either equal or slightly unequal in size and to be more 
or less distinctly papillose within. Sometimes the flowers 
are pinkish, as in S. parvibracteata (instead of the typical 
shade of greenish or whitish). The sepals are often con- 
spicuously glandular within, as in S. glandulosa. Some- 
times the flowers appear to be larger than usual with the 
dorsal sepal 5-nerved, asin S.propinqua. Stelis praesecta 
and S.violascens are described as having glabrous flowers 
which are wine-red or red-violet. The South American 
S. Huebneri has a leaf that is oblanceolate and gradually 
[ 35 ] 
