THE GENUS PAPPERITZIA 
BY 
Louis O. WILLIAMS 
In 1844, H.G. Reichenbach described Leochilus Lei- 
boldi from specimens received in liquid from Leibold. 
He realized that the species was different from Leochilus 
but at that time did not think that it was distinct enough 
to warrant the erection of a new genus. However, in 
1852, Reichenbach described the genus Papperitzia to 
include this species. Later, in 1854, in his Xenia Orchid- 
acea, he redescribed it and published a figure. The figure 
is so badly drawn that it is misleading. 
The characters of Papperitzia were so obscure, how- 
ever, that Bentham included it among his uncertain gen- 
era in the Genera Plantarum. 
In Reichenbach’s herbarium there are two specimens 
of Papperitzia, the original one which was collected by 
Leibold and a specimen collected by Kienast. Dr. Ru- 
dolph Schlechter had one specimen in his herbarium col- 
lected by H.Schenck. In the Ames Herbarium there are 
two specimens, one collected by Purpus and the other 
collected by Nagel & Juan G. [onzdles]. The latter spec- 
imen is also represented by flowers preserved in liquid. 
‘The study of this more adequate material has made 
possible a fuller understanding of the genus, and conse- 
quently, it seems advisable to present an amplified de- 
scription. 
Papperitzia Reichenbach filius in Bot. Zeit. 10 (1852) 
670; Xenia Orch. 1 (1858) 287, t. 100, figs. I, 1—5. 
Small epiphytic herbs. Stems pseudobulbose. Pseudo- 
bulbs small, ancipitous, unifoliate. Leaves coriaceous, 
lateral under the pseudobulbs (usually one pair) and ar- 
ticulated, and also with a single leaf on the summit of 
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