In transferring Ornithidium Weberbauerianum to the 
genus Maxillaria, I find it advisable to choose a new epi- 
thet, as given above. 
As compared with the type description, a photograph 
of authentic material in the Berlin Herbarium (Weber- 
bauer 6936) distributed as the type, other specimens of 
this number and additional collections in the Ames Her- 
barium show certain discrepancies. 
The leaves are described as ligulate or broadly linear, 
acuminate and bilobed at the apex, with a maximum 
width of 1.8 em. However, in Weberbauer 6936 and in 
the other collections referable to this concept, the leaves 
vary from oblong-lanceolate to oblong-ovate and are 
sharply acute (never acuminate nor bilobed), and some 
of the leaves attain a width of 2.6 cm. 
Of even more importance, the type description cites 
the inflorescence as consisting of 3- to 4-flowered racemes 
—a character sharply at variance with the 1-flowered in- 
florescence of both Ornithidium and Maxillaria. How- 
ever, our specimens have 1-flowered (commonly fascicled ) 
inflorescences, in conformity with the requirements. 
This species appears to be limited to the Departments 
of Junin and Cuzco in Peru. 
Maxillaria cuzcoensis C. Schweinfurth sp. nov. 
Herba variabilis. Pseudobulbi approximati, valde com- 
planati, cylindracei, apice obliquo unifoliati. Folium pet- 
iolatum; lamina elliptico-oblonga vel anguste lanceolato- 
oblonga, acuta, basi cuneata, plusminusve coriacea; 
petiolus conduplicatus. Scapi numerosi, laterales, basales, 
uniflori, pedunculo vaginis separatis ventricosis ornato. 
Flos mediocris. Sepalum dorsale anguste lanceolato- 
oblongum, acutum, basi concavum, supra dorso carina- 
tum. Sepala lateralia oblique triangulari-oblonga, sepalo 
dorsali similia, mentum conspicuum formantia. Petala 
[ 268 ] 
