348 ^. ORCHIDEX. 
Perianthium ringens, subcarnosum. Sepala oblonga, postico 
unciali, lateralia quam maxime oblique, cum pede columne 
elongato et basi inter se coalita, albida, apices versus et pre- 
sertim intus rubro-purpureo maculata. 
Petala concoloria, concava, longitudine sepala postica cui 
supposita sunt, lanceolato obovata. 
bellum cum pede columna longissimo continuum, longe 
unguiculatum, ungue unciali, lineari-concavo, lutescente, 
pallide rubro maculato linealoque. 
Lamina 3-loba, lobis lateralibus | subparallelogrammicis 
antice productis, albis, intermedio linguiforme lutescente de- 
flexo exsertaque; 5-cristata, cristis postice valde clavatis, in- 
termedius confluentibus terminantibusque ; centrali in. lobum 
producte sed hic parum prominula et intra apicem evanida. 
Columna teres, clavata, pede curvato, 3-lineato, uncialia 
fere. Stigma grande apicem columne occupans, 
Clinandrium valde profundum, margo integer postica eleva- 
tior. 
Anthera terminalis, mobilis, opercularis, carnosa, cuculli- 
formis, bilocularis, loculi membranacei, fusci, obsolete 4-lo- 
cellatis marginibus albis plicato-sinuatis subcrenatis, 
Pollinia 8-quaternatim coherentia ope materia pulverea 
caudiculas breves formanti, superiora anticaque rotundata, 
faciebus accumbentibus planis, ratione inferiorum oblongo- 
rum minima. 
Rostellum verticale rotundatum integerimum. 
Glandula nulla. 
AB. Brought by my collector from the Abor Mountains 
on the Northern boundary of Upper Assam : May, 1836. 
This appears to me to be of the same genus with one late- 
ly published by Dr. Lindley from materials sent from Ceylon 
by Mr. Watson. It is a very distinct one, 
