VANILLA. 247 
2. Vanille sp. Pl. CCLXXXI. 
Ovarium glaucescens glaberrimum levissimum cylindra- 
ceum, apice dilatato annulat. basi articulat. 
Alabastro ambitu subovovato. Perianth. in apice ovarii di- 
latat. annulat. articulat. 
Sepalis oblongis obtusis concavis postica tertia paullo mi- 
nore sestivatione valvatis! especially of the two lower, in which 
the keel of the petal is not interposed, consistence succu- 
lent, fragile, but not breaking at the articulation because 
basibus omnia connata sunt. Petala conformia imbricata magis 
membranacea eodem modo apice subinflexa, venosa, centro 
conspicue carinata, carina inter sepala lateralis et postice inter- 
jecta and not by any means in an interior plane to them. 
Labellum explanatum oblongum, when spread out sub- 
panduriform plicato-fimbriatis, apicem bilobum, centro basi 
quasi bisulcat. The middle of the disc bearing a large ball 
of cotton, to which is applied a bilobed fleshy inwardly 
barbate body, and this application in the bud is elastic. The 
margins adnate to the column interiorly fleshy, produced 
inwards on each side into a hollow process, the circum- 
ferential tissue of the ovary is filled with raphides. 
Columna basi arcuata labello marginibus antice sulcata, 
semiteres apice dilatata, expanded on each side of the an- 
thers into a membranous rounded process with incurved 
margins. Anthers pendulous from the apex of the clinan- 
drium. Pollen simplex leve? rotundatum. 
Rostellum planiusculum quasi truncatum projecting over 
the lower edge of the stigma, which isa narrow transverse 
fissure, bounded above by the rostellum, below by a bilobed 
fimbriated border. 
Caulis alte scandens, ad articulatam, incrassatis subsulcato- 
flexuosis ad articulos lateri radicul. emittent. 
Fol. oblonga, elliptica acuminato-cuspidata, subsessilia basi 
4 torta carnosissima coriacea striata, vena nulla ceteris con- 
spicuosior, ob torsionem  perpendiculi. Petiolus dilatatus 
canaliculatus semi amplexicaulus. 
