 (Cootes,J., Banks.P.D.,& Titmuss,D.2001.,pg.56)

Dorsal sepal of B. weberi was entirely yellow with purplish blotches, also on long multicellular hair at apical part.In B. weberi, the both surfaces of dorsal sepal were smooth, with a few minute sunken unicellular (situated in pairs) or bicellular trichomes in small depressions.The apical part of the sepal abaxial (outer) surface bore stomata, placed also in the depressions.