Keywords
FLORAL FRAGRANCE
How to Cite
Abstract
During the past several years the floral fragrance components of several genera of orchids have been identified (Hills, Williams & Dodson, 1968, 1972). In most ofthe genera in which floral fragrance components have been identified, the floral fragrance components have been important in the attraction of pollinators (Dodson & Hills, 1966; Hills, 1968; Hills, Williams & Dodson, 1968, 1972; Dodson et al., 1969; Dodson, 1970; Williams & Dodson, 1972), especially in the attraction of male euglossine bees to various species of orchid flowers as pollinators. Brassavola, however, is not pollinated by male euglossine bees, but possesses the syndrome associated with moth pollination in the Orchidaceae: 1) odor production at night, 2) weakly zygomorphic flowers, 3)landingplace curved backwards orturnedupwards, 4) color white, cream or often greenish, 5) odor heavy-sweet, very strong, not fruity, 6) abundant nectar deeply hidden in narrow tubes, 7) colored nectar guides absept, 8) position of the flower rarely erect, usually horizontal or hanging (modified from van der Pijl & Dodson, 1966). Unfortunately, detailed observations on moth pollination in the group are scanty, being limited to one report by van der Pijl & Dodson (1966) of sphingid pollination in B. digbyana and a personal communication (from N. G. Smith) of moth pollination of Brassavola nodosa in Panama.
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