Keywords
Anthurium
floral fragrances
pollination
Euglossini
Cecidomyiidae
Drosophilidae
How to Cite
Abstract
The pollination strategies of Anthurium (Araceae) were investigated in the field in Ecuador. Three different pollinator types (viz., Cecidomyiidae, Drosophilidae and Euglossini) were observed in wild plants in habitat. Floral fragrances of 10 Anthurium species grown in a greenhouse were sampled and analyzed. Species visited by Cecidomyiidae in the field are scentless to the human nose and to our technical equipment. Those visited by Drosophilidae emit substances perceived by humans as smelling of alcohol or rotten fruit. The remaining species emitted strong, most agreeable perfumes in the morning hours and fit well into the euglossine syndrome better known in some groups of neotropical orchids. Scent composition of these species is discussed in some detail. One of the perfumed species was observed to be euglossinepollinated in the field. The probable genetic isolation of species by means of scent-directed allocation of pollinators is discussed.
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