Epichilium is a botanical term used to describe a modified upper lip of a flower's corolla. The word is spelled "ɛpɪˈkɪliəm" and is pronounced eh-pih-KILL-ee-uhm. The first syllable, "ɛpɪ," is pronounced like "epi" as in "epidemic." The second syllable, "ˈkɪli," sounds like "kill-ee." The final syllable, "əm," is pronounced like "uhm" as in "um" in "hmm." The spelling and pronunciation of this word may be challenging for some individuals, given its scientific and technical nature.
The term "epichilium" refers to a specific anatomical structure found in certain flowers, particularly within the orchid family, Orchidaceae. It is a specialized structure that encompasses the uppermost part of the lip or labellum of the flower. The epichilium is positioned in front of the column or stamen (the male reproductive structure) in orchids and plays a crucial role in attracting potential pollinators.
The epichilium typically exhibits distinctive morphological characteristics that aid in attracting specific pollinators. It often displays vibrant colors, intricate patterns, or intriguing shapes, precisely adapted to attract certain insect species that are attracted to these particular visual cues. Additionally, the epichilium may emit certain scents or produce nectar as further enticement for the pollinators.
This structure is an essential component of the reproductive strategy of orchids as it helps to ensure successful pollination. By captivating pollinators through its striking appearance, the epichilium assists in guiding the insect towards the reproductive organs. This, in turn, increases the chances of transferring pollen from the anther to the stigma, facilitating fertilization and subsequent seed production.
In summary, the epichilium is a specialized anatomical structure found in orchid flowers that serves as an attractive visual and olfactory cue to entice pollinators. Its main function is to aid in the reproductive process by facilitating the transfer of pollen and ensuring successful fertilization.
In bot., the upper portion of the lip of any orchidaceous plant when this organ is divided into two parts which are dissimilar in appearance.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word epichilium is derived from the combination of two Greek words: epi meaning on or upon, and cheilos meaning lip.