| 单词 | nectar guide |
| 释义 | > as lemmasnectar guide nectar guide n. Botany a marking of contrasting colour or a structural feature of a flower that guides pollinators to its nectar supply; (also) these markings or features collectively. ΘΚΠ the world > plants > part of plant > plant substances > [noun] > nectar or honey-dew > part of plant secreting > markings showing location of honeyguide1879 nectar mark1881 nectar guide1885 pathfinder1889 nectar spot1892 1885 Bot. Gaz. 10 296 A proboscis (or needle) thrust down the line of the nectar guides passes between contiguous anthers. 1906 J. R. A. Davis tr. P. Knuth Handbk. Flower Pollination I. 96 These Nectar-guides..are naturally only present in such flowers as are visited by insects during the day. 2000 Canad. Jrnl. Bot. 78 1164 Lower lips may be maintained in some hummingbird flower species, because they are preadaptations that act as nectar guides for hummingbirds. < as lemmas |
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