| 单词 | corolla |
| 释义 | corolla noun[C] biologyspecializeduk/kəˈrɒl.ə/us/kəˈroʊ.lə/all of thepetalsof afloweras agroup 花冠Parts of plants
Examplesofcorollacorolla There is a morphological correspondence between the length of hummingbird bills and the length of the corollas in ornithophilous flowers. From theCambridge English Corpus Strong positive correlations (r > 0.9) between anther height andcorolla-tube length were found in both morphs. From theCambridge English Corpus The cotyledons andcorollaof a plant are worked on by an expansive force, while the calyx and coronas are affected by a contractive force. From theCambridge English Corpus Long corollas usually exclude short-billed hummingbirds, whereas short corollas permit access by long- and/or short-billed birds. From theCambridge English Corpus In fact, none of the 627 flowers used in our field experiments had holes in the base of thecorolla. From theCambridge English Corpus These may also benefit the plant by preventing insects from damaging thecorollawhen robbing nectar. From theCambridge English Corpus The stamens have a rigid filament and a length that places the anthers beyond the tube of thecorollaprecisely under its upper lip. From theCambridge English Corpus Corolla-tube length (a), anther height (b), stigma height (c),corolla-lobe length (d), stigma-lobe length (e), and anther length (f) were measured. From theCambridge English Corpus This floral structure may act as a developmental constraint and generate positive anther-corollacorrelations. From theCambridge English Corpus Two categories contained those flowers in which thecorollaor perianth was at least partly fused into a tube. From theCambridge English Corpus Generally, long corollas exclude short-billed trochilids, whereas short corollas allow access for both long- and short-billed species. From theCambridge English Corpus Preferential nectar robbing of flowers with long corollas: experimental studies of two hummingbird species visiting three plant species. From theCambridge English Corpus Anther height andcorolla-tube length showed the highest correlation coefficients (r > 0.9) for both morphs. From theCambridge English Corpus In general, another characteristic of this syndrome is rigidness of the corollas as an adaptation that minimizes possible damage caused by the pollinators upon extracting nectar. From theCambridge English Corpus Larvae bore into the ovary orcorollatube of disc or ray florets, moving from one floret to the next. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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