Exempel på corolla

• Complete flowers are made up of four parts, two of which, the stamen and pistil, are essential, while the other two, the calyx and corolla, are accessory. 

• Each blossom of five petals forms a little tube or corolla. 

• Plantains retain their corolla but in a degraded form. 

• The corolla consists of four very small white petals. 

• This species has red, straight sepals, and a purple corolla. 

• There is a morphological correspondence between the length of hummingbird bills and the length of the corollas in ornithophilous flowers.

• Strong positive correlations (r > 0.9) between anther height and corolla-tube length were found in both morphs.

• The cotyledons and corolla of a plant are worked on by an expansive force, while the calyx and coronas are affected by a contractive force.

• Long corollas usually exclude short-billed hummingbirds, whereas short corollas permit access by long- and/or short-billed birds.

• In fact, none of the 627 flowers used in our field experiments had holes in the base of the corolla.

• These may also benefit the plant by preventing insects from damaging the corolla when robbing nectar.

• The stamens have a rigid filament and a length that places the anthers beyond the tube of the corolla precisely under its upper lip.

• Corolla-tube length (a), anther height (b), stigma height (c), corolla-lobe length (d), stigma-lobe length (e), and anther length (f) were measured.

• This floral structure may act as a developmental constraint and generate positive anther- corolla correlations.

• Two categories contained those flowers in which the corolla or perianth was at least partly fused into a tube.

• Generally, long corollas exclude short-billed trochilids, whereas short corollas allow access for both long- and short-billed species.

• Preferential nectar robbing of flowers with long corollas: experimental studies of two hummingbird species visiting three plant species.

• Anther height and corolla-tube length showed the highest correlation coefficients (r > 0.9) for both morphs.

• 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.

• Larvae bore into the ovary or corolla tube of disc or ray florets, moving from one floret to the next.