sepal


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sepal

a modified leaf (usually green) forming part of the CALYX of the flower of a DICOTYLEDON, which often protects the flower while in bud but which can be modified for other functions; for example in the dandelion it forms the seed parachute.
References in periodicals archive ?
The most peculiar characters of this taxon are located in the flowers, which are strongly zygomorphic with an urceolate and markedly bilateral calyx; sepals are light yellow (lower altitude populations) or purple (higher altitude populations); there are existing populations that show yellow-purplish sepals as an intermediate character; the adaxial sepals are larger than the abaxial; the abaxial are suborbicular to broadly ovate-cordate, forming a distinctive banner like hood, keeled, 4-6 x 6-8 mm; petals are subincluded or barely exserted, purplish or brownish, especially on the veins.
SEM specimen mounting glue or the adhesive from double-side mounting tape was placed onto the tip of a forcep, and this sticky forcep tip was then used to pull bracteoles, sepals, or petals of the flower bud with greater precision than was possible without the adhesive method.
However, they may be perfect, yet lack sepals or petals, or both.
Es decir, el instrumento virtual no se conforma con la adquisicion de la sepal, sino que tambien involucra la interfaz hombremaquina, las funciones de analisis y procesamiento de senales, las rutinas de almacenamiento de datos y la comunicacion con otros equipos.
These traits included: (1) resin secretion by floral bractlets, (2) pollination by resin-collecting bees, (3) the presence of large involucral bracts, (4) nocturnal closure of these bracts, (5) the tendency of sepals to envelope the pistillate flowers, (6) resin secretion by the pistillate sepals, (7) presence of sharp, detachable trichomes on the pistillate sepals, (8) closure of the involucral bracts around the developing fruits, and (9) resin secretion by leaves and stipules.
Entomological research has indicated that gossypol glands on the upper margin of the sepal are the most useful in conferring resistance to BW and TBW.
rugosa, petal volatiles are dominated by terpenoid and benzenoid alcohols, sepal volatiles are dominated by sesquiterpenes, and pollen and anther volatiles are dominated by fatty acid derivatives.
Sepal width is not significantly different between the sexes (mean [+ or -] SD: 13.
8 mm, longest opposite the anterior sepal and then opposite the 2 anterior-lateral sepals, stoutest opposite the 3 posterior petals; anthers 0.
The contributions of each component to sepal and petal shape variations are shown in (Tables I and II).
The lateral sepals are 7 cm long, which is many times longer than the upper sepal.