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In entomology, the term labellum has been applied variously and in partly contradictory ways. One usage is in referring to a elongation of the labrum that covers the base of the rostrum in certain Coleoptera and Hemiptera .
The labellum's surface is covered by minute food channels, formed by the interlocking elongate hypopharynx and epipharynx, forming a proboscis used to channel liquid food to the oesophagus. The food channel draws liquid and liquified food to the oesophagus by capillary action .
Labellum (plural: labella) is the Latin diminutive of labrum, meaning lip. The labellum is a modified petal and can be distinguished from the other petals and from the sepals by its large size and its often irregular shape. It is not unusual for the other two petals of an orchid flower to look like the sepals, so that the labellum stands out as ...
See also androgynous, monoicous, and plant reproductive morphology. bitegmic (of an ovule) Covered by two integument s. Contrast unitegmic. biternate Ternate, with each division divided into three. bivalve Having two valves or hinged parts. Contrast trivalve. blade The lamina or flattened part of a leaf, excluding the stalk or petiole. bloom
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Insect morphology is the study and description of the physical form of insects. ... the labial palps have become modified to form the labellum, and the maxillary ...
Labellum (plural: labella) is the Latin diminutive of labium, meaning lip. These are anatomical terms used descriptively in biology: Labellum (botany), a part of a flower; Labellum (insect anatomy), a part of the mouth of an insect; Labella is also a surname. Ana María Martínez Labella, Spanish politician; Edgardo Labella (1951–2021 ...
Illustration of leaf and flower morphology for Ophrys apifera (left) and Ophrys fuciflora (right) Ophrys apifera grows to a height of 15–50 centimetres (6–20 in). This hardy orchid develops small rosettes of leaves in autumn that continue to grow slowly during winter. Basal leaves are ovate or oblong-lanceolate, and upper leaves and bracts ...