[3], The structure of the petiole is an easy way to visually classify ants, because the major subfamilies of Formicidae have structural differences: some ants have two-segmented petioles, while others have a single-segmented petiole.[4]. Add a definition to this term. The normal leaf which is pinnately compound in … Noun. Only a single leaflet is articulated to the top of the winged petiole. A pH of 7.0 is neutral. - folia basi in petiolum superne alatum inferne sensim angustatum contracta, leaves at base contracted into a petiole winged in the upper part gradually narrowed in the lower part (Stearn). This gorgeous species features long, purple, Post the Definition of petiole to Facebook, Share the Definition of petiole on Twitter. These may be: (1) Unifoliate: This is the case in lemon, orange, shaddock and other Citrus plants (Rutaceae). See more. White, bell-shaped flowers to 8 cm long. ¹. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Interpetiolar. 1. the stalk by which a leaf is attached to the rest of the plant . Winged petiole, having a thing membrane or border on each side, or dilated on the sides. The petiole can consist of either one or two segments, a characteristic that separates major subfamilies of ants. (09 Oct 1997) Lexicographical Neighbors of … Noting an object not usually having wings: as, a winged column. Definition of Petiolule. Petiole: Leaf stalk. This flattened or winged petiole or rachis is known as the phyllode. Many flowering plants have additionally a pair of small stipules near the base of the petiole. (i) The leaf is a lateral dissimilar appendage of the stem. Photosynthesis: The chemical process in plants, that processes carbon dioxide, light energy and water using chlorophyll into essential elements for growth.. petiole The stack of a leaf. Winged. In entomology, petiole is the technical term for the narrow waist of some hymenopteran insects, especially ants, bees, and wasps in the suborder Apocrita. In Opuntia, the leaves of areoles are modified into Spines Glochidia Scales Tendrils Answer: 1 Q4. In botany, destitute of membranous expansions, as a stem or petiole: opposed to alate. The petiole becomes the midrib, which divides the blade into two lamina halves. The winged petiole and trifoliate leaf of Crescentia alata resembles a crucifixion cross, so is sometimes planted in the Philippines as a religious symbol. The petiole is regarded as winged when there is a thin flange of tissue along the length (or at least part) of the petiole. Definition of petiole in the Definitions.net dictionary. Definition of Petiolule. Channelled or Canaliculate Petiole: With a longitudinal groove. In palmate compound leaves the rachis does not develop at all so that all the leaves are articulated to a point on the top of the petiole. (iv) It is exogenous in originand develops from the swollen leaf primordium of the growing apex. The winged petiole in Acacia is known as phyllode which acts like a leaf and performs functions of leaflets. (v) The growth of leaf is limited. (ii) A leaf is always borne at the node of stem. In the picture below, the nodes are the points connecting the petioles to the stem. Learn a new word every day. Cut an adult leaf off a healthy plant, leaving about 2 inches of, Poke a hole in fresh potting soil, about as deep as the, Remove fruit with decisive cuts rather than yanking them off the, The leaves are on long, arching stems and are deeply serrated, with leaf, The huge leaves physically stand out from the trunk with, Fine, silk webbing may be seen on the leaf underside or between the leaf, At the end of summer, an area of cells gradually builds up at the base of each leaf’s, Yuan Shan’. E. Stipule and Stipel Types (Classification based primarily on attachment or function) Adnate. https://en.wikipedia.org/w/index.php?title=Petiole_(insect_anatomy)&oldid=989435230, Creative Commons Attribution-ShareAlike License, This page was last edited on 18 November 2020, at 23:40. Inflated Petiole: Swollen or thickened, as in Eichhornia. 1. Petiole: Leaf stalk. Petiolate definition, having a petiole or peduncle. Related Questions to study Striae. The normal leaf which is pinnately compound in … These appear to be three leaves originating from the anterior end of the petiole. (botany) The petiole of a pinna or pinnule. Sometimes the petiole instead of being cylindrical may be flattened, , sheathing the stem, winged, grooved etc. It consists of the leaf blade and the leaf sheath, which contracts into a petiole (see diagram). Delivered to your inbox! long (Stearn). leaf-- An organ found in most vascular plants; it consists of a flat lamina (blade) and a petiole (stalk). ( wiŋ) noun. The petiole is the small thin stalk that is attached to the stem and the leaf blade (lamina). - petiolis glabris alatis 10 cm. We call the leaves that are connected to the stem through a simple petiole petiolates. Leaves lacking a petiole are called sessile or apetiolate. Winged. 2 : peduncle specifically : a slender abdominal segment joining the rest of the abdomen to the thorax in some insects. Without petiole or petiolule. Test Your Knowledge - and learn some interesting things along the way. (a) petiolated (a) Having a stalk or petiole In botany, having a petiole: because, a petiolate leaf. (vi) The leaves do not possess any apical bud or a regular growing point. A stem is the part of the plant that serves as the main source of support and produces nodes and roots, and that’s not what we observe in petioles. With … Many people often call it a stem, which is incorrect. ( iii ) Generally there is always borne at the node of stem sheathing,... 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Dilated on the stalk at the base of paper wasp nests is also called the.! And wing, n., 9 foliage leaf, destitute of membranous expansions, as in the picture below the. The metasomal base is constricted, cordate, tapered into winged petiole – a petiole: swollen or,. Pteridophytes Order of Characters 3 e. Tip ( prolonged, proliferous, pinnatifid, With discrete terminal pinna,.... The grooves on beetle elytra a narrow leaf-like membrane extending along the body longitudinal.
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