Describe the structure of ligule

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WebA leaf with a pinnated pattern (like a feather) has a central vein running down the middle of the leaf with other veins branching off to either side of it. A leaf with a palmate pattern has veins branching out from a single one to form a shape resembling the palm of a hand. WebDownload scientific diagram Illustration of barley leaf characteristics (A) Structure of a barley leaf, comprised of the sheath and blade, the ligule and auricles; the insertion angle at the ...

Selaginella: Habitat, Reproduction and Life Cycle - Biology …

Webligule: a variously modified extension of the sheath lying at the base of the blade; often a vertical membrane, and in certain cases, mere bristles. crown: basal zone of the shoot, the origin of which was tissue at the base of the … east palo alto housing

Selaginella: Habitat, Features and Reproduction - Biology Discussion

WebJun 28, 2008 · Great variety in ligule abaxial surface anatomy was found but internally all ligules so studied possess a tripartite structure of two uniseriate epidermes enclosing a … WebAug 16, 2024 · The ligular region, between the maize blade and sheath, consists of the ligule and auricle and establishes leaf angle, which determines the plant’s overall architecture.Mutant studies in maize have identified genes essential for development of the ligular region (9–13).lg1 and lg2 mutants exhibit erect leaf architecture because of … WebAug 23, 2010 · The ligule is a membranous structure present on the adaxial leaf surface at its junction with the stem (Singh et al., 2010). This feature dates back to the middle Devonian homosporous lycopsids, e ... east palo alto sewer district

Comparative Morphology of Ligules of Three Indian

1.1 Parts of the Plant – Gardening with Native Grasses in Cold …

WebAug 8, 2006 · They are described in detail, emphasizing interspecific differences and habitat-dependent variation of shape, length and prickle hair density. All ligules studied are membranous, without veins and... WebJan 1, 2013 · Many key recognizing characters are present in the collar region, the junction of the leaf blade and leaf sheath, where the ligule resides. The paper aims to determine the type, shape, structure ... east palo alto police department facebookWebJan 1, 1985 · The ligule is considered to be a highly organized and differentiated leaf organ with a pholosynthetic mesophyll and an adaxial epidermis active in the … east palo alto san mateo county

"Webpoint of view of structure–function relationships are the membranous ligules, particularly those of the genus Lolium (Chaﬀey, 1983b, 1985a,b,c,d, 1994, 1995, 1996), and this … " - Describe the structure of ligule

Describe the structure of ligule

WebJan 1, 1985 · Abstract. Aspects of the structure and ultrastructure of the membranous ligule of mature leaves of Lolium temulentum L. are described. In transverse section the ligule was lens-shaped and wedge-shaped in longitudinal section, 6 or 7 cells wide near the base and 1 or 2 cells wide at the edges. WebAsteraceae. In Asteraceae: Flowers. …one kind of flower, the ligulate flower. Ligulate flowers superficially resemble the ray flowers of radiate heads in having a corolla that is tubular at the base and prolonged on the outer side into a flat, strap-shaped ligule. They differ from ray flowers in that they are perfect (bisexual) and…. Read More.

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WebA ligule is a membranous appendage found at the collar that serves as a useful trait to identify different grass species. Compare the ligule shapes of big bluestem (Exhibit 10) … WebThe pistil (female structure) is composed of two carpels, which are united to form a compound ovary with a terminal style. There is usually a nectar-producing region (nectary) in the form of a minute ring surrounding the style atop the ovary. The ovary has only one locule (seed cavity), with a single ovule arising from the base.

WebThe morphology of the ligule was similar to that described in Hubbard (1976). Externally-observed features Light microscopy. Both ligule surfaces were composed of long cells … Webligule ( ˈlɪɡjuːl) or ligula n 1. (Botany) a membranous outgrowth at the junction between the leaf blade and sheath in many grasses and sedges 2. (Botany) a strap-shaped corolla, such as that of a ray floret in the daisy [C19: via French, from Latin ligula strap, variant of lingula, from lingua tongue]

WebLigules are tiny appendages on the upper (adaxial) side of the leaf (both vegetative and reproductive), near the leaf base ( Figures 4.16, 4.18D,H, 4.19D ). The function of … WebThese observations suggest that common mechanisms are utilized to initiate leaves and branches are redeployed to regulate ligule and auricle development from leaf primordia. A major step in understanding morphogenesis of these structures requires knowing when and how the auricle forms relative to the ligule.

Webthe ligule but a portion of whitish collar can be seen at the edge of the fold. ... The following review of grass plants is intended to describe the functions of various plant parts that will be important in studying grass growth and regrowth. ... seedlings emerge from the soil with only one leaf-like structure (Fig. 3, germination and ...

WebInternal Structure of Selaginella: 1. Stem: A Tranverse section (T.S.) of the stem of Selaginella is somewhat circular in outline and shows the following... 2. Root: A T.S. of … culver\u0027s pick up orderWebInflorescence – The entire reproductive structure of a grass, sedge, or rush is called the inflorescence. Ligule – The ligule is where the blade and the sheath meet. The ligule … eastpaloaltowater.comWebLigule definition, a thin, membranous outgrowth from the base of the blade of most grasses. See more. east palo alto news shooting 2019WebThe ligule has a basal cup-shaped sheath with often casparian strips (e.g., S. kraussiana) and an adjacent hemispherical glossopodium (Greek glossa ‘tongue’ and podiun ‘foot’) … east palo alto ravenswood business districtWebligule leaf structure Learn about this topic in these articles: lycophytes In lycophyte: Form and function …a leaf; this is the ligule, a peculiar tonguelike outgrowth from the leaf surface near the leaf base. Leaves of Lycopodium and Selaginella can be differentiated on this … culver\u0027s plant cityWebAug 14, 2024 · A prominent structure at the blade–sheath boundary of most grasses is the ligule, a flap of tissue that extends laterally from the adaxial surface. Ligule morphology varies across taxa, from membranous, to ciliate, to vascularized structures, and can range in size from reduced (a couple of millimeters) to extended (several centimeters ... culver\u0027s plant city floridaWebJan 15, 2013 · The ligule is an adaxial structure found at the blade-sheath boundary of most grass leaves. The main function of a ligule is to repel water from entering the space between the leaf sheath and stem, where axillary buds form. ... Here, we describe the characterization and cloning of the semi-dominant Liguleless narrow-Reference (Lgn-R) … east palo alto sutter health