thalamus (n.) plural thalami, 1753, "the receptacle of a flower," Modern Latin, from Latin thalamus "inner chamber, sleeping room" (hence, figuratively, "marriage, wedlock"), from Greek thalamos "inner chamber, bedroom," related to thalame "den, lair," tholos "vault, vaulted building." There are usually four whorls as Calyx (Sepals) Corolla (Petals) *** The terminal part of the axis of the flower is the receptacle or thalamus. In botany, the receptacle or torus (an older term is thalamus, as in Thalamiflorae) is the thickened part of a stem from which the flower organs grow. In phycology, receptacles occur at the ends of branches of algae mainly in the brown algae or Heterokontophyta in the Order Fucales. The longest axes are characteristic of primitive flowers, for example, certain species of magnolia. In the sub-family Pomoideae the thalamus is a deep cup. A flower can be classified into several groups on the basis of their number and the presentation of their whorls, symmetry, floral appendages, amongst many other things. This is called toms or thalamus or receptacle. structure within forebrain. In context|botany|lang=en terms the difference between torus and thalamus is that torus is (botany) the end of the peduncle or flower stalk to which the floral parts (or in the asteraceae, the florets of a flower head) are attached; see receptacle while thalamus is (botany) the receptacle of a flower; a torus. A flower having only functional stamens and lacking functional carpels is called a staminate flower, or (inaccurately) male. The receptacle of a flower; a torus. An area of the brain that helps process information from the senses and transmit it to other parts of the brain. In the sub-family Spiraeoideae the thalamus is flat or slightly concave but never a deep cup or a convex receptacle. n thalamus Specifically, the optic thalamus; the thalamus of the optic nerve; the great posterior ganglion of the cerebrum, forming the lateral wall of the cerebral ventricle, and connected with its fellow by the middle commissure of the brain. In the Daisy family (Compositae or Asteraceae), small individual flowers are arranged on a round or dome-like structure that is also called receptacle. Others are quite general and inclusive, but imprecise. A flower ha four main whorls: Calyx, corolla, androecium and gynoecium, arranged on the thalamus or the receptacle. One reason for that might be that there are several terms describing various phenomena related to floral architecture. As nouns the difference between receptacle and thalamus Borrowed from Anglo-Norman receptacle, from Middle French receptacle (“organ containing a fluid; gathering place; water basin”) (modern French réceptacle), from Latin receptāculum (“animal enclosure, container, place of refuge, receptacle, repository, reservoir, shelter”), from receptāre (“to harbour, to receive, to shelter”) or receptō (“I receive back or again, I recover”), frequentative of recipiō (“I receive; I hold back, I reserv… See Wiktionary Terms of Use for details. A typical flower has four different kinds of whorls arranged successively on the swollen end of the stalk or pedicel, called thalamus or receptacle. The fruit of Rubus species is a cluster of drupelets on top of a conical receptacle. [2] Receptacles also function as a structure that captures food. Biswarup Majumder | Bio-World Receptacle Stalk The tip of flower stalk may be expanded to form a cup- shaped receptacle (thalamus… It may be elongated and conical or like an inverted cone with a spongy flat top as in lotus. See cut under cerebral. Thalamus (noun) A thallus. Thalamus (noun) The receptacle of a flower; a torus. (electricity, US) A contact device installed at an outlet for the connection of an attachment plug and flexible cord to supply portable equipment or appliances. In angiosperms, the receptacle or torus (an older term is thalamus, as in Thalamiflorae) is the thickened part of a stem (pedicel) from which the flower organs grow. Definition of thalamus in the Definitions.net dictionary. The tip of the stalk is swollen or flattened. When a raspberry is picked, the receptacle separates from the fruit, but in blackberries, it remains attached to the fruit. Bio 101 A flower is composed of our floral parts that are attached to the flower base known as the receptacle or thalamus. (botany) The receptacle of a flower; a torus. These are calyx, corolla, androecium and gynoecium. As nouns the difference between torus and thalamus Creative Commons Attribution/Share-Alike License; (botany) The part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; also torus. When a flower is borne singly, the internode between the receptacle and the bract (the last leaf, often modified and usually smaller than the other leaves) is the peduncle. Receptacle (noun) A structure at the end of a branch of an alga containing conceptacles (reproductive organs). Some flowers may be without stalk (sessile flower). Some of these terms are focusing only on a specific aspect. The receptacle contains sepals, petals, stamens and carpels. part of the midbrain (Anatomy); receptacle of a flower in which the embryo fruits and later the seeds are held (Botany) Rakefet Thalamus, Optic [from Greek optikos visual from op to see + thalamos chamber] The optic thalami are the two great posterior ganglia at the base of the brain, forming part of the wall of the third ventricle. The flowers in which the margin of the thalamus grows upward enclosing the pvary completely and getting fused with it , the other parts are located above flower Calyx Is the outermost whorl of the flower and its members are called the sepals. A fully opened flower has the following parts: Stalk—A flower is attached to the shoot by means of stalk or pedicel stalk. (anatomy) Either of two large, ovoid structures of grey matter within the forebrain that relay sensory impulses to the cerebral cortex. In some accessory fruits, for example the pome and strawberry, the receptacle gives rise to the edible part of the fruit. Meaning of thalamus. When a raspberry is picked, the receptacle separates from the fruit, but in blackberries, it remains attached to the fruit.[1]. What does thalamus mean? In some accessory fruits, for example the pome and strawberry, the receptacle gives rise to the edible part of the fruit. The peduncle is the stalk of a flower or an inflorescence. These 4 whorls consisting of the accessory organs and the reproductive organs are set up in the formation of a stalk known as the receptacle or the thalamus. Under this … I prefer the definition for floral architecture provided by Endress (1996). Flower has short or long flower stalk which is called pedicel. Floral architecture is a term which is not commonly used. A flower is the sexual reproductive unit of flowering or angiosperms. One of the two subdivisions of the diencephalon The thalamus receives and processes sensory information and sends the sensory information to the appropriate regions of the cerebral cortex The thalamus also plays important roles in motor control The receptacle of a flower; a torus Brain cells which lie in the upper part of the brainstem Receptacle (noun) The part of the attached; a thalamus, a torus. Flowers develop on the stem either single (called solitary flowers) or collectively. The upper part of pedicel is swollen, spherical shaped or conical which is called thalamus / Receptacle. Thalamus (noun) An inner room or nuptial chamber. He differentiates between floral organisation and floral architecture. This article is about the receptacle in botany. The flower is commonly borne on short or long stalk called the pedicel (stalked or pedicellate flower). A thallus. The flower is the reproductive unit in the angiosperms. In angiosperm: The receptacle. Sometimes the apex of thalamus grows up in conical shape as in raspberry. The internodes are greatly shortened or absent, and longitudinal growth is limited. n thalamus Same as thallus. (C) EPIGYNOUS In some flowers the concave receptacle surrounds the ovary and is fused with it. An abortive or rudimentary stamen is called a staminodium or staminode, such as in Scrophularia nodosa. The fruit of Rubus species is a cluster of drupelets on top of a conical receptacle. The part from where flower arise is called bract. Flower is highly modified reproductive shoot. Receptacle (noun) A plug (typically by receiving the plug's supply portable appliances or equipment. The floral parts which are arranged in four different whorls on the receptacle are Calyx, corolla, androecium and gynoecium. Whereas in some cases the calyx forms a cup shaped structure called calyx tube such as in wild rose. Information and translations of thalamus in the most comprehensive dictionary definitions resource on … The swollen and enlarged upper part of the pedicel is known as receptacle/thalamus and floral leaves are present on it. The thalamus is the short floral axis, with compressed nodes and internodes on which various floral leaves are inserted. i.e., in clusters. Flowers are pentamerous with 10 – α stamens, 5 carpels which may be free as in Spiraea or fused as in Lindleya. Morphology of Flower Characteristics Flower is highly condensed and modified reproductive shoot. Figure 35 shows the various parts of a flower. A plant with only functional carpels is called pistillate, or (inaccurately) female. In angiosperms, the receptacle or torus (an older term is thalamus, as in Thalamiflorae) is the thickened part of a stem (pedicel) from which the flower organs grow. In context|botany|lang=en terms the difference between receptacle and thalamus is that receptacle is (botany) the part of the flower stalk (peduncle or pedicel) to which the floral parts are attached; also torus while thalamus is (botany) the receptacle of a flower; a torus. Morphology Of The Flower. Examples of the first (i.e., thalamus more or less flat) type may be found in the peas, strawberry, etc., while the second type (thalamus forming a concave receptacle) is found in rose, etc. Thalamus is the direct prolongation of the pedicel and is also called torus or receptacle. Based on the position of calyx, corolla and androecium in respect of the ovary on thalamus (receptacle), the flowers can be described as Hypogenous, Perigynous or Epigynous. It is meant for sexual reproduction. The receptacle (thalamus) : Variation of the Receptacle, Insertion of floral leaves on the thalamus The receptacle (thalamus). A thalamic stroke is a type of stroke that happens in your thalamus, a small but very important part of your brain. A bisexual flower has both androecium and gynoecium, while a unisexual flower has either androecium and gynoecium. (also torus or thalamus), in a flower the axis that bears the calyx, corolla, stamens, and pistil. All the four parts develop in ascending order on the swollen end (the thalamus or receptacle or torus) of the floral axis or stalk, the pedicel. In botany, the receptacle refers to vegetative tissues near the end of reproductive stems that are situated below or encase the reproductive organs. The different parts of a flower are inserted on the thalamus. n thalamus In botany: The receptacle or torus. The thalamus is an area linking the cerebral cortex to pain and pleasure centres. For other uses, see, International Code of Nomenclature for algae, fungi, and plants, International Code of Nomenclature for Cultivated Plants, International Association for Plant Taxonomy, https://en.wikipedia.org/w/index.php?title=Receptacle_(botany)&oldid=864020846, Creative Commons Attribution-ShareAlike License, This page was last edited on 14 October 2018, at 16:10. Flowers with bracts are called bracteate and those without bracts are called ebracteate. Receptacle (noun) An organ that receives and holds a secretion. 48. Structure of Flower A flower arises in the axil of a leaf like structure called bract. They are specialised structures which contain the reproductive organs called conceptacles. Text is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply. , Insertion of floral leaves are inserted of stalk or pedicel stalk or long flower stalk which is bract... 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Sometimes the apex of thalamus in the Definitions.net dictionary be elongated and or.

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