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Encyclopedia > Bract
Toothed bracts on Rhinanthus minor
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Toothed bracts on Rhinanthus minor

In botany, a bract is a modified or specialized leaf, from the axil of which a flower or flower stalk arises; or a bract may be any leaf associated with an inflorescence. Usually bracts are green and resemble the other leaves. However, some bracts are brightly colored and serve the function of attracting pollinators, either in concert with or instead of the tepals. An excellent example of this latter type of bract occurs in the Poinsettia plant (Euphorbia pulcherrima). Download high resolution version (700x925, 193 KB)Yellow-rattle (Rhinanthus minor). ... Download high resolution version (700x925, 193 KB)Yellow-rattle (Rhinanthus minor). ... Pinguicula grandiflora Botany is the scientific study of plantlife. ... The leaves of a Beech tree A leaf with laminar structure and pinnate venation In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... The axil is the space or angle between a primary stalk or branch and a smaller branch or leaf coming off from the primary branch. ... For other articles with similar names, see Flower (disambiguation). ... An inflorescence is a group or cluster of flowers on a branch of a plant. ... Look up perianth in Wiktionary, the free dictionary. ... Binomial name Euphorbia pulcherrima Willd. ...


A small bract is called bracteole or bractlet. Technically it is any bract that arises on a pedicel instead of subtending it. In grasses, the bracts that enclose the florets are termed glumes. A glume, in grasses (Poaceae) and sedges (Cyperaceae), is an basal, membranous, outer sterile husk or bract in grass flowers that do not stand directly at the flower base. ...


Bracts that appear in a whorl are collectively called an involucre. An involucre is a common feature under the inflorescences of many umbelliferous and asteraceous plants. Each flower in an inflorescence may have its own whorl of bracts, in this case called an involucel. Many asteraceous plants have bracts both at the flower base and inflorescence base. Those at the flower base — chaff (recepticular bracts) — are usually minute. Those at the base of the inflorescence or head — the involucral bracts — are usually green, narrow, and leafy. A phyllary is another term for one of the scale-like bracts beneath the flowerhead in Asteraceae species. Genera See text Ref: Hortiplex 2003-11-14 The Apiaceae, the carrot or parsley family, are a family of usually aromatic plants with hollow stems, including parsley, carrot, and other relatives. ... Diversity About 900 genera and 13,000 species Type Genus Aster L. Subfamilies Barnadesioideae Cichorioideae Tribe Arctotidae Tribe Cardueae Tribe Eremothamneae Tribe Lactuceae Tribe Liabeae Tribe Mutisieae Tribe Tarchonantheae Tribe Vernonieae Asteroideae Tribe Anthemideae Tribe Astereae Tribe Calenduleae Tribe Eupatorieae Tribe Gnaphalieae Tribe Helenieae Tribe Heliantheae Tribe Inuleae Tribe Plucheae... Example of a flower head. ...


A prophyll is a leaf-like structure, such as a bracteole, subtending a single flower or pedicel. The term can also mean the lower bract on a peduncle.


A spathe is a large bract that forms a sheath to enclose the flower cluster of certain plants such as palms and arums. In many arums, the spathe is petal-like, attracting pollinators to the flowers arranged on a type of spike called a spadix. Elephant ear or ape flower (Xanthosoma roseum) with a white spadix partially surrounded by a green-, rose-, and cream-colored spathe In botany, a spadix (pl. ... Genera Many; see list of Arecaceae genera Arecaceae (also known as Palmae), the Palm Family, is a family of flowering plants belonging to the monocot order, Arecales. ... Species See text. ... Elephant ear or ape flower (Xanthosoma roseum) with a white spadix partially surrounded by a green-, rose-, and cream-colored spathe In botany, a spadix (pl. ...


The frequently showy pair of bracts of cyathia of Euphorbia species in subgenus Lacanthis is termed cyathophylls. The very special Pseudanthia in the genus Euphorbia (Euphorbiaceae) are known as Cyathia. ... This article needs cleanup. ...


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Bracteate at AllExperts (673 words)
Several bracteates also feature runic alphabet inscriptions (a total of 133 inscriptions on bracteates are known, amounting to more than a third of the entire Elder Futhark corpus).
The study of migration period bracteates are considered an interdisciplinary field of Germanic art, Norse art, numismatics, archaeology, iconography, Norse mythology and runology.
Silver bracteates are different from the migration period bracteates and were the main type of coin minted in German-speaking areas, with the exception of the Rhineland, beginning at around 1130 in Saxony and Thuringia and were taken out of circulation at about 1520.
What Planet is This? - Gægogæ Mægæ Medu (763 words)
Undley Bracteate, as it's now known, dates from c.475 AD, around the time when the Angles were invading Britain from their Schleswig-Holstein homelands.
All of the gold bracteates made between the 5th and 7th centuries were amulets, fashioned with eyelets so that they could be worn around the neck, and created by Germanic migrants.
The Undley Bracteate is a type A, which means that as well as the inscription it shows the face of a human and is modelled after an antique Roman coin.
  More results at FactBites »


 

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