单词 | palea |
释义 | palean. 1. Botany. a. Any of the scales found on the receptacle at the base of the individual florets in many plants of the family Asteraceae ( Compositae). Cf. pale n.5 2. ΘΚΠ the world > plants > part of plant > leaf > bract, scale, palea, or spathe > [noun] huskc1400 hosea1450 pannicle1672 surfoil1672 squama1738 palea1753 spatha1753 pelt1759 pelta1760 spath1763 bract1771 scale1776 spathe1785 scalelet1787 glume1789 ramentum1793 rament1813 paleola1829 bracteole1830 bractlet1835 glumelle1836 palea1836 pale1847 periphyll1858 bracket1860 glumella1861 glumellule1861 lodicule1864 bract-sheath1870 palet1871 palea1875 pale1890 prophyllum1890 hypsophyll1895 pale1900 prophyll1902 1753 Chambers's Cycl. Suppl. at Receptaculum Its surface is sometimes naked, and sometimes paleaceous..all over beset with narrow pointed paleæ. 1830 J. Lindley Introd. Nat. Syst. Bot. 198 Bracteæ..when present, stationed at the base of the florets, and called paleæ of the receptacle. 1857 A. Henfrey Elem. Course Bot. 78 (caption) Section of a capitulum of a Composite plant with paleæ at the base of the tubular and ligulate florets. 1880 Encycl. Brit. IV. 120/2 It is from the membranous white scales or bracts (paleæ) forming the choke attached to the edible receptacle that the flowers [of the artichoke] are produced. 1931 New Phytologist 30 33 There is union between the paleas (bracteoles) of two distinct flowers. 1995 Brittonia 47 61 Some of the character states are unique features of Coreopsis, e.g., globular and elongately conical receptacles,..narrowly spathulate paleae, [etc.]. b. Either of the two bracts commonly enclosing the stamens and ovary in the floret of a grass; spec. the upper or inner of the two. Cf. pale n.5 1. lower palea n. the outer of these two bracts, usually firm in consistency and with a well-marked midrib; also called lemma or flowering glume. upper palea n. the inner of these two bracts, usually thin and delicate, and absent in a few genera. ΘΚΠ the world > plants > part of plant > leaf > bract, scale, palea, or spathe > [noun] huskc1400 hosea1450 pannicle1672 surfoil1672 squama1738 palea1753 spatha1753 pelt1759 pelta1760 spath1763 bract1771 scale1776 spathe1785 scalelet1787 glume1789 ramentum1793 rament1813 paleola1829 bracteole1830 bractlet1835 glumelle1836 palea1836 pale1847 periphyll1858 bracket1860 glumella1861 glumellule1861 lodicule1864 bract-sheath1870 palet1871 palea1875 pale1890 prophyllum1890 hypsophyll1895 pale1900 prophyll1902 1836 J. C. Loudon Encycl. Plants (rev. ed.) 67 Melica ciliata... Outer paleæ of lower floret fringed, Panicle subspicate equal. 1861 J. E. Sowerby & C. Johnson Grasses Great Brit. 5 Fox-tail Grass... Flower with a single palea, which is five-veined and awned from the base. 1882 Nature 17 Aug. 374 The inner palea exhibits rudiments of two sepals,..making up, with the outer palea, a single trinary whorl. 1910 Encycl. Brit. XII. 371/2 In immediate relation with the flower itself..is the palea or pale (‘upper pale’ of most systematic agrostologists). 1954 C. E. Hubbard Grasses 67 Rye Brome... Paleas..as long as the lemmas, the keels fringed with short stiff hairs. 1992 M. Ingrouille Diversity & Evol. Land Plants 186 Each floret in the spikelet is enclosed by two other bracts; the lower is the lemma and the upper is the palea. c. Any of the scales found on the stipe in many ferns. ΘΚΠ the world > plants > part of plant > leaf > bract, scale, palea, or spathe > [noun] huskc1400 hosea1450 pannicle1672 surfoil1672 squama1738 palea1753 spatha1753 pelt1759 pelta1760 spath1763 bract1771 scale1776 spathe1785 scalelet1787 glume1789 ramentum1793 rament1813 paleola1829 bracteole1830 bractlet1835 glumelle1836 palea1836 pale1847 periphyll1858 bracket1860 glumella1861 glumellule1861 lodicule1864 bract-sheath1870 palet1871 palea1875 pale1890 prophyllum1890 hypsophyll1895 pale1900 prophyll1902 1875 A. W. Bennett & W. T. T. Dyer tr. J. von Sachs Text-bk. Bot. 129 We may term all appendages of other parts which originate as outgrowths of epidermis-cells, whatever their form and function, Hairs (Trichomes). Thus the so-called paleæ and sporangia of Ferns are trichomes. 1911 Encycl. Brit. XXII. 610/2 Some ferns have a longer or shorter erect stem often clothed by the persistent bases of the leaves... Its surface is clothed with filamentous or scaly hairs (paleæ), which protect the growing point. 1931 Brittonia 1 73 Dr. Christensen calls my attention to the very remarkable paleae of this fern. Those of the caudex and stipe-base are a very dark brown. 1978 Brittonia 30 247 Palea. In ferns, a scale which bears numerous glandular hairs. ΘΚΠ the world > animals > birds > parts of or bird defined by > [noun] > neck or throat > appendage or pouch on wattle1513 gill1596 rattles1611 gorget1703 pouch1774 parapatagium1887 palea1890 1890 Cent. Dict. Palea, in ornith., a fleshy pendulous skin of the chin or throat, as the dewlap or wattle of the turkey. This entry has been updated (OED Third Edition, March 2005; most recently modified version published online March 2022). < n.1753 |
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