ocrean.

Brit.

/ˈɒkrɪə/, U.S.

/ˈɑkriə/

Inflections: Plural ocreae.

Forms: 1800s– ochrea, 1800s– ocrea.

Origin: A borrowing from Latin. Etymon: Latin ocrea.

Etymology: < classical Latin ocrea a greave or legging, worn by foot-soldiers, hunters, and country people; of uncertain origin. Compare Italian ocrea (1834). Perhaps compare earlier oker n.The form ochrea is unexplained.

1. Botany. A dry sheath around a stem or stalk; (usually) spec. one formed by the cohesion of two or more stipules, characteristic of the dock family Polygonaceae.

ΘΚΠ

the world > plants > part of plant > leaf > petiole or leaf-stalk > [noun] > stipule

mantle1672

stipula1763

stipule1793

stipe1821

stipel1821

ocrea1830

paraphyllium1832

stipella1832

the world > plants > particular plants > moss > [noun] > parts of

moutha1398

fimbria1752

calyptra1753

veil1760

lid1776

apophysis1785

operculum1788

peristoma1792

peristome1799

peristomium1806

hair-point1818

vaginula1818

perigynium1821

vaginule1821

gemma1830

paraphyllium1832

tympanum1832

perigon1857

pseudopodium1861

commissure1863

ocrea1863

cap1864

chaeta1866

struma1866

membranulet1891

pyxis1900

pseudopod1914

annulus-

1830 J. Lindley Introd. Nat. Syst. Bot. 169 The cohesion of the scarious stipulæ into a sheath, technically called an ochrea, or boot, is sufficient to distinguish Polygoneæ from all other plants.

1863 M. J. Berkeley Handbk. Brit. Mosses Gloss. 312 Ocrea, a little sheath sometimes investing the base of the fruitstalk, distinct from the vaginula.

1876 Bot. Bull. 1 14 Polygonum Hartwrightii,..ochreae leaf-like to the middle, hypocrateriform.

1901 Bot. Gaz. 31 408 Arnica celsa... Middle stem leaves longest.., sessile or with short petioles and ocreae.

1933 Philos. Trans. (Royal Soc.) B. 222 188 Scytonema androsense... At certain levels, the lamellæ are strongly divergent, and spread out to form broad, pale green or colourless funnel-shaped ocreae.

1976 Flora Europaea I. 77/1 P[olygonum] esquetiforme... Ochreae hyaline, brownish towards the base, much shorter than the internodes.

1992 M. Ingrouille Diversity & Evol. Land Plants 41 In the family Polygonaceae the leaf sheath is extended into a kind of collar called an ochrea.

1995 Brittonia 47 346/1 This clade is easily diagnosed by several unique synapomorphies, including loss of the ocrea in the adult leaves.

†2. Zoology. A sheath resembling the ocrea of a plant; spec. the boot (boot n.³ 6f) of a bird. Obsolete. rare.

ΘΚΠ

the world > life > biology > physical aspects or shapes > specific areas or structures > [noun] > outer covering

hameOE

curtel1398

pelliculea1400

coatc1400

pellicle?a1425

investment1646

tegument1646

cataphragm1656

integument1664

cortexa1676

vagina1683

vaginula1698

scabbard1753

sheath1805

calyx1851

ocrea1890

tunica adventitia1890

the world > animals > birds > parts of or bird defined by > [noun] > feet > part of

sheath1781

instep1783

pad1837

ocrea1890

1890 Cent. Dict. at Ocreatæ In Sundevall's classification of birds,..so called from the fusion of the tarsal envelop into a continuous boot, or ocrea.

This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).

单词	ocrea
释义	ocrean. Brit. /ˈɒkrɪə/, U.S. /ˈɑkriə/ Inflections: Plural ocreae. Forms: 1800s– ochrea, 1800s– ocrea. Origin: A borrowing from Latin. Etymon: Latin ocrea. Etymology: < classical Latin ocrea a greave or legging, worn by foot-soldiers, hunters, and country people; of uncertain origin. Compare Italian ocrea (1834). Perhaps compare earlier oker n.The form ochrea is unexplained. 1. Botany. A dry sheath around a stem or stalk; (usually) spec. one formed by the cohesion of two or more stipules, characteristic of the dock family Polygonaceae. ΘΚΠ the world > plants > part of plant > leaf > petiole or leaf-stalk > [noun] > stipule mantle1672 stipula1763 stipule1793 stipe1821 stipel1821 ocrea1830 paraphyllium1832 stipella1832 the world > plants > particular plants > moss > [noun] > parts of moutha1398 fimbria1752 calyptra1753 veil1760 lid1776 apophysis1785 operculum1788 peristoma1792 peristome1799 peristomium1806 hair-point1818 vaginula1818 perigynium1821 vaginule1821 gemma1830 paraphyllium1832 tympanum1832 perigon1857 pseudopodium1861 commissure1863 ocrea1863 cap1864 chaeta1866 struma1866 membranulet1891 pyxis1900 pseudopod1914 annulus- 1830 J. Lindley Introd. Nat. Syst. Bot. 169 The cohesion of the scarious stipulæ into a sheath, technically called an ochrea, or boot, is sufficient to distinguish Polygoneæ from all other plants. 1863 M. J. Berkeley Handbk. Brit. Mosses Gloss. 312 Ocrea, a little sheath sometimes investing the base of the fruitstalk, distinct from the vaginula. 1876 Bot. Bull. 1 14 Polygonum Hartwrightii,..ochreae leaf-like to the middle, hypocrateriform. 1901 Bot. Gaz. 31 408 Arnica celsa... Middle stem leaves longest.., sessile or with short petioles and ocreae. 1933 Philos. Trans. (Royal Soc.) B. 222 188 Scytonema androsense... At certain levels, the lamellæ are strongly divergent, and spread out to form broad, pale green or colourless funnel-shaped ocreae. 1976 Flora Europaea I. 77/1 P[olygonum] esquetiforme... Ochreae hyaline, brownish towards the base, much shorter than the internodes. 1992 M. Ingrouille Diversity & Evol. Land Plants 41 In the family Polygonaceae the leaf sheath is extended into a kind of collar called an ochrea. 1995 Brittonia 47 346/1 This clade is easily diagnosed by several unique synapomorphies, including loss of the ocrea in the adult leaves. †2. Zoology. A sheath resembling the ocrea of a plant; spec. the boot (boot n.³ 6f) of a bird. Obsolete. rare. ΘΚΠ the world > life > biology > physical aspects or shapes > specific areas or structures > [noun] > outer covering hameOE curtel1398 pelliculea1400 coatc1400 pellicle?a1425 investment1646 tegument1646 cataphragm1656 integument1664 cortexa1676 vagina1683 vaginula1698 scabbard1753 sheath1805 calyx1851 ocrea1890 tunica adventitia1890 the world > animals > birds > parts of or bird defined by > [noun] > feet > part of sheath1781 instep1783 pad1837 ocrea1890 1890 Cent. Dict. at Ocreatæ In Sundevall's classification of birds,..so called from the fusion of the tarsal envelop into a continuous boot, or ocrea. This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022). < n.1830
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