bractn.
/brakt/, U.S. /bræk(t)/ 1. Botany.
a. A small modified leaf, or scale, growing immediately below the calyx of a plant, or upon the peduncle of a flower.
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
1771 J. Ellis in Philos. Trans. 1770 (Royal Soc.) 60 520 Under this flower-cup are four floral leaves, or bracteæ.
1785 T. Martyn tr. J.-J. Rousseau Lett. Elements Bot. xiii. 155 A lateral leaf to each calyx, which Linnæus calls the..bracte.
1807 J. E. Smith Introd. Physiol. & Systematical Bot. 22 The Lavenders..have coloured bracteas.
1835 J. Lindley Introd. Bot. (1848) I. 309 There are..no exact limits between bracts and common leaves.
1884 J. E. Taylor Sagacity of Plants 103 In the Yew..some bracts become aborted.
b. attributive, as in bract-sheath.
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
1870 J. D. Hooker Student's Flora Brit. Islands 415 Carex præcox..bract-sheaths short.
2. Zoology. A similar appendage found in some of the Hydrozoa.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Diploblastica > phylum Coelenterata > [noun] > class Hydrozoa > order Siphonophora > member of > appendage
bract1878
1878 F. J. Bell & E. R. Lankester tr. C. Gegenbaur Elements Compar. Anat. 97 Nutritive, generative, and tentacular individuals are generally placed together in groups, in such a way that there is one bract to a group.
Derivatives
ˈbractless adj.
ΘΚΠ
the world > plants > part of plant > leaf > bract, scale, palea, or spathe > [adjective] > not having bracts
bractless1847
1847 J. Craig New Universal Dict. Bractless, without bracts.
bract-like adj.
ΘΚΠ
the world > plants > part of plant > leaf > bract, scale, palea, or spathe > [adjective] > of or resembling bract, etc.
bracteal1771
glumaceous1828
bract-like1847
spathiform1859
bracteiform1870
hypsophyllary1875
hypsophyllous1880
hypsophyllar-
1847 W. E. Steele Handbk. Field Bot. 167 S[piranthes] autumnalis, root-leaves oblong, those of stem bract-like.
1911 F. O. Bower Plant-life on Land iv. 64 The calyx sprang from bract-like leaves.
This entry has not yet been fully updated (first published 1888; most recently modified version published online March 2022).
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