phylloden.
/ˈfɪləʊd/, U.S. /ˈfɪˌloʊd/ 1. Botany. An expanded, usually flattened petiole resembling and functioning as a leaf-blade, the true leaf-blade being absent or much reduced in size, as in many acacias and in pitcher plants of the genus Sarracenia.
ΘΚΠ
the world > plants > part of plant > leaf > petiole or leaf-stalk > [noun]
footstalk1562
leaf stalka1671
petiolus1707
petiole1753
petiolule1792
subpetiole1827
stalklet1835
phyllodium1840
phyllode1848
1848 J. Lindley Introd. Bot. (ed. 4) I. 297 The curious transformation undergone by the petiole when it becomes a phyllode.
1861 R. Bentley Man. Bot. i. iii. 182 To such a petiole the name of phyllodium or phyllode has been applied.
1914 F. E. Fritsch & E. J. Salisbury Introd. Study Plants xiii. 177 The blade has become reduced and its functions taken on by vertically expanded petioles (so-called phyllodes, well seen in species of Acacia, but not found in the British flora).
1952 P. Mann Systematics Flowering Plants ii. 123 In Grass Vetchling the lamina does not develop, while the petiole has broadened to form a leaf-like structure (phyllode).
1992 M. Ingrouille Diversity & Evol. Land Plants 44 Leaves of this sort are known from other groups where they are called phyllodes.
2. Zoology. = petal n. 2.
ΘΚΠ
the world > plants > part of plant > reproductive part(s) > flower or part containing reproductive organs > [noun] > parts of > petal
leafeOE
fall1629
petalum1687
petal1712
petalon1720
flower-leaf1727
leafit1830
leaflet1855
phyllode1874
1874 Philos. Trans. (Royal Soc.) 164 747 Teeth are entirely wanting, and there is no trace of either phyllodes or bourrelets.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 557 In the Cassidulidae the peristomial ends of the ambulacra dilate into petala or phyllodes, forming a figure known as floscella.
1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) viii. 208 Five ambulacral grooves of petaloid appearance (phyllodes).
1993 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. (ed. 3) ix. 271/2 Certain irregular echinoids..and a few regular genera have specialized ambulacral structures in the vicinity of the mouth. These are the phyllodes: areas in which the ambulacrum expands into a leaf-like shape close to the peristome.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
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n.1848