See also:DODDER (Frisian See also:dodd, a bunch; Dutch dot, ravelled See also:- THREAD (0. Eng. praed, literally, that which is twisted, prawan, to twist, to throw, cf. " throwster," a silk-winder, Ger. drehen, to twist, turn, Du. draad, Ger. Draht, thread, wire)
thread)
, the popular name of the See also:annual, leafless, See also:twining, parasitic See also:plants forming the genus Cuscuta, formerly regarded as representing a distinct natural See also:- ORDER
- ORDER (through Fr. ordre, for earlier ordene, from Lat. ordo, ordinis, rank, service, arrangement; the ultimate source is generally taken to be the root seen in Lat. oriri, rise, arise, begin; cf. " origin ")
- ORDER, HOLY
order Cuscutaceae, but now generally ranked as a tribe of the natural order See also:Convolvulaceae
.
The genus contains nearly See also:loo See also:species and is widely distributed in the temperate and warmer parts of the See also:earth
.
The slender See also:- THREAD (0. Eng. praed, literally, that which is twisted, prawan, to twist, to throw, cf. " throwster," a silk-winder, Ger. drehen, to twist, turn, Du. draad, Ger. Draht, thread, wire)
thread-like See also:stem is See also:- WHITE
- WHITE, ANDREW DICKSON (1832– )
- WHITE, GILBERT (1720–1793)
- WHITE, HENRY KIRKE (1785-1806)
- WHITE, HUGH LAWSON (1773-1840)
- WHITE, JOSEPH BLANCO (1775-1841)
- WHITE, RICHARD GRANT (1822-1885)
- WHITE, ROBERT (1645-1704)
- WHITE, SIR GEORGE STUART (1835– )
- WHITE, SIR THOMAS (1492-1567)
- WHITE, SIR WILLIAM ARTHUR (1824--1891)
- WHITE, SIR WILLIAM HENRY (1845– )
- WHITE, THOMAS (1628-1698)
- WHITE, THOMAS (c. 1550-1624)
white, yellow, or red in See also:colour, bears no leaves, and attaches itself by suckers to the stem or leaves of some other plant See also:round which it twines and from which it derives its nourishment
.
It bears clusters of small See also:flowers with a four- or five-toothed calyx, a See also:cup-shaped corolla with four or five stamens inserted on its See also:tube, and sometimes a See also:ring of scales below the stamens; the two-celled ovary becomes when ripe a See also:capsule splitting by a ring just above the See also:base
.
The seeds are angular and contain a thread-like spirally coiled embryo which bears no cotyledons
.
On coming in contact with the living stem of some other plant the seedling See also:dodder throws out a sucker, by which it attaches itself and begins to absorb the See also:sap of its See also:foster-See also:parent; it then soon ceases to have any connexion with the ground
.
As it grows, it throws out fresh suckers, establishing itself firmly on the See also:host-plant, (fig
.
2)
.
After making a few turns round one stem the dodder finds its way to another, and thus it continues twining and branching till it resembles " See also:fine, closely-tangled, wet See also:cat-gut." The injury done to See also:flax, See also:clover, See also:hop and See also:bean crops by species of dodder is often very See also:great
..
C. europaea, the greater dodder (fig
.
1) is found parasitic on nettles, thistles, vetches and the hop; C
.
Epilinum, on flax; C
.
Epithymum, on See also:furze, lingand See also:thyme
.
C
.
Trifolii, the Clover Dodder, is perhaps a sub-species of the last mentioned
.
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