Definition of Ray floret. Meaning of Ray floret. Synonyms of Ray floret
Here you will find one or more explanations in English for the word Ray floret. Also in the bottom left of the page several parts of wikipedia pages related to the word Ray floret and, of course, Ray floret synonyms and on the right images related to the word Ray floret.
Definition of Ray floret
Ray floretRay Ray, n. [OF. rai, F. rais, fr. L. radius a beam or ray,
staff, rod, spoke of a wheel. Cf. Radius.]
1. One of a number of lines or parts diverging from a common
point or center, like the radii of a circle; as, a star of
2. (Bot.) A radiating part of the flower or plant; the
marginal florets of a compound flower, as an aster or a
sunflower; one of the pedicels of an umbel or other
circular flower cluster; radius. See Radius.
(a) One of the radiating spines, or cartilages, supporting
the fins of fishes.
(b) One of the spheromeres of a radiate, especially one of
the arms of a starfish or an ophiuran.
(a) A line of light or heat proceeding from a radiant or
reflecting point; a single element of light or heat
propagated continuously; as, a solar ray; a polarized
(b) One of the component elements of the total radiation
from a body; any definite or limited portion of the
spectrum; as, the red ray; the violet ray. See Illust.
5. Sight; perception; vision; -- from an old theory of
vision, that sight was something which proceeded from the
eye to the object seen.
All eyes direct their rays On him, and crowds turn
coxcombs as they gaze. --Pope.
6. (Geom.) One of a system of diverging lines passing through
a point, and regarded as extending indefinitely in both
directions. See Half-ray.
Bundle of rays. (Geom.) See Pencil of rays, below.
Extraordinary ray (Opt.), that one or two parts of a ray
divided by double refraction which does not follow the
ordinary law of refraction.
Ordinary ray (Opt.) that one of the two parts of a ray
divided by double refraction which follows the usual or
ordinary law of refraction.
Pencil of rays (Geom.), a definite system of rays.
Ray flower, or Ray floret (Bot.), one of the marginal
flowers of the capitulum in such composite plants as the
aster, goldenrod, daisy, and sunflower. They have an
elongated, strap-shaped corolla, while the corollas of the
disk flowers are tubular and five-lobed.
Ray point (Geom.), the common point of a pencil of rays.
R["o]ntgen ray(Phys.), a kind of ray generated in a very
highly exhausted vacuum tube by the electrical discharge.
It is capable of passing through many bodies opaque to
light, and producing photographic and fluorescent effects
by which means pictures showing the internal structure of
opaque objects are made, called radiographs, or sciagraphs
Meaning of Ray floret from wikipedia
in the Carduoideae, while
kind is more widespread. Ray florets
are always highly zygomorphic
and are characterised
by the presence
- The simple
row of ray florets
is white, yellow, or red; many horticultural specimens
have been bred to bear many rows of ray florets
in a great
name Compositae) with both central
and surrounding ray florets
. Each floret
is a flower
in its own right, but is often incorrectly
- two rows of hairy
bracts; in the wild plant
they have a single
ring of ray florets surrounding
disc florets. The disc florets
- ray florets
disc florets. The phyllaries
(a bract under
the flowerhead) has long spreading
hairs. Each phyllary
is ****ociated with a ray
is also a strap-shaped extension
of the corolla, such as that of a ray floret
in the daisy family
Asteraceae. The ligule
is part of the leaf...
- florets, ray florets
near the edge and disk florets
in the center. Homogamous heads
are made up of just one type of floret, either
all ray florets
- over 300. Some species
have ray florets
of yellow, or white
bases. Some species
lack true ray florets
but have flat yellowish
- one or more wide, terminal capitula
(flower heads), with bright yellow ray florets
at the outside
as a brown/red) disc...
- daisy. Gerbera species
bear a large capitulum
with striking, two-lipped ray florets
in yellow, orange, white, pink or red colours. The capitulum, which
Recent Searches ...
Related images to Ray floret