10 LIVRES EN ANGLAIS EN RAPPORT AVEC «RAY FLORET»
Découvrez l'usage de
ray floret dans la sélection bibliographique suivante. Des livres en rapport avec
ray floret et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Common Families of Flowering Plants
Corolla: 5.25 mm Pappus: 3.5 mm Dl. A ray-floret. The corolla surrounds a style
that usually branches into 2 stigmas but may be unbranched (see D2). The
pappus is absent from ray-florets. Note the hairs on the corolla-tube. D2. Upper
portion ...
2
Modern Plant Taxonomy, 1E
K(5), C(5y A5, G^- Asteraceae (Composiiac): Centaurea cyanus: Ray floret —
Neuter, KQ, C(5), AQ, G0; Disc floret—©, ?, K , C,,., A,,,, Gp=r ' T' pappus' (5)' (5)' (
2) Carihamus oxycaniha L.: ©, ?, K , C,c„ A.c., Crzr pappus' (5)' (5)' (2) Sonchus ...
3
A Contribution to the Life History of Silphium ...
I. First appearance of individual florets: 1!, disk floret; r, ray floret; brl, br2, bracts
on receptable; z', involucral bract. FIG. 2. A later stage: parts lettered as in fig. 1.
FIGS. 3-11. Successive stages in development of disk floret: each part lettered on
...
William Dayton Merrell, 1900
First appearance of individual florets: d, disk floret; r, ray floret; brx, br2, bracts on
receptable ; i, involucral bract. Fig. 2. A later stage : parts lettered as in fig . 1. Figs
. 3-1 1. Successive stages in development of disk floret: each part lettered on its ...
John Merle Coulter, M.S. Coulter, Charles Reid Barnes, 1900
5
The collected works of Sir Humphry Davy ...: Discourses ...
F1rst appearance of individual florets: d, disk floret; r, ray floret; brx, br2, bracts on
receptable ; i, involucral bract. F1g. 2. A later stage : parts lettered as in fig . 1.
F1gs. 3—1 1. Successive stages in development of disk floret: each part lettered
...
John Merle Coulter, Sir Humphry Davy, John Davy, 1900
PLA TE III All figures magnified 130 diameters. Fig. 1. First appearance of
individual florets: d, disk floret; ;-, ray floret ; brit br2, bracts on receptable ; /,
involucral bract. Fig. 2. A later stage: parts lettered as in fig. 1. Figs. 3-1 i.
Successive stages ...
7
Together With Biology Lab Manual-Xii
\iS"^ Hjktt , -Ray Floret (Capitulum -Disc Floret inflorescence) _ ^ -Leaf Stem
Flowering twig Anthers Filaments Syngenesious stamens Stigma Stamen
Tubular corolla ^ Pappus (Calyx) Inferior ovary Disc floret Petals Pappus (Calyx)
Sterile ...
8
Competition Science Vision
Floral diagram of Helianthus annuus Ray Floret = Br% O K5(pappUS) C5 A0 G(2)
5(Pappus) Disc Floret = Bred* K Pollination and Seed Dispersal The members of
Asteraceae are cross pollinated by a large variety of insects. Small flowers are ...
9
Comprehensive MCQs in Biology
(a) Ray floret. Zygomorphic, ligulate pistilate or neutral, epigynous. Calyx. Sepals
absent or modified into pappus. Corolla. Petals five, fused, coloured ligulate, val-
vate aestivation. Androecium. Stamen is generally absent. Gynoecium.
Hemant Roy Sri, Shri Hemant Roy
10
Flowering Plants. Eudicots: Asterales
with white tomentum; involucre gradate; ray floret limbs linear; disc corollas
funnelform, tubes 2–3 times as long as lobes; thecae pale, base not tailed nor
noticeably lobed; style branches longer than scabrid upper style shaft; cypselae ...
Joachim W. Kadereit, Charles Jeffrey, 2007
5 ACTUALITÉS CONTENANT LE TERME «RAY FLORET»
Découvrez de quoi on parle dans les médias nationaux et internationaux et comment le terme
ray floret est employé dans le contexte des actualités suivantes.
A floral masterpiece
Each of the plant's slender ray florets is female, with a long stigma which is split ... of a visiting insect, for onward transport to a female ray floret of another plant. «The Guardian, mars 15»
Violet-blue chrysanthemums
... substitution of anthocyanin chromophore from cyanidin to delphinidin dramatically changed chrysanthemum ray floret color from magenta/pink to purple/violet. «OUPblog, nov 13»
Gardening: The Aster family is full of tall yellow bee magnets
Each ray floret (what we would call a petal) usually has scalloped tips — one way to distinguish this species from other daisies. There are many varieties of ... «Carlisle Sentinel, sept 13»
Scientists Map Genetic Mutation Depicted in Vincent van Gogh's …
While ray florets are sterile, disc florets can mature into seeds. The mutants in van Gogh's paintings, Burke explains, have multiple levels of spiraling yellow ray ... «Audubon Magazine, avril 12»
Gene behind van Gogh's sunflowers pinpointed
A wild sunflower (Helianthus annuus) is not so much a single flower as a composite of tiny florets. The golden ray florets, located at the sunflower's rim, resemble ... «Nature.com, mars 12»
