[permalink] [id link]
The pistillate ( female ) flowers are also without calyx or corolla, and consist of a single ovary accompanied by a small, flat nectar gland and inserted on the base of a scale which is likewise borne on the rachis of a catkin.
from
Wikipedia
Some Related Sentences
pistillate and female
Cannabis normally has imperfect flowers, with staminate " male " and pistillate " female " flowers occurring on separate plants.
Although monoecious plants are often referred to as " hermaphrodites ," true hermaphrodites ( which are less common ) bear staminate and pistillate structures on individual flowers, whereas monoecious plants bear male and female flowers at different locations on the same plant.
A plant with only functional carpels is called pistillate, or ( inaccurately ) female.
The flowers are wind-pollinated, and monoecious, with staminate and pistillate catkins on the same tree ; the male catkins are pendulous, up to long ; the female catkins are small, with three to six flowers clustered together.
Each pistillate ( female ) flower is solitary and has a three-lobed ovary, three styles, and no petals.
Unlike most modern grapes it is a pistillate female and so needs to be planted next to male vines from a close sibling variety to achieve pollination.
The male ( staminate ) flowers are produced in an oblong inflorescence, and the female ( pistillate ) flowers in a globular inflorescence.
pistillate and flowers
Some flowers are functionally staminate ( where a pistil may be present but has no ovules capable of being fertilized ) while others are functionally pistillate ( where stamens are present but their anthers do not produce viable pollen ).
Two stamen are longer and stamens of pistillate flowers are rudimentary.
Nearly half of fig species are gynodioecious, and therefore have some plants with inflorescences ( syconium ) with long styled pistillate flowers, and other plants with staminate flowers mixed with short styled pistillate flowers.
The pistillate and staminate flowers are on different trees ; both are inconspicuous ; but the fruit is very much in evidence.
In the pistillate flowers, ovaries are 1-celled or sometimes 4-5-celled.
Staminate flowers are borne on aments that develop from buds formed in the leaf axils of the previous year, and pistillate flowers are borne on short stalks from the axils of current-year leaves.
Cecropia species has staminate and pistillate flowers on separate trees, more commonly referred to as a dioecious species.
The staminate flowers are borne in catkins that develop from the leaf axils of the previous year, and the pistillate flowers develop from the axils of the current year's leaves.
Silk is the name for the pistillate flowers, which emerge from the husk.
The pistillate flowers are borne in the axils of the current year's leaves and may be solitary or occur in two-to many-flowered spikes.
The pistillate flowers are solitary and borne at the angles of the rachis and are partially sunken in it in the form of a cup.
pistillate and are
The pistillate aments are erect or pendulous, solitary ; terminal on the two-leaved lateral spur-like branchlets of the year.
The pistillate scales are oblong-ovate, three-lobed, pale yellow green often tinged with red, becoming brown at maturity.
The ray florets are pistillate and fertile.
pistillate and also
The pistillate inflorescences are also one to two metres long unbranched and the flowers are borne on a zig-zagging rachilla.
A few, however, such as ' Carlos ' and ' Noble ', are perfect-flowered, produce fruit with their own pollen, and may also pollinate pistillate cultivars.
pistillate and ovary
The pistillate flowers have a superior ovary.
pistillate and small
* Stamens: Ten, five long and five short, free, included ; filaments thread-like ; anthers orange colored, introrse ; in the pistillate flower small and sterile.
The staminate flowers are arranged in small bunches and the pistillate flowers grow on long racemes which will become the long strands of fruit.
pistillate and on
Staminate and pistillate heads on separate peduncles.
Staminate heads dark red, on axillary peduncles ; pistillate heads light green tinged with red, on longer terminal peduncles.
The inflorescence in Xanthosoma is composed of a spadix with pistillate flowers at the base, a belt of sterile flowers offered as a reward for pollinators in the middle and staminate flowers on the upper part.
The inflorescences last for two nights and are protogynous in some species ( though not others (), changing from the pistillate phase that attracts pollinators on the night it opens, to a staminate phase on the second night, when pollen is shed.
Dynastines arrive covered with pollen from another inflorescence and remain in the spathe tube for 24 hours, pollinating the pistillate flowers as they feed on the sterile area of the spadix.
pistillate and which
In summer, the pistillate flower matures into a red to orange, sweet, juicy fruit diameter, which is an important food for wild animals.
pistillate and is
Although the flowering is dioecious, the pistillate tree even when isolated will bear large oranges, perfect to the sight but lacking the seeds.
When the inflorescence is ready to open, the upper part of the spathe opens and exposes the staminate area of the spadix ; the basal area of the spathe remains closed, forming a spacious chamber ( i. e., the spathe tube ) that encloses the pistillate and sterile flowers ().
( The species is unisexual, and the specimen in question had only pistillate flowers.
pistillate and .
Of pistillate flowers three to six, usually four, rounded sepals, much shorter than the acute petals.
female and flowers
The flowers are catkins with elongate male catkins on the same plant as shorter female catkins, often before leaves appear ; they are mainly wind-pollinated, but also visited by bees to a small extent.
The flowers are unisexual, with male and female flowers on different plants ( dioecious ) or on the same plant ( monoecious ).
The female flowers have inferior ovaries.
The ancients had a variety of ideas about heredity: Theophrastus proposed that male flowers caused female flowers to ripen ; Hippocrates speculated that " seeds " were produced by various body parts and transmitted to offspring at the time of conception ; and Aristotle thought that male and female semen mixed at conception.
The flowers of a mature female plant contain the most trichomes, though trichomes are found on other parts of the plant.
He says that " the female date-trees or palms do not bear fruit unless the branches of the male and female plants are mixed together ; or, as is generally done, unless the dust found in the male sheath or male flowers is sprinkled over the female flowers ".
In addition, in the late 1970s Janzen and Mary Willson, noting that male flowers are often larger than female flowers, expanded the field of sexual selection into plants.
V. planifolia flowers are hermaphroditic: They carry both male ( anther ) and female ( stigma ) organs ; however, to avoid self-pollination, a membrane separates those organs.
It is not unusual, however, for individual plants to bear both male and female flowers.
Male flowers are normally borne on loose panicles, and female flowers are borne on racemes.
0.485 seconds.