To avoid damage from pollinating beetles, the carpels of Magnolia flowers are extremely tough.

The flowers are small, and disposed in clusters on short stalks ; the corolla is composed of five yellowish-white petals, the anthers are heart-shaped, and the pistil consists of three carpels united to form a three-chambered ovary.

The only synapomorphy within Moraceae is presence of laticifers and milky sap in all parenchymatous tissues, but generally useful field characters include two carpels sometimes with one reduced, compound inconspicuous flowers, and compound fruits.

In other plants, such as hazel, some flowers have only stamens, others only carpels, but the same plant ( i. e. sporophyte ) has both kinds of flower and so is monoecious. Flowers of European Holly, a dioecious species: male above, female below ( leaves cut to show flowers more clearly )

*** Megasporangia and microsporangia occur on different sporophytes, which are then called dioecious. An individual tree of the European holly ( Ilex aquifolium ) produces either ' male ' flowers which have only functional stamens ( microsporangia ) producing microspores which develop into pollen grains ( microgametophytes ) or ' female ' flowers which have only functional carpels ( megasporangia ) producing megaspores which develop into ovules ( megagametophytes ).

' Female ' willow trees ( megasporophytes ) produce flowers with only carpels ( the megasporangia ).

The flowers are made of 6 tepals, 6 stamens and 3 carpels.

In some species, however, the flowers are unisexual with only carpels or stamens.

Plants adapted to outcross or cross-pollinate often have taller stamens than carpels or use other mechanisms to better ensure the spread of pollen to other plants ' flowers.

The species is dioecious: each flower produces both stamens and carpels, but only one sex develops fully and is fertile in the flowers of an individual plant.

" Scandent herbs, the rootstock a horizontal rhizome, the stem leafy, the leaves spirally arranged or subopposite, the upper ones with cirrhose tips ; flowers solitary, large, borne on long, spreading pedicels, actinomorphic, hermaphrodite ; perianth segments 6, free, lanceolate, keeled within at base, long-persistent ; stamens 6, hypogynous, the anthers extrorse, medifixed and versatile, opening by longitudinal slits ; ovary superior, 3-celled, the carpels cohering only by their inner margins, the ovules numerous, the style deflected at base and projecting from the flower more or less horizontally ; fruit a loculicidal capsule with many seeds "

Some of the species included in the families Pandanaceae and Stemonaceae show flowers that are formed from only one carpel while in Triuridaceae, a family that lacks chlorophyl, the carpels are free from each other.

The plants in both genera are found in high-elevation habitats and have bracteate racemes, pedicellate flowers, six persistent tepals, septal nectaries, three nearly distinct carpels, simultaneous microsporogenesis, monosulcate pollen, and follicular fruits.

Alisma flowers have six stamens, numerous free carpels in a single whorl, each with 1 ovule, and subventral styles.

The flowers are tetramerous: the floral formula ( sepals ; petals ; stamens ; carpels ) is.

The hermaphroditic and completely fertile flowers are almost exactly like the male flowers, but are a little larger and with the carpels well evolute, the latter about as long as the filaments, furnished with a ring of silvery hairs all round.

The flowers are drooping, 8-12 cm in diameter, with nine ( occasionally 12 ) tepals, the outer three small and greenish, sepal-like, the main six larger and pure white ; the stamens and carpels are crimson.

By removing the stamens from unripe flowers, Mendel could brush pollen from another variety on the carpels when they ripened.

The flowers are small, and disposed in little clusters on short stalks ; the corolla is composed of five yellowish-white petals, the anthers are heart-shaped, and the pistil consists of three carpels united to form a three-chambered ovary.

The female flowers have five separate carpels that can each form a woody fruit containing several seeds.

The flowers have three small white petals ; male flowers have 4. 5-5 mm petals and nine stamens, female flowers have 2-3 mm petals and three fused carpels.

It opens by two valves, which are the modified carpels, leaving the seeds attached to a framework made up of the placenta and tissue from the junction between the valves ( replum ).

In botany, seeds are ripened ovules ; fruits are the ripened ovaries or carpels that contain the seeds and a nut is a type of fruit and not a seed.

Homeotic mutations in Arabidopsis result in the change of one organ to another — in the case of the Agamous mutation, for example, stamens become petals and carpels are replaced with a new flower, resulting in a recursively repeated sepal-petal-petal pattern.

According to this model, floral organ identity genes are divided into three classes: class A genes ( which affect sepals and petals ), class B genes ( which affect petals and stamens ), and class C genes ( which affect stamens and carpels ).

The 3 – 5 carpels are partially fused at the base.

Sound persimmons should be ripened till they are fully soft, except that the carpels still might be softly chewy.

Stamens and carpels are not regularly present in each flower or floret.

The genetics behind the formation of petals, in accordance with the ABC model of flower development, are that sepals, petals, stamens, and carpels are modified versions of each other.

The carpels and stamens of orchids are fused into a column.

There are many stamens surrounding many fused carpels.

1-3 ( rarely-6 ) carpels are fused to a superior ovary with 1 ( rarely 2 ) basal ovule.

There are 1 to 3 ( or rarely none ) well differentiated staminodes and a spiral of 4 to 8 free carpels ( apocarpous ).

The carpels of a pome are fused within the " core ".

There can be two to many carpels, which are fused together ( syncarpous ), and there can be two to numerous ovules in each locule, with axile placentation of the ovules.

A pome is an accessory fruit composed of one or more carpels surrounded by accessory tissue.

* Fruit: Narrow light brown cone, formed by many samara-like carpels which fall, leaving the axis persistent all winter.

Centre of a Ranunculus repens ( Creeping Buttercup ) showing multiple unfused carpels surrounded by longer stamens.

Centre of a Tulipa aucheriana ( Tulip ) showing multiple connate carpels ( a compound pistil ) surrounded by stamens.

In some basal angiosperm lineages, for example in Degeneria, native to Fiji, carpels begin as a shallow cup and eventually form a folded, leaf-like structure, sealed at its margins by interlocking hairs.

Sometimes ( e. g., Apocynaceae ) carpels are fused by their styles or stigmas but possess distinct ovaries.

Within the compound ovary, the carpels may have distinct locules divided by walls called septa.

The family can be distinguished from most other eudicot families by the ovary made up of three fused carpels ( usually with three chambers, but one chamber in some species ).