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Moraceae

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The Moraceae family is a diverse group of flowering plants. It is commonly known as the mulberry or fig family. This family includes approximately 48 genera and over 1,100 different species. While many species thrive in tropical and subtropical regions, the family has a cosmopolitan distribution. This means they are found all over the world.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

They are important to many ecosystems and human diets. They provide various fruits and play roles in different climates.

Members of the Moraceae family share specific physical traits. Most species contain latex-producing glands within their leaves and stems. They also possess a milky sap in their soft tissues. The flowers are often small and inconspicuous. These flowers are frequently compound, meaning they are made of many parts. Some flowers are pseudanthia, which are reduced inflorescences that look like single flowers.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

These traits help scientists identify plants belonging to this family.

Reproduction in Moraceae involves complex floral mechanisms. Many flowers are monochlamydeae, meaning they have either petals or sepals, but not both. Most species contain sepals, though *Brosimum gaudichaudii* and *Castilla elastica* are exceptions. Many flowers are also diclinous, which means the pistils and stamens are located in different flowers. The shape of the stamen determines how pollen moves. If the stamen is inflexed, or bent, the pollen is spread by the wind. If the stamen is straight, insects usually perform the pollination.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

Several genera, such as *Ficus* and *Artocarpus*, rely on insect pollination.

Diversity within the family is visible in leaf and fruit structures. Leaves are usually arranged in an alternate pattern, though they can occasionally be opposite. They may be lobed or unlobed, and can be evergreen or deciduous. The red mulberry is a unique example because it can host many different leaf types on one tree. Most Moraceae species are famous for their fleshy fruits. This includes the breadfruit from *Artocarpus altilis* and the jackfruit from *Artocarpus heterophyllus*.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

These fruits contain the seeds necessary for the next generation.

The physical scale of Moraceae is truly remarkable. The family contains some of the world's largest trees, such as the Indian Banyan (*Ficus benghalensis*). In contrast, the species *Dorstenia barnimiana* is a tiny, stemless succulent. This plant is only 2 to 5 cm in diameter. It produces a single leaf on a small stalk. There is an approximately one billionfold difference in mass between the Banyan and this succulent.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

This shows how much variety exists within a single family.

Scientists have used molecular studies to clarify the history of Moraceae. Formerly, these plants were placed in the order Urticales. Recent molecular research has moved the family into the order Rosales. They belong to a clade called the urticalean rosids. This group also includes families like Ulmaceae and Cannabaceae. Evolutionarily, dioecy—where individuals have separate sexes—appears to be the primitive state. However, monoecy has evolved independently at least four times within the family.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

The history of the family stretches back millions of years. The fossil record for Moraceae begins in the late Cretaceous period. Molecular clock estimates suggest the family started to diversify during the mid-Cretaceous. Major clades emerged later during the Tertiary period. Many fossil genera have been identified from this time. These include *Aginoxylon*, *Coussapoites*, and *Protoficus*.

Ficus retusa, Moraceae, Bagh-e-Jinnah
Ficus retusa, Moraceae, Bagh-e-Jinnah

These ancient remains help researchers understand how the family changed over time.

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