fallen leaves

[Seed Plant Encyclopedia #058] What are the species of the Dioscoreaceae family? Photo list

The family Dioscoreaceae consists of herbaceous or climbing plants, comprising over 630 species across three genera distributed worldwide, primarily in tropical and subtropical regions. In Japan, only the genus Dioscorea is found. This article provides a comprehensive, field-guide-style introduction to plants of the Dioscoreaceae family. Basic information is available from the Kanagawa Prefectural Botanical Garden...

2022.08.01

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #039] What are the species of the Lauraceae family? Photo list

The Lauraceae family consists of evergreen or deciduous woody plants. Their leaves are arranged alternately or oppositely. Many species are fragrant. Approximately 31 genera and 2,000 species are known from tropical to temperate regions, with 9 genera and 29 species distributed in Japan. Several species are cultivated. This article focuses on plants of the Lauraceae family...

2022.07.28

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #033] What are the species of the Calycanthaceae family? Photo list

The Calycanthaceae family consists of fragrant, deciduous shrubs reaching 2-4 meters in height, with the exception of Idiospermum, which grows into a large evergreen tree. It comprises 3 genera and 10 species, and its distribution is limited to warm temperate and tropical regions. Calycanthus (3 species; western North America...).

2022.07.27

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #032] What are the species of the Annonaceae family? Photo list

The Annonaceae family consists of evergreen, rarely deciduous, trees or shrubs, sometimes climbing woody plants. Approximately 130 genera and 2,300 species are known, found in the tropical and subtropical regions of Asia, America, and Africa. In Japan, there is one species, Monoon liukiuense, found in the Ryukyu Islands...

2022.07.27

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #028] What are the species of the Magnoliaceae family? Photo list

The Magnoliaceae family consists of evergreen or deciduous woody plants. The leaves are simple and alternate. The perianth segments are separate and whorled, exhibiting triperality. The stamens and pistils are numerous and arranged spirally. Approximately 300 species across two genera are known in the temperate and subtropical regions of Asia and America, with 7 species in one genus found in Japan...

2022.07.27

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #026] What are the species of the Aristolochiaceae family? Photo list

The Aristolochiaceae family consists of perennial herbs or shrubs, some of which are climbing plants. The leaves are alternate and lack stipules. The flowers are generally bisexual, with petals usually reduced, and three petal-like sepals, often fused at their bases into a tubular structure. They are found in tropical regions worldwide...

2022.07.26

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #020] What are the species of Schisandraceae? Photo List

The Schisandraceae family consists of evergreen or deciduous woody plants, some of which are climbing. The leaves are simple, alternate, and lack stipules. Flowers are usually solitary in the leaf axils, lacking a clear distinction between sepals and petals, and the perianth segments are separate. The fruit is an aggregate fruit, consisting of berries clustered in a spherical or tufted arrangement, or a sac...

2022.07.25

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #011] What are the species of the cypress family? Photo list

The Cupressaceae family consists of evergreen, rarely deciduous, trees or shrubs. Leaves are scale-like, needle-like, or linear, arranged alternately, oppositely, or whorled. Flowers are unisexual, monoecious, rarely dioecious. Male flowers are borne at the tips of branches. Female flowers are also often borne at the branch tips and have scale-like structures arranged oppositely or whorled...

2022.07.25

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #007] What are the species of the Pinaceae family? Photo list

The Pinaceae family consists of evergreen, sometimes deciduous, trees or shrubs. The leaves are needle-shaped or linear. The flowers are unisexual and monoecious. Male flowers have numerous stamens arranged spirally. Female flowers consist of numerous scales arranged spirally. Each scale is composed of an outer bract and an inner seed scale, fused at their bases...

2022.07.22

Seed Plant Encyclopedia

[Seed Plant Encyclopedia #003] What are the species of the Ginkgo family? Photo list

The Ginkgoaceae family consists of deciduous trees. The leaves are flattened and spread out, with veins repeatedly branching dichotomously from the base of the petiole, becoming parallel veins that reach the upper leaf margin. They are dioecious; male flowers bear numerous anthers on a slender stalk. Female flowers typically have two ovules facing upwards at the end of the pedicel. Fertilization occurs...

2022.07.14

Seed Plant Encyclopedia