Angiosperms (Flowering Plants) • Earth.com

Dorstenia mannii

(Dorstenia mannii)

galery
en

Description

Dorstenia mannii is a plant species in the genus Dorstenia. Dorstenia is a genus within the mulberry family, Moraceae. Depending on the author, there are said to be 100 to 170 species within this genus, second only in number to the genus Ficus within Moraceae. Dorstenia species are mainly known for their unusual inflorescences and growth habits. Dorstenia is named in honor of the German physician and botanist Theodor Dorsten (1492–1552). The type species is Dorstenia contrajerva. Dorstenia is unique in the family Moraceae because of the extremely diverse growth habits and forms of its species. While the majority of Moraceae are woody perennials, Dorstenia species are predominantly herbaceous, succulent, or suffrutescent perennials. Only 10% exhibit the typical woody habit of the Moraceae. Dorstenia gigas from Socotra. Dorstenia foetida from East Africa and Arabia. The spectrum of the genus Dorstenia ranges from small annuals to perennial herbaceous plants with and without rhizomes or tubers, geophytes, lithophytes, epiphytes, woody shrubs and succulents (stem or leaf succulents). Their juice is mostly milky white, rarely yellow or colorless. The hairs that are found on most species are at least partially hook-shaped. The leaves mostly are arranged in spirals and rosettes, and rarely as two-rowed leaves. The leaf blades may be shield-, hand- or foot-shaped, whole, incised, lobed or feathered. Usually the leaf edges are perforated or notched. The ever-present stipulae are also variable in shape. Usually they are leathery, sometimes large, leaf-like and durable or sometimes small, awl-shaped and quickly falling off.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Magnoliopsida
Order:Rosales
Family:Moraceae
Genus:Dorstenia
News coming your way
The biggest news about our planet delivered to you each day