Icacinaceae

Cassinopsis ilicifolia

The Icacinaceae are a family of tropical and subtropical plant species.

Description

The Icacinaceae are woody plants: trees, shrubs or lianas. In some liana species occurs from the stem axis in case of damage, a white milky sap; other species do not have such colored latex. The mostly alternate, beieinige Liane species probably against constantly arranged leaves are usually not stalked. The leathery leaf blades are easy. The leaf margin is often lobed or toothed. Stipules are not available.

The inflorescences are zymös, paniculate or structured differently. The unisexual or hermaphrodite flowers are often inconspicuous. The small flowers are radial symmetry tetra- cyclic ( it is only a stamen circle any) and usually four or fünfzählig ( rarely three or sechszählig ). There are no or four or five ( rarely three or six) sepals present. There are no or four or five ( rarely three or six) petals present; they are all grown free or all. The four or five ( rarely three or six) stamens are mutually free. Most three ( rarely two, four, or five) carpels are fused into a superior ovaries. The only stamp per flower ends in one to five scars.

The fruits are fleshy drupes or Samaras, which are seeded, nut winged fruits; in some species the fruits are edible.

Systematics and distribution

They are found mainly in the tropics and subtropics, but there are also some taxa in temperate South Africa and eastern Australia.

The Icacinaceae be allocated within the Euasteriden I no order, since their exact position is not clear within this group.

The internal classification of the Icacinaceae family is controversial, it will be 24 or 25 (or in some authors 35-52 ) assigned to genera. It belong to the family according to the number of the attributed species 149 to 400 species. The APWebsite follows the opinion of Kårehed (2001, 2002) according to which the family has the smaller circumference 24 to 25 genera with more than 150 species.

Uncontradicted include the following genera of the family:

• Alsodeiopsis Olive. The approximately eleven species occur in tropical Africa.
• Apodytes E.Mey. ex Arn: The approximately 15 species in the tropics - particularly in Africa - widespread..
• Calatola Standlschmaus. The approximately seven species coming from Mexico to Ecuador before.
• Casimir Ella Hassl. The approximately seven species are widespread in the Neotropics.
• Cassinopsis Sond. The six species occur in Africa and Madagascar.
• Chlamydocarya Baill. The six species are widespread in tropical Africa.
• Desmostachys Planch. ex Miers: The approximately seven species are widespread in tropical Africa and in Madagascar.
• Emmotum Desv. ex Ham:. The approximately twelve species are distributed in tropical South America.
• Hosiea Hemsl. & EHWilson: The only two species occur in China and Japan.
• Icacina A.Juss. The six species are widespread in tropical Africa.
• Iodes flower: The approximately 28 species are widespread in the tropics.
• Lavigeria Pierre: It contains only one type: Lavigeria macrocarpa ( Oliv. ) Pierre: They occur in tropical West Africa.

• Leretia cordata Vell. It occurs in tropical South America.

• Merrilliodendron rotense Kaneh. It occurs in the Philippines and on islands of the Western Pacific.

• Natsiatopsis thunbergiifolia short: It occurs only in Myanmar.

• Natsiatum herpeticum Buch.-Ham. ex Arn. It comes from the eastern Himalayas to Southeast Asia.

• Pittosporopsis kerrii Craib: It occurs in Southeast Asia.

• Polyporandra scandens Becc. It occurs in eastern Malaysia's and in Melanesia.

Swell

• The Icacinaceae family in APWebsite. (Sections Description and systematics, to the extent of 24-25 genera )
• The Icacinaceae family at DELTA. ( Description section, of 52 genera )
• Hua Peng & Richard A. Howard: Icacinaceae, pp. 505 - text the same online as printed work, In: Wu Zheng -yi, Peter H. Raven & Deyuan Hong (eds.): Flora of China, Volume 11 - Oxalidaceae through Aceraceae, . Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 2008 ISBN 978-1-930723-73-3 ( description section, of 57 genera )