Myricaceae

Bog myrtle ( Myrica gale ), female plant with unripe fruit.

The myrtle family ( Myricaceae ) are a plant family of the order book -like ( fagales ). This family includes three genera with about 57 species. The species of this family have areas almost worldwide, except in Australia.

Description

All species are woody plants: trees or shrubs. They are evergreen or deciduous. They smell aromatic and often contain resin. They usually have shield-shaped, multicellular glandular hairs.

The alternate and spirally arranged leaves fragrant aromatic and are divided into petiole and leaf blade. The leaf blades are usually simple and entire or rarely lobed irregularly cut up, just the only kind of monotypic genus Comptonia has deeply sinuate leaf blades. Stipules usually absent.

The plant species are on ( monoecious ) or dioecious ( dioecious ) getrenntgeschlechtig. The pendant, aged men inflorescences are simple or compound and often see the kittens the other book -like similar. The usually unisexual flowers are reduced. Bracts absent. The male flowers are each individually on a supporting sheet and usually contain four to eight (one to 20 ) stamens with thin, short, free or fused at their base more than stamens and erect anthers. The female flowers are each individually or in pairs to a thesis on bracts and usually about two to four cover pages and include two carpels, which fused into one, usually unilocular ovary, which has only a basal, erect, orthotropic ovule. There are at most a short style and always two scars present. Pollination is by wind ( anemophily ).

The stone fruits or nuts are covered with smooth or warts, which often have a wax coating. The endocarp is hard. The fruits are sometimes shrouded in durable support and cover sheets. The seeds contain almost no endosperm and the embryo has just two fleshy, plano -convex cotyledons ( cotyledons ).

System

The Myricaceae family in 1817 by Louis Claude Marie Richard Karl Sigismund Kunth in: Nova genera erected et Species Plantarum, 4th Edition, Volume 2, page 16. Type genus Myrica is. A synonym for Myricaceae Rich. ex Kunth is Galeaceae Bubani.

In the family Myricaceae there are three genera, two of which are monotypic, with a total of about 57 species:

• Comptonia L' Hér. ex Aiton: it contains only one type: Comptonia peregrina (L.) JMCoult. It is native to North America.

• Canacomyrica monticola Guillaumin: This small tree is endemic to New Caledonia in the southern part of Grande Terre and grows there only on ultramafic igneous rocks.

Ecology

There is a root symbiosis with nitrogen-fixing bacteria of the genus Frankia alni.

Swell

• The Myricaceae in APWebsite family. (Section Description and systematics)
• The Myricaceae at DELTA by L. Watson & MJ Dallwitz family. ( Description section )
• Allan J. Bornstein: Myricaceae - text the same online as printed work, In: Flora of North America Editorial Committee ( eds.): Flora of North America North of Mexico, Volume 3 - Magnoliidae and Hamamelidae, Oxford University Press, New York and Oxford, in 1997. ISBN 0-19-511246-6 (Sections Description and systematics)
• Anmin Lu & Allan J. Bornstein: Myricaceae, pp. 275 - text the same online as printed work, In: Wu Zheng -yi and Peter H. Raven (eds.): Flora of China, Volume 4 - Cycadaceae through Fagaceae, Science Press and Missouri Botanical Garden Press, Beijing and St. Louis, 1999. ISBN 0-915279-70-3 (Sections Description and systematics)