Lavatera

Lavatera trimestris 'Pink Beauty'

The shrub poplars ( Lavatera ), also called Strauchmalven or mallow, a plant genus in the family of Malvaceae are ( Malvaceae ). Some Lavatera species there are varieties that are used as ornamental plants. Of the approximately 25 species, most occur in the Mediterranean.

• 4.1 Notes and references

Description

Appearance and leaves

Lavatera species grow as annuals, biennial or short-lived perennial herbaceous plants, subshrubs or shrubs that reach heights of growth of up to 2 meters. Most above-ground parts of plants have star hair or hair simple.

The alternate arranged leaves are divided into a long petiole and leaf blade one. The leaf blades are usually mild to severe five-to siebenlappig not or rarely lobed. The stipules are deciduous leaf-like and durable.

Inflorescences and flowers

The flowers are borne in the leaf axils or in terminal, showy, racemose inflorescences singly or in groups. The three to six bracts of secondary calyx are fused only at their base.

The hermaphrodite, radial symmetry, five petals have a double perianth. The five sepals are fused bell-shaped. The five free petals are nailed up and usually emarginate or truncate rare. The color of the petals ranging from white to pink to purple colors, only in some forms of Lavatera triloba they are yellow. In the subfamily Malvoideae the many stamens are fused into a tube surrounding the stamp. The staminal tube ends with many anthers. Six to many carpels are fused to a constant upper six-to 25 - chambered ovary. The ovary chamber only an erect ovule is present. There are six to many thin branches stylus available, each ending in a thread-like scar.

Fruit and seeds

The flattened spherical gap fruit with a swollen, conical or disk-shaped pen base is divided into six to many (25 ) part of fruit. The partial fruits are smooth or sculptured, sometimes partially membranous, usually beaked, often covered with one or two bristles, often tiny, fluffy with stellate hairs. At maturity the part of fruits usually remain closed. In every part of the fruit is an erect seed. The nierenfömigen seeds are smooth or transversely ribbed and free from the wall of the gap fruit.

Dissemination

The Lavatera species occur mainly in the Mediterranean. Some species also exists in the United Kingdom, the Canary Islands, in the highlands of Abyssinia, in Central Asia and Kashmir, as well as in eastern Siberia. There is also a kind in Australia ( Lavatera plebeia ) and five species in California ( Lavatera assurgentiflora, Lavatera insularis, lindsayi Lavatera, Lavatera Lavatera venosa and occidentalis ).

System

The first publication of the genus name Lavatera was in 1753 by Linnaeus in Species Plantarum, 2, p 690 The genus name honors Lavatera Johann Heinrich Lavater, a Swiss physician and naturalist of the 17th century and his brother also. As lectotype was established in 1929 by Hitchcock & Green the Lavatera kind trimestris L..

The genus belongs to the subtribe Lavatera Malvinae from the tribe Malveae in the subfamily Malvoideae within the family Malvaceae.

There are about 25 species of Lavatera:

• Lavatera abyssinica Hutch & EADeane: It thrives in the Ethiopian highlands.
• Lavatera acerifolia Cav. It occurs only in the Canary Islands.
• Tree -shaped Tree Mallow ( Lavatera arborea L.): It grows in the Mediterranean region as well as in Western Europe and in North Africa.
• Lavatera assurgentiflora Kellogg: It thrives only on the Channel Islands of California.
• Lavatera bryoniifolia Mill: It occurs mainly in the eastern Mediterranean
• Lavatera cachemiriana Cambess. It is widespread in India, Kashmir, Pakistan, Nepal, Kyrgyzstan, Russia, Tajikistan and China only in the northwestern Xinjiang.
• Lavatera cretica L.: This practice is widespread.
• Lavatera insularis S.Watson: You just comes down to the Islas los Coronados west front of Lower California.
• Lavatera lindsayi Moran: It comes only on Isla Guadalupe west front of Lower California.
• Lavatera maroccana Maire: It comes in Spain before in Cadiz, Sevilla, and probably also in Morocco.
• Lavatera mauritanica Durieu ( Syn: Lavatera davaei Cout. ): It comes with two subspecies in the southern and central eastern Portugal and Spain ( subsp. davaei ) and northwestern Africa ( subsp. mauritanica ) ago.
• Lavatera maritima Gouan: The distribution area is located in the western Mediterranean, where she comes to Corsica and Sardinia, as well as Tunisia and Morocco to Spain before.
• Lavatera microphylla EGBaker: This endemic species occurs only in the area of ​​Sherat River in Rabat in Morrokko ago.
• Lavatera oblongifolia Boiss. It occurs only in the provinces of Almeria and Granada in southern Spain.
• Lavatera occidentalis S.Watson: It comes only on islands west front of Lower California.
• Lavatera olbia L.: It occurs in southern Europe and North Africa
• Purple Strauchmalve ( Lavatera phoenicea Vent. ): It occurs only in the Canary Islands.
• Lavatera plebeia Sims: It is the only Australia-based Art
• Lavatera punctata All:. It is widespread and comes from Europe to central Asia before
• Lavatera stenopetala Coss. & Durieu: It comes only in Algeria before on clay soils.
• Thuringian Tree Mallow ( Lavatera thuringiaca L.): It is widely used by two species in Europe and Asia
• Lavatera triloba L.: It is widespread in the western Mediterranean.
• Mallow ( Lavatera trimestris L.): It is widespread in the Mediterranean area. As an ornamental plant it is used worldwide and is sometimes referred to as " garden refugee " observed.
• Lavatera venosa S.Watson: You just comes down to the San Benito Islands and west of the area of Vizcaino ago in Lower California.
• Lavatera Vidali Pau is a rare and endangered species from the western Rif Mountains in northern Morocco.

There are also some hybrids: Lavatera × clementii Cheek = Lavatera Lavatera × thuringiaca olbia

Swell

• Ya Tang, Michael G. Gilbert & Laurence J. Dorr: Malvaceae in the Flora of China, Volume 12, 2007, p 267: Lavatera - Online. (Section Description, systematics and distribution )
• Sultanul Abedin: Malvaceae in the Flora of Pakistan: Lavatera - Online. (Section Description, systematics and distribution )
• Lavatera in the Malvaceae site. (Section Description, systematics and distribution )
• Werner Greuter, H. M. Burdet, G. Long: Med - Checklist. Volume 4 Dicotyledones ( Lauraceae Rhamnaceae ). Page 235-237. Conservatoire et Jardin botaniques de la Ville de Genève. In 1989. ISBN 2-8277-0154-5