Abelia floribunda

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Abelia floribunda
Vesalea floribunda (7850722958) .jpg

Abelia floribunda

Systematics
Euasterids II
Order : Cardigans (Dipsacales)
Family : Honeysuckle Family (Caprifoliaceae)
Subfamily : Linnaeoideae
Genre : Abelia ( Abelia )
Type : Abelia floribunda
Scientific name
Abelia floribunda
( M.Martens & Galeotti ) Decne.

The Abelia floribunda is a species within the family of Honeysuckle (Caprifoliaceae). Their distribution area is in southern Mexico.

description

Appearance and leaf

Abelia floribunda grows as a semi-evergreen to evergreen, independently upright, richly branched shrub that reaches heights of 0.5 to 1.5 meters. The bark of the curved branches is reddish-brown and covered with 0.010 to 0.028 millimeters long, stiff, simple hair and glandular hairs ( indument ).

The constantly against arranged on the branches leaves are divided into petiole and leaf blade. The stiff, hairy petiole is relatively short with a length of 0.5 to 3 millimeters. The herbaceous, simple leaf blade is usually 1.4 to 2 (0.9 to 2.5) centimeters long and 0.5 to 1.5 centimeters wide, oblong to ovate with a blunt to rounded or wedge-shaped blade base and pointed to rounded upper end. The sawn leaf margin usually has about 56 glandular teeth. The leaf surface is glabrous or hairy on the edge. There is pinnate veins . The stipules are only 0.1 to 0.2 millimeters long.

Inflorescence and flower

At the ends of the branches, the pendulous flowers stand in pairs or sometimes individually in the leaf axils over an inflorescence stem that is only 1.0 to 2.5 millimeters long and two bracts . The bracts are usually 0.5 to 2 or up to 3, rarely up to 7 millimeters long; in Abelia floribunda var. floribunda a maximum of 2 millimeters and in Abelia floribunda var. foliacea at least 2 millimeters. The flower stalk is 1 to 3 millimeters long.

The hermaphrodite, fragrant flowers are weakly zygomorphic and five-fold with a double flower envelope . The five only very briefly fused, durable sepals are elliptical with a length of 6 to 11 millimeters and a width of 1.5 to 3 millimeters with a rounded upper end. They are greenish-yellow to purple in color and densely covered with short glandular hairs and simple hairs. The color of the petals (in the wild form) is carmine red. The five 22 to 40 millimeter long petals are fused tubular. The narrow basal area of ​​the corolla tube has a length of 3 to 6 millimeters and a diameter of 3 to 4 millimeters, above which the corolla tube spreads over a length of 3 to 3.5, rarely up to 4.5 centimeters slowly to the crown throat, which has a diameter of 0.6 to 1.2 centimeters. The five corolla lobes are 4 to 7 millimeters long. The corolla has stiff hairs and glandular hairs on the outside and the lower area of ​​the corolla tube is hairy on the inside. In the corolla tube there are three ligaments with nectar glands. Of the four fertile stamens , the lower two are slightly longer than the upper. With the stamens inserted in the lower area of ​​the corolla tube, the free area is much longer than the fused area. The white stamens are hairy in the lower part and glabrous in the upper part. Three carpels have become an under-earth, dreikammerigen ovary grown; two ovary chambers are sterile. The 3.5 to 4.6 millimeter long stylus ends in a slightly heady scar.

Fruit and seeds

Even while the fruit is ripe, the long-lasting, then purple-colored calyx crowns the fruit. The capsule fruit is 3.6 to 5.2 millimeters long and hairy with stiff glands. The capsule fruit does not open when ripe and contains only one seed. The seeds have lengths of 2.2 to 3.0 millimeters and diameters of 1.8 to 2.4 millimeters.

Chromosome set

The basic chromosome number is x = 8. There is diploidy , i.e. 2n = 16.

Occurrence

The natural range of Abelia floribunda are the southern Mexican states mainly Oaxaca and Chiapas , but also in Puebla and Veracruz . It thrives in the mountains mostly in pine-oak forests.

Systematics

It was first described in 1844 under the name ( Basionym ) Vesalea floribunda by Martin Martens and Henri Guillaume Galeotti in Bulletin de l'Academie Royale des Sciences et Belles-lettres de Bruxelles , Volume 11, Number 1, p. 242. The new combination to Abelia floribunda (M.Martens & Galeotti) Decne. was published in 1846 by Joseph Decaisne in the botanical journal Flore des serres et des jardins de l'Europe , published by Louis van Houtte , Volume 2, Plate IV. The generic name Abelia honors the British doctor, botanist and naturalist Clarke Abel . The specific epithet floribunda means florid. More synonyms for Abelia floribunda (M.Martens & Galeotti) Decne. are: Linnaea floribunda (M.Martens & Galeotti) A.Braun & Vatke , Vesalea hirsuta M.Martens & Galeotti , Abelia speciosa Decne., Abelia hirsuta (M.Martens & Galeotti) Walp.

The scope of the genus Abelia is controversial; while, for example, in the Flora of China 2011 only five East Asian species belong to it, Villarreal et al. 2013 the five Mexican species re-classified here. The species Abelia floribunda belongs to the section Vesalea (M.Martens & Galeotti) Fukuoka from the genus Abelia .

There are two varieties of the species Abelia floribunda :

  • Abelia floribunda (M. Martens & Galeotti) Decne. var. floribunda
  • Abelia floribunda var. Foliacea Villarreal : It was first described in 2013 and is only known from the type location. It thrives in the cloud forest at an altitude of 2100 meters in the western part of the Sierra Madre de Chiapas in the border area with Guatemala.

use

Some varieties of Abelia floribunda are used as ornamental plants in parks and gardens. It is sensitive to frost and can only be cultivated in protected locations in Central Europe.

swell

  • José Á. Villarreal-Quintanilla, José Luis Villaseñor-Ríos, Eduardo Estrada-Castillón: Sistemática del género Abelia (Caprifoliaceae) en México with an English-language summary: Systematics of the genus Abelia (Caprifoliaceae) in Mexico , In: Acta Botánica , 2013, Mexicana , Volume 102 P. 99–128: online full-text PDF. (Sections Description, Systematics and Distribution)
  • José Á. Villarreal-Quintanilla, AE Estrada-Castillón, José L. Villaseñor-Ríos, M. de la Rosa-Ibarra: Morfología de las especies de Abelia Sección Vesalea (Caprifoliaceae) with an English-language summary: Morphology of the species of Abelia Section Vesalea (Caprifoliaceae) , Volume 107, 2014, pp. 67–97: online full-text PDF. (Sections Description, Systematics and Distribution)

Individual evidence

  1. a b c d e f g h i j k l m n o José Á. Villarreal-Quintanilla, José Luis Villaseñor-Ríos, Eduardo Estrada-Castillón: Sistemática del género Abelia (Caprifoliaceae) en México with an English-language summary Systematics of the genus Abelia (Caprifoliaceae) in Mexico , In: Acta Botánica Mexicana , Volume 102, 2013 99–128: online full-text PDF.
  2. a b c d José Á. Villarreal-Quintanilla, AE Estrada-Castillón, José L. Villaseñor-Ríos, M. de la Rosa-Ibarra: Morfología de las especies de Abelia Sección Vesalea (Caprifoliaceae) with an English-language summary: Morphology of the species of Abelia Section Vesalea (Caprifoliaceae) , Volume 107, 2014, pp. 67–97: online full-text PDF.
  3. Abelia floribunda in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 16, 2014.
  4. M.Martens & Galeotti 1844 scanned in at biodiversitylibrary.org .
  5. ^ Joseph Decaisne scanned in at biodiversitylibrary.org in 1846 .
  6. Abelia floribunda at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed on May 16, 2014.
  7. Gordon Cheers (Ed.): Botanica. The ABC of plants. 10,000 species in text and images . Könemann Verlagsgesellschaft, 2003, ISBN 3-8331-1600-5 (therein page 36).

Web links

Commons : Vesalea floribunda  - Collection of images, videos and audio files