Ball of herbs

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Ball of herbs
Annual ball (Scleranthus annuus)

Annual ball ( Scleranthus annuus )

Systematics
Eudicotyledons
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Carnation family (Caryophyllaceae)
Subfamily : Alsinoideae
Genre : Ball of herbs
Scientific name
Scleranthus
L.

The tangled herbs or tangles ( Scleranthus ) are a genus of plants in the carnation family (Caryophyllaceae). Regarding the derivation of the German trivial name , it can be said that in German colloquial language a "ball" is a small (up to the size of a fist) bale of wound threads. The twelve or so species are widespread in Eurasia , North Africa and Australasia .

description

Illustration of Annual Skein ( Scleranthus annuus )

Vegetative characteristics

The Scleranthus species and subspecies grow as annual, biennial and perennial herbaceous plants or dwarf shrubs . The tap roots are thin. The stem -round stems are erect to prostrate and branched.

The constantly against arranged on the stem leaves are sessile and fused at their base pairs. The simple leaf blades are narrow, subulate to linear, not succulent, single-veined with a pointed or blunt upper end. Stipules are missing.

Generative characteristics

In terminal or lateral, zymous inflorescences , many flowers are loosely to close together. The opposite, foliage-like bracts are fused in pairs. There is at most a short flower stalk.

The hermaphroditic flowers are radial symmetry and five-fold with a double flower envelope . The flower cup (hypanthium) is jug-shaped and continues abruptly at its base. The five free, green to greenish, herbaceous sepals are 1.5 to 4 millimeters in length, lanceolate to subphrate and have a whitish, dry-skinned edge and a pointed to blunt upper end. Petals are missing. The two to ten free stamens are inserted on the edge of the flower cup. All of the stamens can be fertile or five to eight are converted to staminodes . A nectar-producing disc is present at the base of the stamens. Two carpels are a half under constant ovary grown, so sepals and stamens are perigynous. The two free styluses in each one capped, papillary scars.

The solitary fruit is tubularly enclosed by the slightly to heavily furrowed flower cup, which is crowned by the durable sepals and together forms the egg-shaped "Utricle", which remains closed when ripe and thus represents the diaspore . The seeds are yellow and spherical.

The basic chromosome number is x = usually 11, rarely 12.

Systematics and distribution

The genus Scleranthus was first published in 1753 by Carl von Linné in Species Plantarum , 1, p. 406; The wrong spelling "Schleranthus" was used in the heading. The botanical generic name is derived from the ancient Greek words scléranthe : σκληρός sklerós for "hard" and ἄνθος ánthos for "blossom" or "flower" and refers to the inflorescences. Type species is Scleranthus annuus L. A synonym for Scleranthus L. is Mniarum J.R. Forst . & G.Forst.

The genus Scleranthus belongs to the tribe Sclerantheae in the subfamily Alsinoideae within the family of the Caryophyllaceae .

The genus Scleranthus includes (ten to) about twelve (to 17) species. Around three species, the annual ball ( Scleranthus annuus ), the perennial ball ( Scleranthus perennis ) and the drift ball ( Scleranthus polycarpos ), each with a few subspecies, are native to the temperate areas of Europe and the Mediterranean. Of the others, about eight species are native to Australasia . Three to four species are naturally found in Australia, plus two neophytes. Some species are in the world in many areas, for example in North America , neophytes .

Perennial ball ( Scleranthus perennis )

There are 10 to 17 species of Scleranthus :

Some nature hybrids are also described (selection):

  • Scleranthus × intermedius putty. ( Scleranthus annuus × Scleranthus perennis ): In Europe these hybrids are formed again and again, they have ten reduced, sterile stamens.
  • Scleranthus × podperae Smejkal ( Scleranthus perennis × Scleranthus polycarpos )
  • Scleranthus perennis × Scleranthus uncinatus

swell

  • John W. Thieret, Richard K. Rabeler: Scleranthus - text same online as printed work , In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico , Volume 5 - Magnoliophyta: Caryophyllidae, part 2. Oxford University Press, New York and Oxford, 2005, ISBN 0-19-522211-3 . (Sections Description, Distribution and Systematics)
  • RD Smissen, Phil J. Garnock-Jones: Relationships, classification and evolution of Scleranthus (Caryophyllaceae) as inferred from analysis of morphological characters. , In: Botanical Journal of the Linnean Society , Volume 140, 2002, pp. 15-29.
  • RD Smissen, Phil J. Garnock-Jones, GK Chambers: Phylogenetic analysis of ITS sequences suggests a Pliocene origin for the bipolar distribution of Scleranthus (Caryophyllaceae). In: Australian Systematic Botany , 16, 2003, pp. 301–315: PDF (sections description, distribution and systematics)
  • A. Doust: Entry on New South Wales Flora Online . (Sections Description, Distribution and Systematics)

Individual evidence

  1. RD Smissen, Phil J. Garnock-Jones, GK Chambers: Phylogenetic analysis of ITS sequences suggests a Pliocene origin for the bipolar distribution of Scleranthus (Caryophyllaceae) , In: Australian Systematic Botany , 16, 2003, pp. 301-315: PDF .
  2. Entry at biodiversitylibrary.org .
  3. ^ Scleranthus at Tropicos.org. Missouri Botanical Garden, St. Louis
  4. ^ Scleranthus in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  5. a b c d e f g h i j k Karol Marhold, 2011: Caryophyllaceae. Scleranthus , In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity .
  6. a b c John W. Thieret & Richard K. Rabeler: Scleranthus - the same text online as the printed work , In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico , Volume 5 - Magnoliophyta: Caryophyllidae, part 2. Oxford University Press, New York and Oxford, 2005. ISBN 0-19-522211-3
  7. a b c d e A. Doust: Entry in New South Wales Flora Online .

Web links

Commons : scleranthus ( Scleranthus )  - collection of pictures, videos and audio files