Klaprothia

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Klaprothia
Systematics
Nuclear eudicotyledons
Asterids
Order : Dogwood-like (Cornales)
Family : Nettle family (Loasaceae)
Subfamily : Loasoideae
Genre : Klaprothia
Scientific name
Klaprothia
Kunth

Klaprothia is a genus of plants withinthe nettle family (Loasaceae). It contains only two species thatare widespreadin the Neotropic and are considered invasive plants in many areas of the world.

description

Vegetative characteristics

They are upright, annual or herbaceous plants . The oppositely arranged leaves are simple with a serrated leaf edge.

Generative characteristics

The inflorescences are terminal and either thyrsenic or dichasia , in front of each of the upright single flowers stand two tiny prophylls .

The hermaphrodite flowers are radial symmetry and four-fold with a double flower envelope . There are four sepals . The four free petals are white. The yellow Staminodien are in groups of two to six pieces each other, and are either straight or grow the three outer to four are united at the approach each other closely papillous hairy and irregular shape of a cone at the top and lobed. Four carpels have become an under standing, single-chamber ovary grown. The stylus is thread-shaped.

The small capsule fruit is egg-shaped and straight to slightly twisted, it opens with four flaps at the top of the fruit or along elongated slits and contains 2 to 200 seeds. The seeds are weakly ovoid.

The number of chromosomes is 2n = 24 or 48.

distribution

The genus Klaprothia is widespread from southern Mexico through Central America to Brazil and Bolivia and extends to the Galapagos Islands and the Caribbean Islands.

Systematics

The first description of Klaprothia was made in 1823 by Karl Sigismund Kunth in Friedrich Wilhelm Heinrich Alexander von Humboldt , Aimé Jacques Alexandre Bonpland , Carl Sigismund Kunth: Nova Genera et Species Plantarum (folio ed.) , 6, page 96. type species is Klaprothia mentzelioides Bonpl. & Kunth. Synonyms for Klaprothia Kunth are: Ancyrostemma Poepp. & Endl. , Sclerothrix C. Presl .

The genus Klaprothia belongs to the tribe Klaprothieae in the subfamily Loasoideae within the family Loasaceae . Until Poston & Nowicke 1990 "there were two monotypical genera Klaprothia and Sclerothrix in the tribe Klaprothieae . In 1990 Sclerothrix fasciculata was placed in the genus Klaprothia .

The genus Klaprothia contains only two species:

  • Klaprothia mentzelioides Kunth
  • Klaprothia fasciculata (C.Presl) Poston (Syn .: Ancyrostemma micranthum (Ruiz & Pav.ex G.Don) Poepp. & Endl. , Blumenbachia micrantha Ruiz & Pav.ex G.Don , Loasa micrantha Poepp. , Loasa micrantha Ruiz & Pav. , Loasa micrantha Ruiz & Pav. ex A.Lopez , Sclerothrix fasciculata C.Presl )

swell

literature

  • Maximilian Weigend: Loasaceae. In: Klaus Kubitzki (Ed.): The Families and Genera of Vascular Plants . Volume 6: Flowering Plants, Dicotyledons: Celastrales, Oxalidales, Rosales, Cornales, Ericales . Springer, Berlin / Heidelberg / New York 2004, ISBN 3-540-06512-1 , pp. 248 (English, limited preview in Google Book search).
  • Maximilian Weigend: Loasaceae - Familial and generic classification. Online , accessed August 1, 2008
  • Muriel S. Poston, Joan W. Nowicke: A reevaluation of Klaprothia and Sclerothrix (Loasaceae: Klaprothieae). In: Systematic Botany , Volume 15, Issue 4, 1990, p. 675. JSTOR 2419163

Individual evidence

  1. ↑ a b c d Klaprothia at Tropicos.org. In: 66 . Missouri Botanical Garden, St. Louis
  2. ↑ a b c d Klaprothia at Tropicos.org. In: Flora of Panama (WFO) . Missouri Botanical Garden, St. Louis
  3. ↑ a b Klaprothia at Tropicos.org. Missouri Botanical Garden, St. Louis. Retrieved September 24, 2017.
  4. ↑ a b Klaprothia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved September 24, 2017.
  5. ↑ Muriel S. Poston, Joan W. Nowicke: A reevaluation of Klaprothia and Sclerothrix (Loasaceae: Klaprothieae). In: Systematic Botany , Volume 15, Issue 4, 1990, p. 675. JSTOR 2419163

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