Flower bachia
| Flower bachia | ||||||||||||
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Blumenbachia hieronymi , blossom |
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| Scientific name | ||||||||||||
| Flower bachia | ||||||||||||
| Schrad. |
Blumenbachia is a genus of plants fromthe nettle family (Loasaceae). It contains twelve species that are native to South America. The generic name honors the German biologist Johann Friedrich Blumenbach (1752-1840).
description
They are upright or climbing annual or perennial herbaceous plants . The roots are fibrous, only rarely does a tuber or a thickened taproot develop from the primary root . The leaves are opposite, the leaf blades are broadly ovate, roughly lobed, sometimes bipinnate.
The inflorescences are terminal and thyrsenic with dichasic or monochasic branching or standing individually.
In front of the upright, numerous individual flowers, there are two frondose or bractose prophylls .
The petals are white. The outer staminodes are fused and form an elongated, yellowish scale sheet ( nectar scale ), on the outer side of which there are three long thread-like white, red and yellow appendages.
The ovary is subordinate, the placenta is simple.
The fruit is a subordinate, cylindrical to round capsule and always, i.e. monostrophic when viewed from above, rotated counterclockwise: twisted by around 1/3 of a turn in the traditional sense of screwing. The seeds are angular. The number of chromosomes is 2n = 24 or 26.
distribution
The species are found in Brazil, Uruguay, Paraguay, Chile and Argentina.
Systematics
Blumenbachia was first described in 1825 by Heinrich Adolph Schrader . The genus is classified in the subfamily Loasoideae , Tribe Loaseae and divided into three sections ( Angulatae , Blumenbachia and Gripidea ). The genus includes twelve species, including:
- Blumenbachia catharinensis Urb. & Gilg : It was first described from Brazil.
- Blumenbachia dissecta (Hook. & Arn.) Weigend & Grau : It was first described from Chile.
- Blumenbachia eichleri Urb. : It was first described from Brazil.
- Blumenbachia exalata Weigend : It was described in 2006 from southern Brazil.
- Hieronymus flower bachia ( Blumenbachia hieronymi Urb. )
- Beautifully drawn flower bachia ( Blumenbachia insignis Schrad. )
- Blumenbachia latifolia Cambess. : It was first described from Brazil.
- Blumenbachia prietea Gay : It was first described from Chile.
- Blumenbachia scabra (Miers) Urb. : It was first described from Brazil.
- Blumenbachia sylvestris Poepp. : It was first described from Chile.
proof
- 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: Familial and generic classification , online , accessed August 1, 2008
