Ornithocarpa
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Ornithocarpa is a small genus of plants in the cruciferous family (Brassicaceae). The only two species are found in Mexico .
description
The two ornithocarpa species grow as herbaceous plants and reach heights of 60 to 90 centimeters. They have simple stems . The alternately arranged leaves have a pinnate leaf blade.
The hermaphrodite flower is fourfold. The four narrow, elongated, blunt and purple sepals form a long, cylindrical calyx when budded and are spread out during flowering . The four elongated, white petals have an edge that is fringed in the upper section and serrated downwards from slashed to wide-toothed. The stamens are fädlich extended and the anthers elongated linear design. The two-chamber ovary flattens out to a parallel, short stem-like base. There are two ovules in each ovary chamber ; they are attached approximately in the middle of the upper and lower edge of the ovary. The stiff, fädliche and bespitzte head stylus is substantially longer than the ovary and ends in a tiny scar .
The obliquely egg-shaped, superficially crusty pods or pods are slightly rounded at the lower corners and strongly rounded at the upper corners. They have no wings, but each have a long, horn-like and persistent appendix. From a total of four ovules merely a developed seed to maturity. The cotyledons ( cotyledons ) wide, the embryo has lateral roots .
The basic chromosome number is given as x = 12.
Systematics
The genus Ornithocarpa was in 1905 Contributions from the United States National Herbarium of Joseph Nelson Rose erected and 2006 by Ihsan Ali Al-Shehbaz & al in the tribe asked Cardamineae within the family of the cross bloom plants (Brassicaceae).
The genus Ornithocarpa contains only two species:
- Ornithocarpa fimbriata Rose
- Ornithocarpa torulosa Rollins
swell
literature
- JN Rose: Studies of Mexican and Central American Plants - No. 4 . Brassicaceae. A new genus, ornithocarpa . In: Smithsonian Institution United States National Museum (Ed.): Contributions from the United States National Herbarium . tape VIII , no. 4 . United States Government Printing Office , Washington 1905, p. 292 to 293 (English, online [accessed on March 24, 2011] digitized by document scanning at the Biodiversity Heritage Library).
Individual evidence
- ↑ MAKoch & Ihsan A. Al-Shehbaz: Molecular Systematics and Evolution of "wild" crucifers (Brassicaceae or Cruciferae) . In: Biology and Breeding of Crucifers . Taylor and Francis Group DRAFT version Pp. 1-19, 2008, p. 7 (English, online PDF 290.84 kB [accessed on March 24, 2011] Ornithocarpa - number of species). Online ( Memento of the original from March 21, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Peter H. Raven: The Bases of Angiosperm Phylogeny: Cytology . In: Annals of the Missouri Botanical Garden . tape 62 , no. 4 . Missouri Botanical Garden Press, St. Louis 1975, IV-8, pp. 736 (English, online [accessed on March 24, 2011] Ornithocarpa - basic chromosome number digitized by document scan at Biodiversity Heritage Library).
- ^ Ihsan A. Al-Shehbaz: Generic Limits of Dryopetalon, Rollinsia, Sibara, and Thelypodiopsis (Brassicaceae), and a Synopsis of Dryopetalon . In: Missouri Botanical Garden (ed.): NOVON - A Journal of Botanical Nomenclature . tape 17 , no. 4 , 2007, ISSN 1055-3177 , p. 397 (English, online [accessed March 24, 2011] marginal note on ornithocarpa - digitized by document scanning at Biodiversity Heritage Library).
- ↑ Ornithocarpa torulosa . In: Tropicos. Missouri Botanical Garden, accessed March 20, 2011 .
