Graderia
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Graderia[1] is a genus of plants in the family Orobanchaceae, which is native to Africa and Socotra.[2] It belongs to the tribe Buchnereae.[3] It is a hemiparasitic taxon.[4]
Etymology
Graderia is a taxonomic anagram derived from the name of the confamilial genus Gerardia. The latter name is a taxonomic patronym honoring the English botanist John Gerard.[5]
Description
Sometimes a suffrutex with stems growing from a woody rhizome. Leaves may be opposite or alternate.[2] The solitary flowers appear in the axils, and have a five-lobed calyx and corolla. The flower is tubular with four stamens, in pairs of unequal length.[2] Each stamen has two divergent, oblong and curved thecae. The two-locular ovary has numerous ovules, and produces numerous seeds in a fruit capsule.[2]
Systematics
The genus includes some four species.[6]
- Graderia fruticosa Balf.f. is endemic to Socotra.
- Graderia linearifolia Codd
- Graderia scabra Benth.
- Graderia subintegra Mast.
References
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- ^ Page Module:Citation/CS1/styles.css has no content.Gardeners Chronicle & New Horticulturist. Haymarket Publishing. 1893.
- ^ a b c d Page Module:Citation/CS1/styles.css has no content.Hyde, M.A.; et al. "7614.000 Graderia Benth". Flora of Zimbabwe. Retrieved 2 February 2018.
- ^ Page Module:Citation/CS1/styles.css has no content.McNeal, J. R.; Bennett, J. R.; Wolfe, A. D.; Mathews, S. (2013-05-01). "Phylogeny and origins of holoparasitism in Orobanchaceae". American Journal of Botany. 100 (5): 971–983. doi:10.3732/ajb.1200448. ISSN 0002-9122. PMID 23608647.
- ^ Page Module:Citation/CS1/styles.css has no content.Nickrent, Daniel L. (2020). "Parasitic angiosperms: How often and how many?". Taxon. 69 (1): 5–27. doi:10.1002/tax.12195. ISSN 1996-8175.
- ^ Page Module:Citation/CS1/styles.css has no content.Burkhardt, Lotte (2018-06-06). Verzeichnis eponymischer Pflanzennamen - Erweiterte Edition. Index of Eponymic Plant Names - Extended Edition. Index de Noms éponymiques des Plantes - Édition augmentée (in Deutsch). Botanic Garden and Botanical Museum Berlin, Freie Universität Berlin. p. G17. doi:10.3372/epolist2018. ISBN 978-3-946292-26-5. S2CID 187926901.
- ^ Page Module:Citation/CS1/styles.css has no content.Brown, Gary; Mies, Bruno (2012-05-22). Vegetation Ecology of Socotra. Springer Science & Business Media. ISBN 978-94-007-4141-6.
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