Graderia

Short description: Genus of flowering plants in the broomrape family Orobanchaceae

Graderia

G. subintegra
Scientific classification
Kingdom:  | Plantae
Clade:  | Tracheophytes
Clade:  | Angiosperms
Clade:  | Eudicots
Clade:  | Asterids
Order:  | Lamiales
Family:  | Orobanchaceae
Tribe:  | Buchnereae
Genus:  | Graderia
Benth.

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]

## Contents

* 1 Etymology
* 2 Description
* 3 Systematics
* 4 References

## 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

Divergent thecae in G. subintegra

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 4 species.[6]

* Graderia fruticosa Balf.f. is endemic to Socotra.
* Graderia linearifolia Codd
* Graderia scabra Benth.
* Graderia subintegra Mast.

## References

1. ↑ (in en) Gardeners Chronicle & New Horticulturist. Haymarket Publishing. 1893. https://books.google.com/books?id=J6cgAQAAMAAJ&q=Graderia+plant&pg=PA798.
2. ↑ 2.0 2.1 2.2 2.3 Hyde, M.A.. "7614.000 Graderia Benth.". http://www.zimbabweflora.co.zw/speciesdata/genus.php?genus_id=1293. Retrieved 2 February 2018.
3. ↑ McNeal, J. R.; Bennett, J. R.; Wolfe, A. D.; Mathews, S. (2013-05-01). "Phylogeny and origins of holoparasitism in Orobanchaceae" (in en). American Journal of Botany 100 (5): 971–983. doi:10.3732/ajb.1200448. ISSN 0002-9122. PMID 23608647.
4. ↑ Nickrent, Daniel L. (2020). "Parasitic angiosperms: How often and how many?" (in en). Taxon 69 (1): 5–27. doi:10.1002/tax.12195. ISSN 1996-8175.
5. ↑ Burkhardt, Lotte (2018-06-06) (in de). Verzeichnis eponymischer Pflanzennamen - Erweiterte Edition. Index of Eponymic Plant Names - Extended Edition. Index de Noms éponymiques des Plantes - Édition augmentée. Botanic Garden and Botanical Museum Berlin, Freie Universität Berlin. p. G17. doi:10.3372/epolist2018. ISBN 978-3-946292-26-5.
6. ↑ Brown, Gary; Mies, Bruno (2012-05-22) (in en). Vegetation Ecology of Socotra. Springer Science & Business Media. ISBN 978-94-007-4141-6. https://books.google.com/books?id=XOea3sMEkLcC&pg=PA58.

Wikidata ☰ Q1334826 entry

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Graderia. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Biology:Graderia&oldid=457864"