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 4 species.[6]
- Graderia fruticosa Balf.f. is endemic to Socotra.
- Graderia linearifolia Codd
- Graderia scabra Benth.
- Graderia subintegra Mast.
References
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