laevigata by the German botanist in 1960. ===Systematics=== The first full monograph regarding this genus was written by Lindley in 1821.
laevigata by the German botanist in 1960. ===Systematics=== The first full monograph regarding this genus was written by Lindley in 1821.
He included two sections, a section Isoplexis including two species, and the main section Digitalis with three subsections, including 2Y species, a number of which are now seen as synonyms or hybrids. In the last full monograph of the genus in 1965, Werner classified the 19 recognised species in five sections (four species from Macaronesia were separated in the genus Isoplexis at the time): In the section Digitalis, along with the type species D.
parviflora. In their 2000 book about Digitalis, Luckner and Wichtl continued to uphold Werner's classification of the 19 species, but molecular studies into the phylogeny of the genus published in 2004 found that although four of Werner's sections were supported by the genetics, the section Tubiflorae was polyphyletic, and that the species D.
The genus was traditionally placed in the figwort family, Scrophulariaceae, but phylogenetic research led taxonomists to move it to the Veronicaceae in 2001.
parviflora. In their 2000 book about Digitalis, Luckner and Wichtl continued to uphold Werner's classification of the 19 species, but molecular studies into the phylogeny of the genus published in 2004 found that although four of Werner's sections were supported by the genetics, the section Tubiflorae was polyphyletic, and that the species D.
subalpina were not tested in this study, but the 2004 study found these two species situated within the section Globiflorae. ==Ecology== Larvae of the foxglove pug, a moth, consume the flowers of the common foxglove for food.
A 2016 molecular phylogenetic study into the relationships of the Turkish species in the section Globiflorae aimed to reconcile this discrepancy, finding that the classification as proposed by Davis was largely correct: Globiflorae contained as distinct species D.
As of 2017, Plants of the World Online recognises the following 27 species (and a number of hybrids): Digitalis atlantica Pomel Digitalis canariensis L. Digitalis cariensis Boiss.
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