Distribution area of the two floral morphs of Nigella damascena L. (Ranunculaceae): a diachronic study using herbarium specimens collected in France

Figures & data

Figure 1. Herbarium material providing data about the floral morph and the collection date and locality. (A) Herbarium specimen of Nigella damascena (barcode P02575070) presenting individuals from the [P] floral morph. (B) A focus on the most mature flower. The white arrows point at two of the petals. (C) A focus on the label showing the collection number, the determination provided by the collector, the collection locality and date, and the name of the collector. (D) A flower from the [T] morph, from the specimen P00195185. Digital images of both specimens can be downloaded using the following links: http://coldb.mnhn.fr/catalognumber/mnhn/p/p02575070 and http://coldb.mnhn.fr/catalognumber/mnhn/p/p00195185.

Figure 2. Distribution area of Nigella damascena in France over the last two centuries, broken up in 50-year periods. (A–D) Distribution area of the [P] morph. (E–H) Distribution area of the [T] morph.

Figure 3. Frequency of [P] and [T] morphs of Nigella damascena in a Museum time-series spanning two centuries. (A) Wild specimens. (B) Cultivated specimens.

Figure 4. Distribution maps of Nigella damascena (both morphs, wild and cultivated) based on national and regional databases. (A) Number of observations adapted from the SIFlore dataset. (B) Collection dates adapted from the SIFlore dataset. (C) Occurrence data adapted from the INPN dataset.