A specimen of Helichrysum arenarium from the 1673 herbarium. This species is represented by six specimens in this herbarium.

A specimen of Helichrysum arenarium from the 1673 herbarium. This species is represented by six specimens in this herbarium.

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Historic herbaria can provide a wealth of information on a diversity of topics, including the past occurrence of plants, their abundance, names and uses. However, 16th and 17th century herbaria are rare and very fragile, and can best be studied after digitization. The collection of Naturalis Biodiversity Center in Leiden, the Netherlands, contains...

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... Well-represented families are Asteraceae (29 specimens, 13 spp.) and Apiaceae (9 specimens, 5 spp.); 11 species were found in both herbaria. The same number of species were represented more than once within one of the herbaria (6 spp. in the 1659 herbarium, 5 spp. in the 1673), with six specimens of Helichrysum arenarium (L.) Moench (Asteraceae) (Fig. 2) and four of Antennaria dioica (L.) Gaertn. (Asteraceae). Breyne may have strived to document the diversity within these species, as his descriptions point at differences in, e.g., flower colour and leaf shape. Of A. dioica both staminate and pistillate plants are represented. It is not clear if this was by intention or coincidental, as ...

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