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Seidenfaden collection components
Spirit samples
Seidenfaden's more than 20 expeditions in Thailand resulted in one of the world's largest living collections of orchids. Today, the extant parts of the living collection are accommodated in the Botanical Garden, Natural History Museum of Denmark. Largely through sampling his living collection, Seidenfaden gradually built a comprehensive spirit collection of orchids from Thailand, and it was regularly supplemented with material that his many contacts sent him from other countries in tropical Asia. When Seidenfaden left his spirit collection for the Natural History Museum of Denmark, it contained just about 11,000 samples.
The Seidenfaden Database of Orchids can be used for constructing lists of spirit samples of particular taxa or from particular geographic regions, and it can be used for displaying collection data for individual samples. As a general rule, the fragile spirit-preserved material is not sent abroad on loan, but researchers and graduate students etc. are welcome to study the material during visits to herbarium C. For such purposes, please contact: Henrik Æ. Pedersen or: The keeper; Botanical Garden & Museum; Natural History Museum of Denmark; University of Copenhagen; Gothersgade 130; DK-1123 Copenhagen K; Denmark.
Line drawings
Much of Seidenfaden's spirit-preserved orchid material was carefully sketched by Seidenfaden himself, and he thoroughly utilized his observations from this activity for delimiting taxa and preparing copious identification keys. Some of Seidenfaden's sketches were later inked in by professional artists (usually Kai Olsen, Poul Juul or Katja Anker), and the resulting line drawings were published in his revisions. All of the original line drawings are now kept at the Natural History Museum of Copenhagen.
The Seidenfaden Database of Orchids can be used for locating existing line drawings of particular species. All of the line drawings have been scanned in high resolution, and a general copyright agreement has been entered with Olsen, Juul and Anker. This agreement makes the drawings available for scientific publications on favourable terms. If you are interested to utilize this resource for a scientific publication, please contact: Henrik Æ. Pedersen or: The keeper; Botanical Garden & Museum; Natural History Museum of Denmark; University of Copenhagen; Gothersgade 130; DK-1123 Copenhagen K; Denmark.
We hope that, in the not too distant future, we will be in a postion to make the line drawings viewable online through The Seidenfaden Database of Orchids.
Colour slides
Over the years, Seidenfaden established a large collection of colour slides of tropical Asian orchids, and Seidenfaden left all of these for the Natural History Museum of Denmark. Several photographers have contributed to this fine collection, but Gösta Kjellsson must be mentioned particularly, as he is responsible for a very high number of close-up photographs of outstanding quality.
The Seidenfaden Database of Orchids can be used for locating existing colour slides of particular species. All of the colour slides have been scanned in high resolution, and a general copyright agreement has been signed that makes Gösta Kjellsson's colour slides available for scientific publications on favourable terms. If you are interested to utilize this resource for a scientific publication, please contact: Henrik Æ. Pedersen or: The keeper; Botanical Garden & Museum; Natural History Museum of Denmark; University of Copenhagen; Gothersgade 130; DK-1123 Copenhagen K; Denmark.
We hope that, in the not too distant future, we will be in a postion to make the colour slides viewable online through The Seidenfaden Database of Orchids.

Søg i Seidenfaden Orkide database
More about the Seidenfaden Database of Orchids
Obituaries and other papers on Seidenfaden and his collections
Floristic regions of Thailand