Malayan ferns and fern allies : handbook to the determination of the ferns and fern allies of the Malayan Islands (incl. those of the Malay Peninsula, the Philippines and New Guinea). Supplement 1 / by C.R.W.K. van Alderwerelt van Rosenburgh.
- Alderwerelt van Rosenburgh, C. R. W. K. van 1863-1936.
Athyrium niponicum (Mett.) Hance var. pictum (Maxwell) Fraser-Jenk. Woodsiaceae. Japanese Painted fern. Hardy fern. Distribution: Japan. Young fronds are boiled and eaten in Japan. However after the discovery of thaiminases in certain ferns Pteridum aquilum (bracken), Marsilea drummondii and Cheilanthes sieberi cautions are given regarding the risk of thiaminase in all ferns. It can be mostly removed by boiling, but otherwise causes vitamin B1 (thiamine) deficiency and beriberi in a matter of weeks. Eating Bracken fern also causes cancer, as do the spores, but I could find no report of other ferns being toxic. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
- Dr Henry Oakeley
- Digital Images
The British ferns, or, Coloured figures and descriptions, with the needful analyses of the fructification and venation, of the ferns of Great Britain and Ireland, systematically arranged / by Sir William Jackson Hooker ; the drawings by Walter Fitch.
- Hooker, William Jackson, Sir, 1785-1865.