Forest mushroom; Agaricus sylvaticus 16; and horse mushroom; A. arvensis 17. Chromolithograph after an illustration by M. C. Cooke from his own 鈥楤ritish Edible Fungi; how to distinguish and how to cook them;' London; Kegan Paul; 1891. Mordecai Cubitt Cooke (1825-1914) was a British botanist; mycologist and artist. He was curator a the India Musuem from 1860 to 1879; when he transferred along with the botanical collection to the Royal Botanic Gardens; Kew.