Published in Transactions of the British Mycological Society, in 1921, in volume 7, issue 1-2, pages 18-40

Published in Transactions of the British Mycological Society, in 1921, in volume 7, issue 1-2, pages 55-58

Published in Transactions of the British Mycological Society, in 1921, in volume 7, issue 1-2, pages 89-132