Abstract: The present paper contains descriptions of 63 new species of the genus Arachniodes Bl. since the publication of my mono-graph (Sinensis 5:1-91. 1934) under the generic name Rumohra Raddi. Mary D. Tindale (Contr. New South Wales Nat.Herb. No. 2. 1961) reinstated the long-forgotten name Ara-chniodes Bl. and subsequently followed by Japanese bota-nists and the present writer. Up to date there are altogether 110 species of the genus Arachniodes Bl. known in China.This figure convincingly indicates that China is the world centre of development of the genus, which had previously been confounded with Polystichum and Dryopteris by various authors. In China the genus is mainly confined in distribution to the provinces south of the Yangtze River. eastwardly to Japan and southwestwardly to Indo-China and the Himalayas.