Asia-Tropical: Thailand (Thailand present); Vietnam (Vietnam present), N. Queensland present, N.W. India present, New Caledonia present, New Hebrides present, Pacific: Fiji (Fiji present); Samoa (Samoa present), southern China present
N.W. India to southern China, Thailand and Vietnam; throughout Malesia: N. Queensland, New Hebrides, New Caledonia, Fiji, Samoa.
Reports on the distribution of this species are often erroneous because it has been con- fused with Sphaerostephanos invisus and S. unitus which have a similar habit (see Holttum in Allertonia, 1977). Loyal found a plant in North India to be diploid; some specimens are possibly hybrids with C. subpubescens.
Copel., Fern Fl. Philip. 1960: 362
Morton - in Contr. U.S. Nat. Herb. 1974: 335
Backer & Posth., Varenfl. Java. 1939: 50
Holttum - in Allertonia. 1977: f. 9A.
Racib. - in Fl. Btzg. 1898: 125
Holttum - in Kew Bull. 1976: 320
Holttum - in Rev. Fl. Malaya. 1955: f. 146
v.A.v.R., Handb. 1908: 212
Bedd., Handb. 1883: 212