concanensis de Candolle A. , 1859 , ------------------------- --- , 0 , Asia , India , --- , , , , B96 r027
conchifolia Dietrich var. rubrimacula Golding J. , 1973 , ------------------------- rhizomatous entire/subentire medium , Gireoudia , Americas , Costa Rica , --- , B91 ap098 , B00 d069 , , B80 r180
conchifolia var. conchifolia Dietrich , 1851 , ------------------------- rhizomatous entire/subentire small , Gireoudia , Americas , Costa Rica, Panama , 28 , , B87 d036 , B92 d108r066 , B78 r056
confertiflora Gardner , 1845 , is arborescens Raddi var. confertiflora de Candolle A. , 1861 ------------------------- --- , 0 , , --- , ~56 , , B74 d130 , , B70 d-Oct
confertiflora Gardner , 1845 , is arborescens var. confertiflora (gardner) de Candolle A. , 1861 ------------------------- shrub-like bare large , Pritzelia , Americas , Brazil , , , , ,
conipila hort. Irmscher , --- , is not a validly published name , --- ------------------------- --- , 0 , Asia , Malaysia, Borneo , --- , , B90 dp144 , ,
convallariodora de Candolle A. , 1895 , ------------------------- shrub-like bare mid , 0 , Americas , Venezuela, Mexico , --- , , B92 d034r066 , B71 d210 , B86 d048
crenulata Shott ex de Candolle A. , 1861 , is angularis var. angularis Raddi , 1820 ------------------------- cane-like , Pritzelia , Americas , Brazil , --- , , , ,
cuningiana de Candolle A. , 1864 , ------------------------- --- , Petermannia , Asia , Philippines
cuspidata de Candolle C. , 1896 , is multinervia Liebmann , 1853 ------------------------- thick-stemmed bare large , Gireoudia , Americas , America C., Costa Rica , , , , ,