BURLINGHAMIAE Singer, Bull. Soc. Mycol. France 54: 134. 1938.
CALIFORNIENSIS Burlingham, Mycologia 28: 262, figs. 5a, 8. 1936.
CASCADENSIS Shaffer, Mycologia 56: 212, figs. 5, 8, 11. 1964.
CEROLENS Shaffer, Mycologia 64: 1036, figs. 2933. 1972.
CHLORINOSMA Burlingham, Mycologia 16: 22, pl. 5, fig. 9. 1924.
CHRYSODACRYOIDES Singer, Mycologia 34: 77. 1942.
CINERASCENS Beardslee, J. Elisha Mitchell Sci. Soc. 33: 164, pl. 78, 111. 1918.
CINNAMONEA Banning, Bot. Gaz. 6: 166. 1881.
CITRINA Gillet form SEPARATA Singer, Bull. Soc. Mycol. France. 54: 136. 1938.
CITRINOCHLORA Singer, Bull. Soc. Mycol. France 54: 137. 1938.
CLITOCYBIFORMIS Murrill, Bull. Torrey Bot. Club. 67: 231. 1940.
COLUMBIANA Singer, Mycopathol. Mycol. App1. 20: 248. 1963.
COMPACTA Frost in Peck, Annual Rep. New York State Mus. 32: 32. 1879.
CONSOBRINA var. PECTINATOIDES (Peck) Singer, Hedwidgia 66: 205. 1926.
CORALLINA Burlingham, N. Am. Fl. 9: 213. 1915.
CORINTHIIRUBRA Burlingham, N. Am. Fl. 9: 220. 1915.
COSTARICENSIS Singer in Singer et al. Beih. Nova Hedwidgia 77: 269, fig. 24. 1983.
CRASSOTUNICATA Singer, Bu11. Soc. Mycol. France 54: 132. 1938.
CRATAEGORUM Murrill, Quart. J. Florida Acad. Sci. 8: 181. 1945.
CREMEA (Murrill) Singer, Lilloa 22: 711. 1949.
CREMEIROSA Murrill, Lloydia 8: 265. 1945.
CREMEIRUBRA Murrill, Lloydia 8: 265. 1945.
CREMEOLILACINA Pegler in Pegler and Singer, aycotaxon 12: 94. 1980.
CREMEOLILACINA Pegler in Pegler and Singer var. COCCOLOBICOLA Singer in Singer et al., Beih. Nova Hedwidgia 77: 264, fig. 23. 1983.
CREMORICOLOR Earle, Bull. New York Bot. Garden 2: 341. 1902.
CRENULATA Burlingham, Mycologia 5: 310. 1913.
CRUSTOSA Peck, Annual Rep. New York State Mus. 39: 41. 1886.