Name requested: Tichothecium perpusillumLichenologist 12 (1): 38. 35 (3): 221. Mycotaxon 56: 148.
Heterotypic synonym: Endococcus rugulosusLichenologist 12 (1): 38, 38, 38, 38, 38. 26 (4): 341, 342. 35 (3): 206, 221, 222, 222. Mycotaxon 81: 266, 278. 99: 201, 203. 100: 340. 104: 267, 279, 282, 284.