Basionym: Clavaria capitata Holmsk., Beata ruris otia fungis danicis 1: 38, t. 15 (1790) [MB#491143] Obligate synonyms: - Cordyceps capitata (Holmsk.) Fr., Observationes mycologicae 2: 317 (1818) [MB#191258] - Torrubia capitata (Holmsk.) Tul. & C. Tul., Selecta Fungorum Carpologia: Nectriei- Phacidiei- Pezizei 3: 22 (1865) [MB#465463] - Elaphocordyceps capitata (Holmsk.) G.H. Sung, J.M. Sung & Spatafora, Stud. Mycol. 57: 37 (2007) [MB#504192] Taxonomic synonyms: - Cordyceps canadensis Ellis & Everh., Bulletin of the Torrey Botanical Club 25: 501 (1898) [MB#191015] - Cordyceps capitata var. canadensis (Ellis & Everh.) Lloyd, Mycological Writings 5 (44): 609 (1916) [MB#504363] - Cordyceps nigriceps Peck, Bulletin of the Torrey Botanical Club 27: 21 (1900) [MB#171027] - Helvella agariciformis Bolton, An History of Fungusses, Growing about Halifax 3: 130 (1789) [MB#247562] - Sphaeria agariciformis Bolton, An History of Fungusses, Growing about Halifax 3: 130 (1789) [MB#495075] - Cordyceps agariciformis (Bolton) Seaver, North American Flora 3: 53 (1910) [MB#119796] - Sphaeria capitata var. agariciformis (Bolton) Pers., Synopsis methodica fungorum: 3 (1801) [MB#498789] - Xylaria agariciformis (Bolton) Gray, A natural arrangement of British plants 1: 511 (1821) [MB#562336]