| Title | Ascomyceten |
| Abbreviation | Ascomyc. |
| Authors | H. Rehm |
| Publication Dates | Fasc. 1, 1-50, 1870; fasc. 2, 51-100, 1871; fasc. 3, 101-150, 1872; fasc. 4, 151-200, 1873; fasc. 5, 201-250, 1874; fasc. 6, 251-300, 1875; fasc. 7, 301-350, 1876; fasc. 8, 351-400, 1876; fasc. 9, 401-450, 1878; fasc. 10, 451-500, 1878; fasc. 11, 501-550, 1879; fasc. 12, 551-600, 1880; fasc. 13, 601-650, 1881; fasc. 14, 651-700, 1882; fasc. 15, 701-750, 1883; fasc. 16, 751-800, 1884; fasc. 17, 801-850, 1885; fasc. 18, 851-900, 1886; fasc. 19, 901-950, 1888; fasc. 20, 951-1000, 1889; fasc. 21, 1001-1050, 1891; fasc. 22, 1051-1100, 1892; fasc. 23, 1101-1150, 1895; fasc. 24, 1151-1200, 1896; fasc. 25, 1201-1250, 1898; fasc. 26, 1251-1300, 1899; fasc. 27, 1310-1350, 1900, fasc. 28, 1251-1400, 1901; fasc. 29, 1401-1450, 1902; fasc. 30, 1451-1500, 1902; fasc. 31, 1501-1525, 1903; fasc. 32, 1526-1550, 1904; fasc. 33, 1551-1575, 1904; fasc. 34, 1576-1600, 1905; fasc. 35, 1601-1625, 1905; fasc. 36, 1626-1650, 1905; fasc. 37, 1651-1675, 1906; fasc. 38, 1676-1700, 1907; fasc. 39, 1701-1725; 1906; fasc. 40, 1726-1750, 1907; fasc. 41, 1751-1775, 1908; fasc. 42, 1775-1880, 1908; fasc. 43, 1801-1825, 1909; fasc. 44, 1826-1850, 1909; fasc. 45, 1851-1875, 1909; fasc. 46, 1876-1900, 1910; fasc. 47, 1901-1925, 1910; fasc. 48, 1926-1950, 1911; fasc. 49, 1951-1975, 1911; fasc. 50, 1976-2000, 1912; fasc. 51, 2001-2025, 1912; fasc. 52, 2026-2050, 1913; fasc. 53; 2051-2075, 1913; fasc. 54, 2076-2100, 1914; fasc. 55, 2101-2125, 1914; 56, 2126-2175, 1918 |
| Remarks | Pfister, D. H. 1985. Mycotaxon 23: 1-139 |
The Harvard University Herbaria hold 6 type specimens of taxa described in this publication
Helotium phyllogenum Rehm [Type] 1885, fasc. 16: 7Helotium glanduliforme Rehm [Type] 1875, no 255
Helotium grisellum Rehm [Type] 1885, no. 766
Helotium grisellum Rehm [Type] 1885, no 766
Helotium phyllogenum Rehm [Type] 1885, no 768
Helotium subgranulosum Rehm [Type] 1882, no 607