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Heterochaetella is retained as a separate genus to include three species. Heterochaete dubia Bourd. & Galz. is the type. Heterochaetella bispora, found on decayed wood in Ontario, is proposed as a new species. Heterochaetella brachyspora, treated as a variety of H. dubia by Bourdot and Galzin, is raised to specific rank. A redescription of the genus is given as well as descriptions and illustrations of the three species. Heterochaetella crystallina Bourd. is considered a synonym of Stypella papillata Möller and not congeneric with H. dubia. |
