Reference
Uwe Braun (2006): Type material in the Herbarium of the Martin-Luther-University Halle-Wittenberg (HAL) Bryophyta: Species described by G. E. L. Hampe, C. F.
Hornschuch, J. K. (C.) A. F. W. Müller (Müll. Hal.), etc. – Schlechtendalia – 14: 25 - 32.