XXV 



Med. Repos. 



Medical Repository. New York. 



Mem. Am. Acad. 



American Academy of Arts and Sciences. Boston. Memoirs. 



Mem. N. Y. Mus. 



New York State Museum of Natural History. Albany. Memoirs. 



Mem. Soc. Phys. et Hist. Nat. 



Societe de Physique et d'Histoire Naturelle. Geneva. Memoires. 



Mem. Torr. Bot. Club. 



Torrey Botanical Club. New York. Memoirs. 



Mer. 



Merat, F. V. 



Mex. Fungi. 



Pringle's Mexican fungi (exsiccati). A. B. Seymour. 



Mich. 



Michelia. P. A. Saccardo. 



Michx. 



Michaux A. 



Micr. Sel. 



Micromycetes rariores selecti (exsiccati). Tycho Vestergren. 



Millsp. & Nutt. 



Millspaugh, C. F. and Nuttall, L. W. 



Mittheil. forstl. Versuchs. Oest. 



Mittheilungen aus dem forstlichen Versuchswesen Oesterreichs. 



Molkenb. 



Molkenboer, J. H. 



Mon. Ured. 



Monographia Uredinearum. Sydow, P. et H. 



Mont. 



Montagne, C. 



Morg. 

 Morgan, A. P. 



Muell. 



Mueller, O. F. 



Muhl. 



Muhlenberg, H. 



Myc. Bull. 



Mycological Bulletin. Columbus, Ohio. 



Myc. Notes. 



Mycological Notes. C. G. Lloyd Cincinnati. 



Myc. Univ. 



Mycotheca Universalis (exsiccati). Thuemen. 



