SEM studies of the type specimens of Lamproderma biasperosporum, Macbrideola argentea and Trichia cascadensis (Eumycetozoa, myxomycetes)

Singer H., Moreno G. & Illana C. (2008) SEM studies of the type specimens of Lamproderma biasperosporum, Macbrideola argentea and Trichia cascadensis (Eumycetozoa, myxomycetes)

Sydowia 61 (1): 91–103

The type specimens of Lamproderma biasperosporum, Macbrideola argentea and Trichia cascadensis are studied by scanning electron microscopy. It is concluded that L. biasperosporum and M. argentea are very similar species that can be distinguished by the base of the stalk and the branching of the capillitium. The synonymy of T. cascadensis and T. alpina is confirmed: supposed distinguishing characters between these taxa can be reduced to different stages of maturation of the capillitium; all other macro- and microscopic characters are identical. Macbrideola argentea is a new record for the American continent.

Keywords: chorology, nivicolous myxomycetes, scanning electron microscopy, taxonomy