Harold G. Brotzman

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Procedures for sectioning fungal fructifications in host tissues or on artificial media are described, which allow observation of internal structures by scanning electron microscopy. Perithecia of Ceratocystis fimbriata and Phyllachora graminis, and telia of Puccinia xanthii showed excellent preservation of exposed structures in sections which were(More)
A procedure yielding sections of unembedded biological samples for observation by scanning electron microscopy is described. Sections of samples, fixed and hardened in OsO4, were obtained in quantity with a tissue sectioner. Subsequent treatments to osmium-coat cut surfaces were employed prior to critical point drying. The procedure yields cleanly cut(More)
CHARLES HORTON PECK originally described Polyporus undosus from the Catskill Mountains of New York State in 1881. MERRILL (1907) proposed the new combination Tyromyces u~dosus (PECK) MURR. the name applied to the species in most of the current European literature. The combination Leptoporus undosus has been proposed by PILXT (1936--1942), but has not been(More)
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